ATMP

AMINO TRIMETHYLENE PHOSPHONIC ACID (ATMP)

Solution of Amino Trismethylene Phosphonic Acid that is used in various detergents and water treatment.

ATMP is a calcium scale inhibitor, metal sequestrant & corrosion inhibitor. It is an excellent calcium carbonate inhibitor and has a reasonable tolerance to bromine and chlorine dioxide.


ATMP or aminotris(methylenephosphonic acid) is a phosphonic acid with chemical formula N(CH2PO3H2)3. It has chelating properties. It can be synthesized from the Mannich-type reaction of ammonia, formaldehyde, and phosphorous acid, in a manner similar to the Kabachnik–Fields reaction

ATMP has better antiscale performance than that of polyphosphate through its excellent chelating ability, low threshold inhibition and lattice distortion process. It can prevent scale formation in water systems. ATMP is the phosphonate analog of nitrilotriacetic acid.

Applications
Detergents and cleaning agents
Water treatment
Scaling inhibition
Chelation

IUPAC name
[Bis(phosphonomethyl)amino]methylphosphonic acid

Tris(phosphonomethyl)amine; Nitrilotrimethylphosphonic acid; Aminotris(methylphosphonic acid); ATMP; NTMP

CAS Number: 6419-19-8 

Nitrilotrimethylenetris(phosphonic acid)

EC / List no.: 229-146-5
CAS no.: 6419-19-8
Mol. formula: C3H12NO9P3

ATMP has excellent chelation, low threshold inhibition and lattice distortion ability. It can prevent scale formation, calcium carbonate in particular, in water system. ATMP has good chemical stability and is hard to be hydrolyzed in water system. At high concentration, it has good corrosion inhibition.

ATMP is used in industrial circulating cool water system and oilfield water pipeline in fields of thermal power plant and oil refinery plant. ATMP can decrease scale formation and inhibit corrosion of metal equipment and pipeline. ATMP can be used as chelating agent in woven and dyeing industries and as metal surface treatment agent.

The solid state of ATMP is crystal powder, soluble in water, easily deliquescence, suitable for usage in winter and freezing districts. Because of its high purity, it can be used in woven & dyeing industries and as metal surface treatment agent. 

ATMP is usually used together with organophosphoric acid, polycarboxylic acid and salt to built all organic alkaline water treatment agent. ATMP can be used in many different circulating cool water system. The dosage of 1-20mg/L is recommended. As corrosion inhibitor, the dosage of 20-60mg/L is preferred.

Synonyms:
ATMP;ATMPA;AMP

Amino Trimethylene Phosphonic Acid;

Amino Tri(Methylene Phosphonic Acid);

Tris(Methylene Phosphonic Acid) Amine;

Nitrilotrimethylphosphonic Acid(NTP);

Nitrilotrimethylenetris(Phosphonic Acid);

Нитрилотриметилфосфоновая кислота(НТФ -кислота)

Properties:
ATMP has excellent chelation, low threshold inhibition and lattice distortion ability. It can prevent scale formation, calcium carbonate in particular, in water system. ATMP has good chemical stability and is hard to be hydrolyzed in water system. At high concentration, it has good corrosion inhibition.

ATMP is used in industrial circulating cool water system and oilfield water pipeline in fields of thermal power plant and oil refinery plant. ATMP can decrease scale formation and inhibit corrosion of metal equipment and pipeline. ATMP can be used as chelating agent in woven and dyeing industries and as metal surface treatment agent.

The solid state of ATMP is crystal powder, soluble in water, easily deliquescence, suitable for usage in winter and freezing districts. Because of its high purity, it can be used in woven & dyeing industries and as metal surface treatment agent. 

ATMP provides control of calcium and other metal salts including iron and manganese by acting as a crystal modifying agent and threshold inhibitor. ATMP is known to be a sequatrant and deposit control agent due to its dispersing and deflocculating characteristics.

Amino Trimethylenephosphonic Acid Solution, Nitrilotrimethylenetris (Phosphonic) Acid Solution


ATMP is a colourless/yellow liquid with a slight odour. This product is usually used together with organophosphoric acid, polycarboxylic acid and salt to build all organic alkaline water treatment agent.

ATMP can be used in many different circulating cool water systems and is commonly used as a corrosion inhibitor as it helps to hinder the process of corrosion of metal equipment and pipelines. ATMP can be used as a sequestering agent removing metal ions from a solution, which can then be used to eliminate water hardness and aid in textile dying. It is largely used in industrial water treatment and as an additive scale inhibitor. It prevents the scale formulation in water systems particularly calcium carbonate.

ATMP or aminotris(methylenephosphonic acid) is a phosphonic acid with chemical formula N(CH2PO3H2)3.
ATMP has better antiscale performance than that of polyphosphate through its excellent chelating ability, low threshold inhibition and lattice distortion process. It can prevent scale formation in water systems. ATMP is the phosphonate analog of nitrilotriacetic acid.


48%-52% active ATMP phosphonate designed as a concentrate to formulate scale preventives for treatment of calcium & magnesium carbonate, calcium, barium & strontium sulfate, and iron scales in water systems. Can be formulated with cationic amines for a combination scale and corrosion prevention product.

ATMP or aminotris(methylenephosphonic acid) is a phosphonic acid with chemical formula N(CH2PO3H2)3. It has chelating properties. ATMP has better antiscale performance than that of polyphosphate through its excellent chelating ability, low threshold inhibition and lattice distortion process. It can prevent scale formation in water systems. ATMP is the phosphonate analog of nitrilotriacetic acid.

ATMP;ATMPA;AMP,Amino Trimethylene Phosphonic Acid;Amino Tri(Methylene Phosphonic Acid);Tris(Methylene Phosphonic Acid) Amine;Nitrilotrimethylphosphonic Acid(NTP);Nitrilotrimethylenetris(Phosphonic Acid);Нитрилотриметилфосфоновая кислота(НТФ -кислота)

ATMP has excellent chelation, low threshold inhibition and lattice distortion ability. It can prevent scale formation, calcium carbonate in particular, in water system. ATMP has good chemical stability and is hard to be hydrolyzed in water system. At high concentration, it has good corrosion inhibition.

ATMP is used in industrial circulating cool water system and oilfield water pipeline in fields of thermal power plant and oil refinery plant. ATMP can decrease scale formation and inhibit corrosion of metal equipment and pipeline. ATMP can be used as chelating agent in woven and dyeing industries and as metal surface treatment agent.

The solid state of ATMP is crystal powder, soluble in water, easily deliquescence, suitable for usage in winter and freezing districts. Because of its high purity, it can be used in woven & dyeing industries and as metal surface treatment agent. 

ATMP is usually used together with organophosphoric acid, polycarboxylic acid and salt to built all organic alkaline water treatment agent. ATMP can be used in many different circulating cool water system. The dosage of 1-20mg/L is recommended. As corrosion inhibitor, the dosage of 20-60mg/L is preferred.

