HPMA (Hydrolyzed Polymaleic Anhydride)


Synonyms
Hydrolyzed Polymaleic Anhydride 
HPMA
Polymaleic acid 


HPMA is antiscalant for Calcium Carbonate

HPMA enables excellent calcium carbonate control in the water treatment systems.

HPMA provides excellent calcium carbonate crystal distortion results in non-adherent crystals.
HPMA Maintains clean heat exchangers even in high calcium waters. 


HPMA is excellent scale inhibitor for carbonates and sulfates, especially under stressed conditions

Polymaleic acid (CAS NO.26099-09-2) is the effective scale inhibitor which mainly used for low pressure boilers, industrial cooling water system, oilfield water pipeline, crude oil dehydration.

Homopolymer of Polymaleic Acid is a high performance scale inhibitor specifically developed to help prevent both calcium carbonate and calcium sulfate salt deposits in water systems. 
The unique feature of Homopolymer of Polymaleic Acid is the improved overall performance for inhibiting these calcium scales over conventional polymaleic acids, acrylate polymers and phosphonates. 
Homopolymer of Polymaleic Acid will also help prevent the formation of other scales such as calcium oxalate. 

Homopolymer of Polymaleic Acid will also disperse colloids and fine particles such as clay. 

Performance Benefits 
• General purpose scale inhibitor/dispersant—effective on a variety of foulants and scale formers (calcium oxalate, calcium carbonate, calcium sulfate and silt). 
• Exceptional calcium carbonate inhibition, performs in high alkalinity/hardness and high total dissolved solids systems and provides longer lasting efficacy than conventional polyacrylates. 
• Excellent calcium sulfate inhibition, performs in high and low pH water systems. 
• Very effective inhibition of barium sulfate. 
• Enhances inhibition properties in blends with high performance dispersant polymers (e.g., ACUMER 2000 polymer and ACUMER 3100 polymer). 
• Stable at all pH levels. Chemical Mode of Homopolymer of Polymaleic Acid is a modified acrylic homopolymer with selected molecular weight around 2000 in order to optimize the following properties: 
• Anti-precipitation—Homopolymer of Polymaleic Acid will increase solubility of precipitating salts by threshold effect. This allows reduction of precipitation of inorganic salts (carbonates, phosphates, sulphates of Ca and Mg) in the boiler/cooling circuits. 
• Crystal distortion—This polymer gets entrapped into crystal lattices, helping to prevent their growth and facilitating their breakage. This minimizes adherence of salts on surfaces. 
• Dispersing properties—This polymer is a good dispersant for sludge/clay and will help to prevent their redeposition on surfaces.

HPMA is a high performance scale inhibitor specifically developed to help prevent both calcium carbonate and calcium sulfate salt deposits in water systems. 
HPMA will also help prevent the formation of other scales such as calcium oxalate. 

HPMA will also disperse colloids and fine particles such as clay. 

Performance Benefits of HPMA
• HPMA is general purpose scale inhibitor/dispersant—effective on a variety of foulants and scale formers (calcium oxalate, calcium carbonate, calcium sulfate and silt). 
• HPMA has exceptional calcium carbonate inhibition, performs in high alkalinity/hardness and high total dissolved solids systems and provides longer lasting efficacy than conventional polyacrylates. 
• HPMA has excellent calcium sulfate inhibition, performs in high and low pH water systems. 
• HPMA has very effective inhibition of barium sulfate. 
• HPMA enhances inhibition properties in blends with high performance dispersant polymers (e.g., ACUMER 2000 polymer and ACUMER 3100 polymer). 
• PMA remains stable at all pH levels. 

Chemical Mode of Action 
HPMA is a modified acrylic homopolymer with selected molecular weight around 2000 in order to optimize the following properties: 
• Anti-precipitation—HPMA polymer will increase solubility of precipitating salts by threshold effect. This allows reduction of precipitation of inorganic salts (carbonates, phosphates, sulphates of Ca and Mg) in the boiler/cooling circuits. 
• Crystal distortion—This polymer gets entrapped into crystal lattices, helping to prevent their growth and facilitating their breakage. This minimizes adherence of salts on surfaces. 
• Dispersing properties—This polymer is a good dispersant for sludge/clay and will help to prevent their redeposition on surfaces.


Various industries use cooling circuits to remove heat by absorbing it with circulating water systems. 
Recirculating water can build up impurities that could lead to the precipitation of salts. 
The precipitation of salts and other particles can accumulate on equipment surfaces, resulting in reduced heat transfer efficiency, and higher operation and maintenance costs. 
HPMA scale inhibitors can help prevent the formation of scale in recirculating cooling systems, boilers, and evaporators. 
HPMA can keep salts dispersed to prevent deposition and can modify the structure to make scale less tenacious and durable. 
HPMA is effective on particulate matter containing calcium carbonate, calcium sulfate, calcium phosphate, silica and silicate, silt and iron, reducing their adhesion to heat transfer surfaces.