Aminotris (Methylene Phosphonic Acid) (ATMP) is an effective scale inhibitor used in various industrial applications such as industrial water treatment and detergents. It further shows good corrosion inhibition properties in presence of zinc and other phosphates. ATMP can be also used as chelating agent in the textile industry.

Applications:

Cooling water systems / industrial water treatment
Industrial detergents
Metal surface treatment as corrosion inhibitor for steel
Stabilizer in H2O2 solutions
Sequestering agent in textile auxiliaries

Amino tris(methylene phosphonic acid) Chemical Properties,Uses,Production
Water treatment agent
Amino tris(methylene phosphonic acid), its solid form is crystalline powder, soluble in water, hygroscopic, has excellent chelation, low threshold inhibition and lattice distortion. It has excellent scale inhibition below 200 ℃, low toxicity, good thermal stability, Amino tris(methylene phosphonic acid) can be dissociated into six positive and negative ions in the water, and can form a stable chelate with a variety of metal ions such as iron, copper, aluminum, zinc, calcium, magnesium, etc. It has a more preferable scale inhibition effect on carbonate . And it has good synergy with the polyphosphate, polycarboxylate, nitrite. There are good inhibition when in 40mg/L.


ATMP is an oraganophosphonate exhibiting excellent sequestration of metal ions at stoichiometric concentration and threshold inhibition of metal salt precipitation at sub-stoichiometric concentration. The ability of AQUACID 108EX to deflocculate or disperse solid particles combined with its hydrolytic stability makes it a versatile antiscalants for applications requiring efficient metal ion control.

ATMP is added in various chemical formulations for industrial water treatment, oilfield, industrial cleaners, paper & pulp, textile industry, metal treatment, electroplating, inks & construction chemicals as a scale inhibitor and a complexing agent.


Uses
It is used for power plants, refineries, petrochemicals, fertilizer plant cooling water, oil field injection water system,particularly suitable for hard high-calcium, low concentration multiple systems, such as power plants and high hardness high salinity, bad water quality conditions of the oil pipeline inhibitors,which may decrease the risk of corrosion and scaling of metal equipment and pipeline. In the textile printing and dyeing industry,Amino tris(methylene phosphonic acid) is used as a metal ion chelating agent, metal surface treatment agent.
The above information is edited by the chemicalbook of Tian Ye.

Instructions
Amino tris(methylene phosphonic acid) is often used with other organic acid, polylactic acid or salt to form organic water treatment agents for circulating cooling water systems under a variety of different water quality conditions. The amount of 1~20mg/L is preferred; in an amount of 20~60mg/L when used as a corrosion inhibitor .
Amino tris(methylene phosphonic acid)is acidic, pay attention to labor protection, should avoid contact with eye and skin, once contacted, flush with plenty of water.

ATMP or aminotris(methylenephosphonic acid) is a phosphonic acid with chemical formula N(CH2PO3H2)3. It has chelating properties. ATMP has better antiscale performance than that of polyphosphate through its excellent chelating ability, low threshold inhibition and lattice distortion process. It can prevent scale formation in water systems. ATMP is the phosphonate analog of nitrilotriacetic acid.

ATMP is usually used together with organophosphorus acid, polycarboxylic acid, and salt to built all organic alkaline water treatment chemicals. Amino trimethylene phosphonic acid is broadly applied in recirculated cooling water systems for the power station, oil field, and central air-conditioning, etc.

It is also used in the woven and dyeing industry. As an antiscalant and chelating agent, the recommended dosage is 1-20mg/L. This will increase to 20-60mg/L is used as a corrosion inhibitor.


Usage
Used for the scale prevention of cooling water system, oil pipeline and boiler; Used as the scale inhibitor for the oil pipeline with high hardness, high salinity and bad water quality; Used as scale inhibitor and corrosion inhibitor for the treatment of cooling water, boiler water, oil field water; Used for circulating cooling water of thermal power plant and an oil refinery.

Chemical Properties
colourless liquid

Uses
A powerful complexing agent. A potent acid sphingomyelinase inhibitor.
Amino tris(methylene phosphonic acid) Preparation Products And Raw materials

Raw materials
formaldehyde Phosphorus trichloride Ammonium chloride


Nitrilotrimethylenetris(phosphonic acid)
EC Inventory
Nitrilotrimethylenetris(phosphonic acid)
nitrilotrimethylenetris(phosphonic acid)

Organophosphonates are multifunctional metal ion control agents. 
By definition, they contain at least one functional group, -PO 3 H 2, attached to a carbon atom. 

The carbon to phosphorous bond is one of the phosphonate’s desirable attributes: 
1. A strong anionic (negative) charge. 
2. Stability in aqueous systems to high temperatures, pressures and pH extremes. 
3. Multiple bonding sites within their complex structures. 
4. High aqueous solubility. 
5. Compatibility and ease of formulation


DEQUEST ® offers eight primary phosphonate families: six amino phosphonates where the carbon holding the -PO 3 H 2 functional group is bonded to a nitrogen atom in the molecule and two non-amino phosphonates where the -PO 3 H 2 functional group is bonded to another carbon atom


In most product families several product forms are available, including the acid, sodium or potassium salts solutions as well as powders or granules. 
The six families of amino phosphonates are DEQUEST ® 2000, 2040, 2050, 2060, 2080, 2090, and the two non-amino phosphonate families are DEQUEST ® 2010 and 7000. 
These products are classified according to a four digit product code described hereafter. The first three digits designate the series, grouping the DEQUEST ® grades belonging to the same chemical structure, i.e.: 
DEQUEST ® 200X series Grades based on Amino tri (methylene-phosphonic acid) or ATMP. 
DEQUEST ® 201X series Grades based on 1-Hydroxyethylidene 1, 1-Diphosphonic acid or HEDP. 
DEQUEST ® 204X series Grades based on Ethylenediamine tetra (methylene phosphonic acid) or EDTMP. 
DEQUEST ® 205X series Grades based on Hexamethylenediamine tetra (methylene phosphonic acid) or HMDTMP. 
DEQUEST ® 206X series Grades based on Diethylenetriamine penta (methylene phosphonic acid) or DETPMP.
 DEQUEST ® 208X series Grade based on a proprietary polyamino phosphonic acid preparation. DEQUEST ® 209X series Grades based on Bis hexamethylenetriamine phosphonate.
 DEQUEST ® 700x series Grades based on Phosphonobutane tricarboxylic acid (PBTC). The fourth number (x) indicates the product type, using the following convention:
0 - Acid solution 
1 - Solid acid 
4 - Potassium salt 
6 - Sodium salt 
7 - Calcium salt As an example, DEQUEST ® 2066 stands for the aqueous solution of the sodium salt of Diethylene-triamine penta (methylenephosphonic acid)

What Is Amino Trimethylene Phosphonic Acid
ATMP or amino trimethylene phosphonic acid is a phosphonic acid with chemical formula N(CH₂PO₃H₂)₃. It has chelating properties. It can be synthesized from the Mannich-type reaction of ammonia, formaldehyde, and phosphorous acid


ATMP ,also called amino trimethylene phosphonic acid is broadly applied in recirculated cooling water systems for power station, oil field, central air-conditioning etc. It is also used in woven and dyeing industry. As antiscalant and chelating agent, the recommended dosage is 1-20mg/l. This will increase to 20-60mg/l if used as corrosion inhibitor.

Synonyms    Amino, tris(methylene phosphonic acid); Aminotris(methanephosphonic acid); Amino, tris(methylene phosphonic acid); Aminotris(methylphosphonic acid); ATMP; Nitrilotrimethanephosphonic acid; Nitrilotrismethylenetriphosphonic acid; Nitrilotris(methylene)triphosphonic acid, 50 wt% solution in water; Nitrilotris(methylphosphonic acid); Tris(phosphonomethyl)amine

Aminotris (methylene phosphonic acid) (ATMP)

Aminotris (Methylene Phosphonic Acid) (ATMP) is an effective scale inhibitor used in various industrial applications such as industrial water treatment and detergents. It further shows good corrosion inhibition properties in presence of zinc and other phosphates. ATMP can be also used as chelating agent in the textile industry.

Applications:

Cooling water systems / industrial water treatment
Industrial detergents
Metal surface treatment as corrosion inhibitor for steel
Stabilizer in H2O2 solutions
Sequestering agent in textile auxiliaries

CAS names
Phosphonic acid, P,P',P''-[nitrilotris(methylene)]tris-

IUPAC names
(nitrilotrimethanediyl)tris(phosphonic acid)

[bis(phosphonomethyl)amino]methylphosphonic

[bis(phosphonomethyl)amino]methylphosphonic acid
[bis(phosphonomethyl)amino]methylphosphonic acid CAS Number:
[nitrilotris(methylene) ]tris(phosphonic acid)
[nitrilotris(methylene)]tris(phosphonic acid)
AMINO TRI (METHYLENE PHOSPHONIC ACID)
Amino Tri(methylene phosphonic acid)
Amino tris(methylenephosphonic acid)
Amino Tris(Methylenephosphonic) Acid
Amino-tris(methylene phosphonic acid)
aminotrimethylene phosphonic acid
Aminotris(methylenephosphonic acid), ATMP
ATMP
atmp
ATMP
ATMP-H
Methylenephosphonic Acid
NITRILOTRIMETHYLENETRIS (PHOSPHONIC ACID)
nitrilotrimethylenetris(phosphonic acid
NITRILOTRIMETHYLENETRIS(PHOSPHONIC ACID) 
Nitrilotrimethylenetris(phosphonic acid)
nitrilotrimethylenetris(phosphonic acid)
nitrilotrimethylenetris(phosphonic acid)
Nitrilotrimethylentris(phosphonsäure)
Phosphonic acid, [nitrilotris(methylene)]tris-
{[bis(phosphonomethyl)amino]methyl}phosphonic acid

Trade names
1,1,1-Nitrilotri(methylphosphonic acid)
[Nitrilotris(methylene)]trisphosphonic acid
AMINO TRI(METHYLENE PHOSPHONIC ACID)
Amino Trimethylene Phosphonic Acid
Aminotri(methylenephosphonic acid)
Aminotris(methylenephosphonic acid)
Aminotris(methylphosphonic acid)
ATMP
ATMP-H
ATMPA
Briquest 301-50A
Cublen AP1
Cublen AP5
Nitrilotri(methylenephosphonic acid)
NTMP
Phosphonic acid, [nitrilotris(methylene)]tris-
Tris(Methylene Phosphonic Acid) Amine
Tris(methylenephosphonic acid)amine
Uniphos 200

Iron nanoparticles are of interest in fields such as water treatment and alternative energy due to their reactive properties and low cost. 
When combined with other metals, iron-metal nanoparticles can act as catalysts for a diverse set of reactions. 
In solution-based nanoparticle synthesis, organic stabilizers play a critical role in the properties of the nanoparticles, including size, morphology, composition, and colloidal stability. 
Chelator-type molecules can be used as nanoparticle stabilizers such as amino tris(methylene phosphonic acid) (ATMP)

Biofouling and corrosion are the two important operational problems in heat exchangers and the associated cooling water system. 
Pipelines are known to be susceptible, especially to fouling-induced corrosion, due to their basic design characteristics and recirculation of water. 
Though biocides and inhibitors are used, problems have been noticed in various cooling water systems. 
The problems included flow blockage of pipes, punctures and unacceptable general corrosion rates of the system components. 
Phosphates and chromates have normally been used as scale- and corrosion inhibitors in cooling water systems. 
In the latge 1970s and 1980s polyphosphates, phosphonates, carboxylic acids and polymeric phosphonates with zinc ions were used as corrosion inhibitors and antiscalants 11-51. 
Polyphosphates have easily hydrolyzable P-0 bonds resulting in the formation of orthophosphates. 
These orthophosphates are not good corrosion inhibitors but good feed for bacteria and algae, resulting in biofouling effects. 
Since phosphates act as good nutrients 16-81 for bacteria and inhibitors such as chromate are toxic to the environment, the development of suitable chemicals that are capable of replacing phosphates and chromates has become highly essential. 
Phosphonates as such are not good corrosion inhibitors but in the presence of zinc ions they hnction as good corrosion inhibitors. 
Many industries are using different kinds of biocides to control microfouling in cooling water systems. 
Maintenance engineers are identifying suitable biocides for specific microorganisms like algae, SRB, and iron bacteria, etc., to prevent the microbial corrosion. 
For controlling fouling and corrosion, inhibitors are added continuously and biocides are added once a week or once in fifteen days. 
Hence, it is quite essential to find the interference between biocides and inhibitors in cooling water systems. 
Organophosphonates are being used as inhibitors in cooling water for over a decade and the corrosion inhibition is decided by their ability to form a protective film on steel. 
The addition of tartrate with organophosphonic acid (2-carboxy ethyl phosphonic acid) and zinc metal cations 191, the presence of fatty acids, triazoles 1101, combination of carboxpnethyl phosphonic acid with carboxy ethyl phosphonic acid I1 11, multivalent cations with molybdate I121 have been reported for controlling corrosion of mild steel in aqueous environments. 
Generally, the efficiency of inhibitors for corrosion control and the efficiency of biocides on biological growth are being evaluated by chemists and microbiologists separately


Phosphonates are family of chelating compounds and scale forbidder, which by structure has the phosphonic acid group in common. 
Phosphonates are organometallic derivatives of phosphonic acid containing C−PO(OH)2 or C−PO(OR)2 groups where R is alkyl or aryl group. 
Several commercially important compounds like phosphonates, glyphosate, and ethephon which is extensively used as popular plant growth regulator, are derived from phosphonic acids. They are used in household and industrial cleaning products, personal care products, and water treatment additives in various applications. Derivatives of phosphonates like bisphosphonates are accepted drugs for treatment of osteoporosis. In medicinal chemistry, phosphonate is used as stable bioisotere for phosphate, similarly in the antiviral nucleotide analogy, Tenofovir, which is one of the foundations of anti-HIV therapy. In construction sector, phosphonate is used as concrete retarder. The R&D in the construction sector is investigating the use of phosphates as superplasticizers which increase the concrete fluidity and workability.
The increasing demand for the phosphonate as chelating agent in the chemical industry and to synthesize its derivatives is likely to boost the market. For instance, when amine group is introduced on the phosphonic acid molecule, it increases the metal binding properties of phosphonate. Phosphonates are effective water softeners which prevents the formation of water-insoluble precipitates. The increasing adoption of phosphonates as water softeners is likely to create positive impact on the market. Additionally, the use of phosphonates and biphosphonates in the treatment of HIV, Hepatitis B, Sudden Oak Death, and others shall foster the market.