CAS No 26099-09-2

Mayoquest 3000
Belclene 200
Belclene 200 (hydrolyzed polymaleic anhydride, Mw 400-800)

EC / List no.: 607-861-7
CAS no.: 26099-09-2

Chemical Description: Homopolymer of Polymaleic Acid 

Polymaleic Acid is the homopolymer of Maleic Acid. It is a very efficient calcium carbonate antiscalant showing excellent performance in high temperature as well as high alkaline cooling water systems. The product is stable in presence of chlorine or other oxidizing biocides. Due to its good scale inhibition and high temperature tolerance properties, Polymaleic Acid is used in water desalination plants. It does also perform as corrosion inhibitor when being combined with zinc salts.

Synonyms: HPMA; Hydrolysis Product of Polymaleic Anhydride; Acumer 4200; Belclene 200; Belclene 200LA; DP 3328; Maleic acid homopolymer; Nonpol PMA 50W; SH 150
CAS No.: 26099-09-2

BELCLENE 2OO 
HPMA has very good performance of scale inhibitor and dispersant, widely used in industrial cooling water, boiler water, oil field injection, sugar mill evaporator, reverse osmosis, desalination applications, etc. especially in those of critical water condition such as high-temperature, high alkalinity, high hardness.

Belclene 200

Polymaleic acid

Belclene 200 has been developed as a calcium carbonate inhibitor in industrial water systems and other related applications.
Belclene 200 is not affected by chlorine or other oxidising biocides under normal use conditions.
Test for compatibility with long chain nitrogen compounds, aliphatic amine and quaternary ammonium compounds.

Appearance: clear amber liquid
Odour: slight
Solids content: 47-53% w/w
Specific gravity: 1.16-1.19
pH (undiluted): < 2
Viscosity at 25'C: 12-30 cPs (10-25 cSt)
Boiling point range: 100-102'C (212-214'F)
Freeze point range: -5 to -12'C (10-23'F)


HPMA is the most effective calcium carbonate antiscalant for high hardness, high alkalinity, and high temperature cooling water systems in the industry.

Application:
HPMA provides the formulator:
Superior calcium carbonate scale inhibition in severe service conditions, where the LSI approaches 3.0
Both threshold inhibition and crystal modification
Better results for phosphonate based programs than when phosphonates used alone
Easy on-site testing using Bel-Trak test kit

Benefits:
HPMA can be used as a stand-alone calcium carbonate inhibitor or as a multifunctional formulation support agent in cooling water formulations and other related applications. 


HPMA IS POLYMALEIC ACID BASED DISPERSANT FOR FORMULATION OF ANTIFOULING AGENTS IN REFRIGERATION CIRCUITS, INDUSTRIAL EVAPORATORS AND CIRCUITS. 

Synonyms: Poly (maleic acid); Polymaleic Anhydride hydrolysed; 2-Butenedioic acid (2Z)-, homopolymer; 2-Butenedioic acid (Z)-, homopolymer; Maleic acid homopolymer

​Polymaleic Acid is the homopolymer of Maleic Acid. It is a very efficient calcium carbonate antiscalant showing excellent performance in high temperature as well as high alkaline cooling water systems. The product is stable in presence of chlorine or other oxidizing biocides. Due to its good scale inhibition and high temperature tolerance properties, Polymaleic Acid is used in water desalination plants. It does also perform as corrosion inhibitor when being combined with zinc salts.

Applications:

Cooling water systems / industrial water treatment
Concrete additive
Water desalination
Crude oil evaporation
 


Equivalent of Dequest P9000
Structural Formula:
CCCOOHH*COOHHnCC*HHmCCOOO

Properties: HPMA is a low molecular weight polymeride, with average molecular weight 400-800. 
No toxicity, soluble in water, high chemical and thermal stability, decomposed temperature above 330℃. HPMA has obvious threshold effect under high temperature (350℃) and high pH(8.3)level, suitable to be used in alkaline water system or built with agents. 
HPMA has good scale inhibition against carbonate and phosphate scales under temperature 300℃ with effective time as long as 100 hours. 
Due to its good scale inhibition and high temperature tolerance properties, HPMA is widely used in desalination plant of flash vaporization equipment, low pressure boiler, steam locomotive, crude oil evaporation, petroleum pipeline, and industrial circulating cool water systems. 
In addition, HPMA has good corrosion inhibition effect when used together with zinc salt. HPMA can also used as additives for cement.