Scale Inhibitors
Scale occurs because the minerals in produced water exceed their saturation limit as temperatures and pressures change. Scale can vary in appearance from hard crystalline material to soft, friable material and the deposits can contain other minerals and impurities such as paraffin, salt and iron. Scale inhibitors are used to prevent these deposits from forming.

SYNONYMS
C3-H12-N-O9-P3, ATMP, "phosphonic acid, [nitrilotris(methylene)]tri", "amino tri(methyl phosphonic acid)", "aminotris(methyl phosphonic acid)", "amino tris(methane phosphonic acid)", "nitrilotrimethylene phosphonic acid", "nitrilotris(methylene triphosphonic acid)", "nitrilotris(methyl phosphonic acid)", "tris(phosphonomethyl) amine", phosphonates, "ROP 00", ROP00, "Ferrophos 509", "Dowell L37"


Usage:
ATMP is usually used together with organophosphoric acid, polycarboxylic acid and salt to built all organic alkaline water treatment agent. ATMP can be used in many different circulating cool water system. The dosage of 1-20mg/L is recommended. As corrosion inhibitor, the dosage of 20-60mg/L is preferred.

Synonyms:
ATMP;ATMPA;AMP

Amino Trimethylene Phosphonic Acid;

Amino Tri(Methylene Phosphonic Acid);

Tris(Methylene Phosphonic Acid) Amine;

Nitrilotrimethylphosphonic Acid(NTP);

Nitrilotrimethylenetris(Phosphonic Acid);

Нитрилотриметилфосфоновая кислота(НТФ -кислота)

Keywords: ATMP
Related Products: Amino Trimethylene Phosphonic Acid
Penta sodium salt of Amino Trimethylene Phosphonic Acid (ATMP•Na5)
Tetra sodium salt of Amino Trimethylene Phosphonic Acid (ATMP•Na4)

PHOSPHONATES FOR WATER TREATMENT FORMULATIONS
Phosphonates are multi-functional metal ion control agents. The unique combination of properties found in phosphonates makes them well suited to address many of the problems encountered in the use of water. Thus, they have become a widely used component in water treatment formulations. In recent years they have also found their way into numerous other applications where metal ion control is crucial to a product or process, such as detergents, cleaners, peroxide stabilization, oil field, swimming pools and spas, and many others.

PHOSPHONATES OFFER A UNIQUE COMBINATION OF FUNCTIONS
•    “Threshold Effect” scale inhibition: the ability of very small amounts of scale inhibitors to keep large quantities of scalants in solution
•    Sequestration: the ability to inactivate a metal ion and keep it in solution,preventing its negative side-effects
•    Dispersion: prevents the agglomeration of scale particles
•    Corrosion Control: provides synergistic corrosion control when used with zinc,phosphates, nitrates, molybdates, and others


Industries and applications using phosphonates for scale control include Cooling water, Boiler water, Detergents and cleaners, Oil field, Pulp and paper, Reverse osmosis, and Swimming pools.


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ATMP    Aminotri (methylene phosphonic acid)
Na5ATMP    Penta sodium salt of Aminotri (methylene phosphonic acid)
BHMT    Bis [Hexamethylene
triamine penta (Methylene phosphonic acid)]
DETPMP    Diethylenetriamine penta (methylenephosphonic acid)
NaxDETPMP    Partially neutralized Diethylenetriamine penta (methylenephosphonic acid)
HEDP    (1-Hydroxyethylidene-1,1-Diphosphonic Acid)
Na4HEDP (liquid and powder)    Tetrasodium salt of 1-Hydroxyethylidene-1,1-diphosphonic acid
HEMPA    N-(2-hydroxyethyl)-N, N-di (methylenephosphonic acid)
K6HMDTMP    Hexapotassium salt of hexa-methylene diaminetetra (methylenephosphonic acid)
PAPEMP    Polyamino Polyethermethylene Phosphonic Acid
PBTC    2-Phosphonobutane-1,2,4-tricarboxylic acid


Phosphonates
photo_coolingtower21Phosphonates are excellent chelating agents, scale inhibitors, and threshold inhibitors that remain stable in severe conditions.


Phosphonates are mainly used in industrial applications.

Cooling Water Systems
Desalination Systems
Oil Fields

HEDP 60% (1-Hydroxyethylidene- 1,1-Diphosphonic Acid) HEDP provides control of calcium and other metal slats including iron and manganese by acting as a strong crystal modifying agent and threshold inhibitor. It is also a sequestrant and an excellent deposit control agent.

PBTC 50% (2-Phosphonobutane-1,2,4-Tricarboxylic Acid) PBTC acts as a crystal modifying agent and threshold inhibitor for calcium and other metal salts. Is widely used in industry as a sequestering agentand calcium carbonate scale inhibitor. In systems that utilize oxidizing microbiocides, such as chlorine and bromine, PBTC exhibits superior stability under oxidizing conditions.

ATMP 50% (Aminotris (Methanephosphonic Acid); Aminotrimethylene Phosphonic Acid) ATMP provides control of calcium and other metal salts including iron and manganese by acting as a crystal modifying agent and threshold inhibitor. ATMP is known to be a sequatrant and deposit control agent due to its dispersing and deflocculating characteristics.

ATMP•Na4 (Tetra Sodium Salt of Amino Trimethylene Phosphonic Acid) 
Tetra Sodium Salt of Amino Trimethylene Phosphonic Acid
ATMP•Na4
CAS No. 20592-85-2
Molecular Formula: C3H8NO9P3Na4           
Molecular weight: 387
Synonyms: Dequest 2006A, Sodium Amino-Tris(methylenesulphonate)

Properties
ATMP•Na4is the salt of ATMP and can inhibit the scale formation, calcium carbonate in particular, in water system. It can be used in circulating cool system in power plant, oil refinery plant and oilfield refill water system.

ATMP•Na4has good synergistic effects with other additives, in neutral to acidic condition and no ammonia smell is let off.
ATMP•Na4 is used together with other organophosphonic acid, polycarboxylic acid or salt to form organic alkaline agents, it is used in circulating cool water system for all water quality.

Amino Trimethylene Phosphonic Acid (ATMP) is a phosphonate that finds its biggest application in water treatment. ATMP are available in salts of sodium compounds such as ATMP 2Na (Amino Trimethyl Phosphonic Acid - Disodium salt), ATMP 4Na (Amino Trimethyl Phosphonic Acid - Tetra sodium salt) etc. The product is commercially produced in liquid form as ATMP 50%. Amino Trimethylene Phosphonic Acid (ATMP) consists of properties such as low threshold inhibition, lattice distortion, and exceptional chelation. This acid helps in the prevention of formation of calcium carbonate in water system. It exhibits excellent chemical stability, best corrosion inhibition and is difficult to hydrolyze in water systems. ATMP can be used in oilfield water pipeline in thermal power plant & oil refinery and in industry for circulating cool water system.

Key Attributes and Benefits:

Effectively used as a scale inhibitor in water treatment
These also serve as an effective substance in detergent and cleaning applications
It exhibits excellent chemical stability


A Comparative Performance Evaluation of Some Novel “Green” and Traditional Antiscalants in Calcium Sulfate Scaling
Konstantin Popov ,1 Galina Rudakova,1 Vladimir Larchenko,1 Mariya Tusheva,1 Semen Kamagurov,1 Julia Dikareva,1 and Natalya Kovaleva1


Abstract
A relative ability of industrial samples of four phosphorus-free polymers (polyaspartate (PASP); polyepoxysuccinate (PESA); polyacrylic acid sodium salt (PAAS); copolymer of maleic and acrylic acid (MA-AA)) and of three phosphonates (aminotris(methylenephosphonic acid), ATMP; 1-hydroxyethane-1,1-bis(phosphonic acid), HEDP; phosphonobutane-1,2,4-tricarboxylic acid, PBTC) to inhibit calcium sulfate precipitation is studied following the NACE Standard along with dynamic light scattering (DLS), scanning electron microscopy (SEM), and X-ray diffraction (XRD) technique. For the 0.5 mg·dm−3 dosage, the following efficiency ranking was found:  ≫ . The isolated crystals are identified as gypsum. SEM images for PESA, PASP, PAAS, and HEDP and for a blank sample indicated the needle-like crystal morphology. Surprisingly, the least effective reagent PBTC revealed quite a different behavior, changing the morphology of gypsum crystals to an irregular shape. The DLS experiments exhibited a formation of 300 to 700 nm diameter particles with negative ζ-potential around −2 mV for all reagents. 
Although such ζ-potential values are not capable of providing colloidal stability, all three phosphonates demonstrate significant gypsum particles stabilization relative to a blank experiment.

1. Introduction
Calcium sulfates are common scale-deposit minerals in water treatment plants and oil and gas industry, causing significant plugging of pipe lines and membranes and increasing the production cost [1]. Commercial scale inhibitors (antiscalants) are widely used for preventing scale deposits in pipes, heat exchangers, and desalination facilities [1–4].
Commonly used commercial antiscalants are represented by three chemical families: polyphosphates (hexametaphosphate (HMP), tripolyphosphate (TPP), etc.), organophosphonates (aminotris(methylenephosphonic acid), ATMP; 1-hydroxyethane-1,1-bis(phosphonic acid), HEDP; 2-phosphonobutane 1,2,4-tricarboxylic acid (PBTC), etc.), and organic polyelectrolytes (polyacrylates (PA); polycarboxysulfonates). Among these, the organophosphonates are dominating recently at the World market [5]. At the same time, phosphorus-based inhibitors are hardly biodegradable and persist for many years after their disposal, which leads to eutrophication problems [4, 6]. Phosphorus discharges are therefore regulated in many countries worldwide, and permissible limits are constantly decreasing [4].
Increasing environmental concerns and discharge limitations have forced the scale-inhibitor chemistry to move toward “green antiscalants” that are readily biodegradable and have minimal environmental impact. Intensive efforts are applied recently to develop the “green” alternatives to organophosphonates and nonbiodegradable polyacrylates [2, 4, 7–9]. Among these novel inhibitors, such chemicals as polymaleates (PMA), polyaspartates (PASP), and polyepoxysuccinates (PESA), as well as their various derivatives including copolymers with PA, are the most promising.
It is important to note that the new antiscalants should have acceptable levels of performance at cost-effective dose rates. 
This requirement raises a problem of reliable tests, which permit a correct “old red” and “novel green” inhibitors efficiency comparison [8–22]. 
Unfortunately, most of the data published on calcium sulfate deposition are considering a single antiscalant or a single group of similar reagents studied under hardly comparable conditions [8–11, 19, 21, 22], for example, different supersaturation index, brine composition, temperature, and measurement technique. Unfortunately, the comparative inhibitors performance ranking reports done by one and the same research group under uniform conditions are rather rare [7, 12–14, 18, 21, 22].
At the same time, such rankings reveal frequently rather conflicting results. 
For example, different research groups report for calcium sulfate different antiscalant efficacy sequences. 
Particularly, for one and the same set of reagents, one group presents НЕDP as the most efficient [12], while some others report it to be the least effective [22]. 
Meanwhile, for PBTC, both groups report a rather poor efficiency [12–14], while [18] indicates exactly PBTC as an antiscalant of choice for gypsum precipitation.
In this respect, a comparative performance of some traditional antiscalants (phosphonates, polyacrylates) and the novel environmentally friendly polymers (PASP, PESA) studied by a reliable method under comparable conditions becomes desirable. 
In the present work, the effects of industrial samples of four phosphorus-free polymers and of three phosphonates were tested with respect to their ability to inhibit calcium sulfate precipitation following NACE Standard [23]. Since it is anticipated that the inhibitors would cause changes of the surface charge of the calcium sulfate particles thus affecting their aggregation [20], then the zeta-potential measurements by dynamic light scattering (DLS) technique were conducted along with scanning electron microscopy (SEM) and powder X-ray diffraction (XRD) studies of the solid phase equilibrating with colloidal solution. As far as we know, none of the antiscalants mentioned above was studied by NACE protocol for gypsum scale inhibition activity. At the same time, the supplementary details of a corresponding scale formation characterized by DLS, SEM, and XRD technique are also quite novel.

Conclusions
A relative ability of the industrial samples of four phosphorus-free polymers (PASP, PESA, PAAS, and MA-AA) and of three phosphonates (ATMP, HEDP, and PBTC) to inhibit calcium sulfate precipitation is tested following the NACE Standard TM0374-2007 for the dosages 0.5 and 3.0 mg·dm−3. 
For the dosage 0.5 mg·dm−3, ATMP and MA-AA exhibited 100% inhibition, while PBTC and HEDP revealed the least efficacy around only 40%. 
The following efficiency ranking  ≫  is found. Taking into account 1.0 mg·dm−3 dosage data and DLS measurements, this ranking may be formulated more precisely: MA-AA > ATMP > PESA (400–1500 Da) > PASP (1000–5000 Da) ≫ PAAS (3000–5000 Da) > PBTC > HEDP. Thus, the maleic anhydride-based polymer is found to be the most effective for CaSO4 scaling system in static laboratory NACE testament conditions.
Analysis of publications on inhibiting impact of different antiscalants on the calcium sulfates deposition and of the existing laboratory reagent rankings reveals rather conflicting results. Such a diversity in antiscalants efficacy reports makes a choice of a proper reagent for a particular application rather difficult. It is stated that the grounds for that may be associated with unclear reagent formulations and nonuniform testament conditions (different  molar ratios, different supersaturation indexes, different temperatures, treatment time, etc.). Thus, a widely accepted laboratory-scale inhibitors screening procedure is required and a large variety of empirical techniques to assist selection of suitable antiscalants for specific situations has to be developed.
A parallel study of the aqueous and solid gypsum phases in NACE brines by DLS, SEM, and XRD indicated that the observed colloidal stability in presence of phosphonates and polymers could not be attributed to either electrostatic stabilization or the crystal growth retardation. Indeed, the zeta-potentials for all reagents appeared to be insufficient to prevent gypsum particles aggregation. Meanwhile, it is found that those reagents that demonstrate a higher inhibition efficacy in a NACE brine do not change the morphology of gypsum, while the less effective PBTC does. As far as we know, this is the first observation of such “anomalous” impact of antiscalants on the crystal morphology. These facts support an opinion that the antiscalant activity mechanisms are still not yet clear [29, 33, 34], and a further work is needed to reach a progress in this field.

•    NITRILOTRIMETHANEPHOSPHONIC ACID
•    NITRILOTRI(METHYLPHOSPHONIC ACID)
•    NITRILOTRIS(METHYLENEPHOSPHONIC ACID)
•    NITRILOTRIS(METHYLENE)TRIPHOSPHONIC ACID
•    TRIS(PHOSPHONOMETHYL)AMINE
•    Dequest 2000
•    BRIQUEST 301-50A
•    ATMP
•    AMINO TRI(METHYLENE PHOSPHONIC ACID)
•    Aminotrimethylenphosphonsure
•    NITRILOTRIS(METHYLENEPHOSPHONIC ACID): 50% IN WATER
•    Nitrilotris(methylenephosphonic Acid) (ca. 50% in Water, ca. 2.2mol/L)
•    Nitrilotrimethylene Triphosphonic Acid
•    Tri(phosphonomethyl)amine
•    Nitrilotris[methylene]triphosphonic acid 10g [6419-19-8]
•    AMinotris (Methylene Phosphonic Acid) (ATMP)
•    (ca. 50% in Water, ca. 2.2Mol/L)
•    Nitrilotris(Methylenephosphonic Acid) 
•    1,1,1-Nitrilotris(Methylphosphonic Acid)
•    Briquest 301
•    P,P',P''-[nitrilotris(Methylene)]trisphosphonic Acid
•    Nitrilotri(Methylphosphonic
•    Nitrilotris(Methylene)triphosphonic acid, 50 wt% solution in water 100GR
•    Nitrilotris(Methylene)triphosphonic acid, 50 wt% solution in water 1KG
•    Nitrilotri(Methylphosphonic acid),50% in water
•    Nitrilotri(Methylphosphonic acid) (ATMP)
•    Aminotris(methanephosphonic acid)
•    AMINO, TRIS(METHYLENE PHOSPHONIC ACID)
•    AMINO TRIMETHYLENE PHOSPHONIC ACID (ATMP)
•    ATMPA
•    nitrilotrimethylenetris(phosphonic acid)
•    Tris(Methylene Phosphonic Acid) Amine
•    Phosphonic acid,P,P',P''-[nitrilotris(Methylene)]tris-
•    Phosphonic acid, nitrilotris(methylene)tris-
•    nitrilotri(methylphosphonic acid) solution
•    (Nitrilotris(methylene)
•    triphosphonic acid
•    Nitrilotri(methylphosphonic acid) >=97.0% (T)
•    Nitrilotris(methylenephosphonic acid), 50% solution in H2O
•    (nitrilo
•    (nitrilotris(methylene))triphosphonic
•    (nitrilotris(methylene))tri-phosphonicaci
•    (nitrilotris(methylene))trisphosphonicacid
•    (nitrilotris(methylene))tris-Phosphonicacid
•    [nitrilotris(methylene)]tris-phosphonicaci
•    [nitrilotris(methylene)]trisphosphonicacid
•    aminotri(methylphosphonicacid)
•    aminotris(methylphosphonicacid)
•    dowelll37
•    ferrofos509
•    nitrilotrimethylenephosphonicacid
•    nitrilotris(methylene)triphosphonic
•    nitrilotris(methylene)triphosphonicacid,50wt%solutioninwater
•    nitrilotris(methylene)triphosphonicacidsolution
•    nitrilotris(methylphosphonicacid)
•    ntpo
•    Amino TrimeJSylene Phosphonic Acid (ATMP)
•    ATMP(AMino TriMethylene Phosphonic Acid)


6419-19-8

(Nitrilotris(methylene))triphosphonic acid

ATMP

Aminotrimethylene phosphonic acid

Tris(phosphonomethyl)amine

Ferrofos 509

Dowell L 37

Dequest 2000

Nitrilotrimethylphosphonic acid

Nitrilotris(methylenephosphonic acid)

Aminotris(methylphosphonic acid)

Nitrilotri(methylphosphonic acid)

Aminotri(methylenephosphonic acid)

Aminotris(methylenephosphonic acid)

Aminotri(methylene phosphonic acid)

Aminotri(methylphosphonic acid)

Nitrilotrimethanephosphonic acid

Nitrilotrimethylenetris(phosphonic acid)

Phosphonic acid, [nitrilotris(methylene)]tris-

Aminotris(methanephosphonic acid)

Nitrilotrimethylenephosphonic acid

UNII-1Y702GD0FG

Amino, tris(methylene phosphonic acid)

NITRILOTRIS(METHYLPHOSPHONIC ACID)

(Nitrilotris(methylene))trisphosphonic acid

EINECS 229-146-5

BRN 1715724

Nitrilotris(methylene)trisphosphonic acid

[Nitrilotris(methylene)]trisphosphonic acid

AI3-51572

1Y702GD0FG

Sodium (nitrilotris(methylene))triphosphonate

Aminotris(methylphosphonic acid), sodium salts

Amino tris(methylene phosphonic acid)

Aminotri(methylene phosphonic acid), sodium salt

Sodium (nitrilotris(methylene))tris(phosphonate)

Nitrilotris(methylene phosphonic acid), sodium salt

(Nitrilotris(methylene))trisphosphonic acid, sodium salt

20592-85-2

Phosphonic acid, (nitrilotris(methylene))tri-, sodium salt

(nitrilotris(methylene))tris(phosphonic acid)

[nitrilotris(methylene)]tris(phosphonic acid)

Phosphonic acid, (nitrilotris(methylene))tri-

Phosphonic acid, (nitrilotris(methylene))tris-

Phosphoric acid, (nitrilotris-(methylene))tris-

NTMP

(nitrilotris(methylene))tris-Phosphonic acid

[nitrilotris(methylene)]tris-Phosphonic acid

[bis(phosphonomethyl)amino]methylphosphonic acid

Phosphonic acid, P,P',P''-(nitrilotris(methylene))tris-

Phosphonic acid, P,P',P''-[nitrilotris(methylene)]tris-

EINECS 243-900-0

Dequest 2001

Nitrilotri(methylphosphonic acid) (ATMP)

Phosphonic acid, P,P',P''-(nitrilotris(methylene))tris-, sodium salt (1:?)

DSSTox_CID_7624

EC 229-146-5

EC 243-900-0

DSSTox_RID_78532

DSSTox_GSID_27624

SCHEMBL21434

4-01-00-03070 (Beilstein Handbook Reference)

CHEMBL260191

DTXSID2027624

KS-00000WIQ

Amino trimethylene Phoshonic Acid

Aminotris(methylenephosphonicacid)

Sym-Trimethylaminetriphosphonic acid

ZINC3861121

Sodiumamino-tris(methylenesulphonate)

Tox21_202753

MFCD00002138

SBB037836

nitrilotris (methylenephosphonic acid)

AKOS003599784

MCULE-9610981851

7611-50-9 (tri-hydrochloride salt)

NCGC00164342-01

NCGC00260300-01

2235-43-0 (penta-hydrochloride salt)

NitrilotrimethylentriphosphonsA currencyure

SC-18354

ST011997

CAS-6419-19-8

(nitrilotris(methylene))tri-Phosphonic acid

LS-106711

FT-0622276

N0474

(nitrilotris-(methylene))tris-Phosphoric acid

NITRILOTRIS(METHYLENE)TRIPHOSPHONICACID

{[bis(phosphonomethyl)amino]methyl}phosphonic acid

Nitrilotri(methylphosphonic acid), >=97.0% (T)

Q4222241

W-104858

p,p',p''-(Nitrilotris(methylene))tris-Phosphonic acid

Nitrilotris(methylene)triphosphonic acid solution, 50 wt. % in H2O

Nitrilotrimethylenetris(phosphonic acid)
Nitrilotrimethylenetris(phosphonic acid)
nitrilotrimethylenetris(phosphonic acid)
Pre-Registration process

CAS names
Phosphonic acid, P,P',P''-[nitrilotris(methylene)]tris-


IUPAC names
(nitrilotrimethanediyl)tris(phosphonic acid)
[bis(phosphonomethyl)amino]methylphosphonic
[bis(phosphonomethyl)amino]methylphosphonic acid
[bis(phosphonomethyl)amino]methylphosphonic acid CAS Number:
[nitrilotris(methylene) ]tris(phosphonic acid)
[nitrilotris(methylene)]tris(phosphonic acid)
AMINO TRI (METHYLENE PHOSPHONIC ACID)
Amino Tri(methylene phosphonic acid)
Amino tris(methylenephosphonic acid)r
Amino Tris(Methylenephosphonic) Acid
Amino-tris(methylene phosphonic acid)
aminotrimethylene phosphonic acid
Aminotris(methylenephosphonic acid), ATMP
ATMP
atmp
ATMP
ATMP-H
Methylenephosphonic Acid
NITRILOTRIMETHYLENETRIS (PHOSPHONIC ACID)
nitrilotrimethylenetris(phosphonic acid
NITRILOTRIMETHYLENETRIS(PHOSPHONIC ACID)
Nitrilotrimethylenetris(phosphonic acid)
nitrilotrimethylenetris(phosphonic acid)
nitrilotrimethylenetris(phosphonic acid)
Nitrilotrimethylentris(phosphonsäure)
Phosphonic acid, [nitrilotris(methylene)]tris-
{[bis(phosphonomethyl)amino]methyl}phosphonic acid


A relative ability of four industrial samples of phosphorus-free polymers (polyaspartate, PASP; polyepoxysuccinate, PESA; polyacrylic acid sodium salt, PAAS; copolymer of maleic and acrylic acid, MA-AA) and of two phosphonates (aminotris(methylenephosphonic acid), ATMP; 1-hydroxyethane-1,1-bis(phosphonic acid), HEDP) to inhibit calcium carbonate precipitation at a dosage 10 mg•dm-3 is tested in static experiments following the NACE Standard TM0374-2007 and in a dynamic modeоfevaporation plant for Caspian Sea water imitate. The reagent efficiency ranking following NACE Standard gives evidently a preference to phosphonates over polymers: ATMP~HEDP>PESA (400-1,500 Da) ~PASP (1,000–5,000 Da)>PAAS (3,000–5,000 Da) ~MA-AA. At the same time the kinetic tests exhibit the better efficiency of PESA and MA-AA: PESA>MA-AA>PAAS~HEDP>ATMP~PASP. Therefore, a lot of work is still needed to elaborate

Scale formation in the oil and gas industry, evaporation plants, reverse osmosis desalination processes, steam generators, boilers, cooling water towers and pipes is a serious problem, causing significant plugging of wells, pipe-lines, membranes, and increasing the production expenses [1,2]. 
A widely used technique for controlling scale deposition is an application of chemical inhibitors [1-4]. 
Commonly used commercial antiscalants are represented by organophosphonates and numerous modifications of polyacrylates (PA). 
Among these the organophosphonates are dominating recently at the World market [5]. At the same time phosphorus-based inhibitors are hardly biodegradable and persist for many years after their disposal, which leads to eutrofication problems. Phosphorus discharges are therefore regulated in many countries worldwide, and permissible limits are constantly decreasing. Increasing environmental concerns and discharge limitations have forced the scale-inhibitor chemistry to move toward “green antiscalants” that are readily biodegradable and have minimal environmental impact. Intensive efforts are applied recently to develop the “green” alternatives to organophosphonates and nonbiodegradable polyacrylates [1-4]. Among these novel inhibitors, such chemicals as polymaleates (MA), polyaspartates (PASP), polyepoxysuccinates (PESA), as well as their various derivatives, including co-polymers with PA are the most promising. 
It is important to note, that the new antiscalants should have acceptable levels of performance at a cost-effective dose rate. This requirement raises a problem of reliable tests, which permit a correct “old red” and “novel green” inhibitors efficiency comparison [6]. Indeed, most of the data published on CaCO3 (CaSO4 ) deposition are studied under hardly comparable conditions, e.g., different CaCO3 supersaturationindex, brine composition, temperature, pH, measurement technique, etc. This leads to the quite opposite opinions on the relative Antiscalant’s efficacy, reported by different research groups for one and the same set of reagents proposed for one and the same scale (see [1,7,8] and references there).


The reagent efficiency ranking following NACE Standard gives evidently a preference to phosphonates over polymers: ATMP ~ HEDP > PESA (400-1,500 Da) ~ PASP (1,000-5,000 Da) >PAAS (3,000-5,000 Da) ~MA-AA. Thus, among the studied set of reagents ATMP and HEDP should be expected to become a matter of choice for carbonate scaling. However, an attempt to implement these reagents to evaporation plants gives a sufficiently different ranking. According to τind: PESA~MAAA>PASP>PAAS>HEDP~ATMP The τ1/2 datareveals in turn another sequence: PESA>MAAA>PAAS~HEDP>ATMP~PASP.

Phosphonates are organic compounds and salts of the phosphorous acid. The products are used in cooling water systems, desalination facilities, in the paper and textile industry as well as in detergents and household products. Phosphonates are used as sequestrants / chelating agents. Our phosphonates have a good temperature and hydrolyse-stability and can be used in acidic and alkaline conditions.

More products available upon request.
Tradename    Chemical Description    CAS    Active Content
ATMP    Amino Trimethylene Phosphonic Acid    6419-19-8    min. 50%
HEDP    1-Hydroxy Ethylidene-1,1-Diphosphonic Acid    2809-21-4    min. 60%
HEDP.Na4    1-Hydroxy Ethylidene-1,1-Diphosphonic Acid Tetrasodium Salt    3794-83-0    min. 85%
DTPMP.Na7    Diethylenetriamine Penta(Methylenephosphonic) Acid Heptasodium Salt    68155-78-2    min. 30.5%
DTPMP.Na7    Diethylenetriamine Penta(Methylenephosphonic) Acid Heptasodium Salt    68155-78-2    min. 40%
PBTC    2-Phosphonobutane-1,2,4-Tricarboxylic Acid    37971-36-1    min. 50%


The focus of the portfolio comprises eight different chemical molecules (HEDP, ATMP, DTPMP, EDTMP, HDTMP, HEMPA, PBTC, BHMTMP), which are supplied in numerous different forms. 
Most of the products are offered as various salts – e.g. sodium (Na+), potassium (K+), ammonium (NH4+) – with a different pH value or active content


Amino Trimethylene Phosphonic Acid, ATMP Chemical
Production Info:
The three main raw materials for ATMP production are phosphorous acid, ammonium chloride, and formaldehyde. The first two are added into the reactor and heated and stirred until dissolved completely.

Then, formaldehyde will be dropwise. Phosphorus acid can be from the hydrolysis of PCl3 or the production of other chemicals. If chlorine content needs to be lower than the normal specs, the steam-heating time will be extended.

CAS No.: 6419-19-8

Molecular Formula: N(CH2PO3H2)3

Molecular Weight: 299.05

APPLICATIONS
Phosphonates have been successfully used as additives in industrial water treatment for around 50 years. 
Building on this original application, phosphonates have opened up a very broad spectrum of new chemical-technical applications. 
This is mainly due to their multifunctional properties

as a complexing agent and threshold-active substance,
as efficient dispersing agents in combination with their
excellent hydrolytic and thermal stability.
Phosphonates therefore offer optimum solutions for a large variety of application fields such as detergents and cleaning agents for household and commercial use, industrial water treatment, as additives for oilfield chemicals or the building materials industry. 
Furthermore, phosphonates are also used in the production of paper, metal treatment and cosmetic products.

Washing and Cleaning Agents
Oilfield Chemistry
Water Treatment
Building Materials
Textile and Paper Auxiliaries
Metal Treatment
Cosmetics


Phosphonates are family of chelating compounds and scale forbidder, which by structure has the phosphonic acid group in common. 
Phosphonates are organometallic derivatives of phosphonic acid containing C−PO(OH)2 or C−PO(OR)2 groups where R is alkyl or aryl group. 
Several commercially important compounds like phosphonates, glyphosate, and ethephon which is extensively used as popular plant growth regulator, are derived from phosphonic acids. They are used in household and industrial cleaning products, personal care products, and water treatment additives in various applications. Derivatives of phosphonates like bisphosphonates are accepted drugs for treatment of osteoporosis. In medicinal chemistry, phosphonate is used as stable bioisotere for phosphate, similarly in the antiviral nucleotide analogy, Tenofovir, which is one of the foundations of anti-HIV therapy. In construction sector, phosphonate is used as concrete retarder. The R&D in the construction sector is investigating the use of phosphates as superplasticizers which increase the concrete fluidity and workability.
The increasing demand for the phosphonate as chelating agent in the chemical industry and to synthesize its derivatives is likely to boost the market. 
For instance, when amine group is introduced on the phosphonic acid molecule, it increases the metal binding properties of phosphonate. Phosphonates are effective water softeners which prevents the formation of water-insoluble precipitates. The increasing adoption of phosphonates as water softeners is likely to create positive impact on the market. Additionally, the use of phosphonates and biphosphonates in the treatment of HIV, Hepatitis B, Sudden Oak Death, and others shall foster the market.

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ATMP, Organic Phosphonic Acid in Water Treatment Chemicals

There are many types of organic phosphonic acids, but in their molecular structure, they contain a phosphonic acid group directly attached to a carbon atom. And the molecule may also contain groups such as -OH, -CH2 or -COOH.

The organic phosphonic acid can be classified into a diphosphonic acid tri-phosphonic acid tetra phosphonic acid penta phosphonic acid or the like according to the number of phosphonic acid groups contained in the molecule.

According to the type of molecular structure, the organic phosphoric acid can be further classified into a methylidene phosphonate type, a homocarbo diphosphonic acid type, a hydroxy acid phosphonic acid type, and other atomic phosphonic acid types.

Organic phosphoric acid is a new product developed in the late 1960s. However, it was widely used in circulating cooling water treatment in the 1970s. This is because it has the following advantages.

First, they all have a C-P bond in their molecular structure, and this bond is much stronger than the P-O-P bond in polyphosphate. Therefore, it has good chemical stability, is not easily hydrolyzed, and is resistant to high temperatures. In the use, it does not cause orthophosphoric acid to be overproduced due to hydrolysis.

Second, it has a critical effect like polyphosphate. It is only necessary to use a small amount of organic phosphonic acid to prevent the precipitation of a large amount of calcium carbonate.

In actual use, it has been found that the use of an organic phosphonic acid in combination with a polyphosphate is better than any single species.

In addition to polyphosphate, it also has a good synergistic effect with a variety of agents. Therefore, in practical use, people often choose the compound formula with the best synergy.

In addition to the above advantages, the organic phosphonic acid also has good corrosion inhibition properties at high doses and is a non-toxic or extremely low toxicity agent. Therefore, there is no need to worry about environmental pollution during use.

Amino Trimethylene Phosphonic Acid
ATMP is a commonly used organic phosphonic acid agent in circulating cooling water. It is a corrosion inhibitor and scale inhibitor widely used in the boiler water equipment industry.

After compounding, it has good corrosion inhibition performance and the inhibition rate is more than 98%. Its scale inhibition performance is higher than 90% in hard water.

After mixing with ATMP acid, it can be used for scale inhibition and corrosion inhibition in hot water boilers. It has the advantages of low consumption, corrosion inhibition and good scale inhibition.

The chemical name of ATMP is amino trimethylene phosphonic acid. It has good chemical stability, is not easy to hydrolyze, and is resistant to high temperatures. When used in combination with zinc salts, copolymers, etc., it has good synergistic effects and solubility effects.

This product also has good corrosion inhibition performance at high dosage, and it is a non-toxic, pollution-free agent. This product has good dispersion and scale inhibition performance for calcium carbonate scale.

Water treatment chemicals are an important part of water treatment, and it is particularly important to strengthen the development of water treatment drug formulations with high efficiency and low toxicity green water treatment chemicals.

Purchasing water treatment chemicals cannot be blindly mapped to cheap. Water treatment chemicals are only a small fraction of expensive industrial equipment. So be sure to buy regular manufacturers of water treatment chemicals, professionals are added and processed.

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