Polymaleic acid is the homopolymer of maleic acid. 
Hydrolyzed Polymaleic Anhydride  is very stable in presence of chlorine and other oxidizing biocides. 
Hydrolyzed Polymaleic Anhydride  has good scale inhibition and high temperature resistance properties. 
Therefore, it can be used in the water desalination plants. 
Hydrolyzed Polymaleic Anhydride  is also an excellent calcium carbonate antiscalant upon high temperature and in the high alkaline cooling water systems. 
Hydrolyzed Polymaleic Anhydride  addition, it can be used in combination with zinc salts as a corrosion inhibitor. 
Hydrolyzed Polymaleic Anhydride  can also be used as concrete additive and for crude oil evaporation. 
HPMA can be manufactured through the polymerization of maleic anhydride I an aromatic hydrocarbon upon 60° to 200° C.


Specification:
items
index
Appearance
Pale yellow to umber transparent liquid

Solid content %: 48.0min

Bromine value mg/g: 80.0max
Average molecular weight: 450min
pH (1%water solution): 2.0-3.0
Density (20℃)g/cm3: 1.18min

Usage:
HPMA is usually used together with organic phosphonate at dosage of 1-15ppm for circulating cool water system, oilfield fill water, crude oil dewatering and low-pressure boilers. 
HPMA has good scale inhibition (98%) and scale stripping properties. When used together with zinc salts, it can

2-Butenedioic acid (2Z)-, homopolymer

IUPAC names
(2R,3R)-2,3-dimethylbutanedioic acid
2-Butenedioic acid (2Z)-, homopolymer
2‐Butenedioic acid (2Z)‐, homopolymer
ACIDO POLIMALEICO
Hydrolyzed Polymaleic Anhydride
POLY(MALEIC ACID)
Poly(maleic acid)
poly(maleic acid)
Polymaleic acid
polymaleic acid

Other names
HPMA
Hydrolyzed Polymaleic Anhydride
Hydrolyzed Polymaleic Anhydride (HPMA)
MONOPOTASSIUM PHOSPHITE

•    POLY(MALEIC ACID)
•    (z)-2-butenedioic acid homopolymer
•    poly(maleicacid)(50%aq)
•    MALEIC ACID POLYMER
•    hydrolyzed polymaleic anhydride
•    Hydrolysed Polymaleic Anhydride
•    PolymaleicacidAq
•    Maleic Acdi ( homopolymer )
•    2-Butenedioic acid (2Z)-, homopolymer
•    (50% AQ)
•    HPMA
•    PMA
•    maleic acid homopolymer
•    Hydrolized polymaleic anhydride
•    2-Butenedioicacid(Z)-,homopolymer
•    Hydroxypropylmethacrylamide
•    Maleic acid resin
•    26099-09-02
•    HoMopolyMer of Maleic Acid(HPMA)
•    POLYMALEIC ACID (PMA)
•    Poly(maleic acid) HPMA
•    48% or 50% Polymaleic acid HPMA
•    26099-09-2
•    C4H404n
•    C4H4O4n
•    Water treatment
•    Polymers

Synonyms    
Polymaleicacid Aq
Hydrolysed Polymaleic Anhydride
Hydrolyzed Polymaleic Anhydride
Hydrolized polymaleic anhydride
HPMA
Polymaleic Acid

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Description: A 50% aqueous solution of polymaleic acid, 200/HPMA is a low-cost alternative to products like Belclene 200, Buckman BSI-97 and Mayoquest 3000 for inhibiting calcium carbonate scale in industrial water treatment systems. 


Examples of PMA include Belclene 200, Mayoquest 3000, Acumer 4210, and Polycol 100, Buckman BSI-97 

APPLICATIONS: HPMA is a very effective anti-scalant for use in industrial water treatment programs. 
HPMA is not affected by oxidizing biocides and is particularly useful in very high hard water environs. 
HPMA has excellent thermal stability in high temperature applications


Ammonium Dimolybdate             
Ammonium Heptamolybdate            
Molybdenum Trioxide (MoO3)        
Sodium Molybdate Anhydrous            
Sodium Molybdate Dihydrate Technical and ACS Grades        
Sodium Molybdate Solution 35%            
Ammonium Metatungstate          
Calcium Tungstate Anhydrous              
Sodium Tungstate Anhydrous             
Sodium Tungstate Dihydrate            

Amines
Cyclohexylamine    N/A        
DEAE (Diethylaminoethanol)    Pennad 150    
DEHA (Diethylhydroxylamine)    Pennstop 85        
Methoxypropylamine (MOPA)        
Morpholine        
Azoles
Benzotriazole, granules or powder    Cobratec 99; Wintrol B-G/N, Belclene 510; Preventol BZT        
Sodium Benzotriazole 40% Solution    Cobratec 40S, Wintrol B-40Na        
Sodium MBT 50%    Wintrol MBT-50Na        
Sodium Tolyltriazole 50%    Cobratec TT-50-S; Wintrol T-50Na; Belclene 515; Preventol CI 7-50    


    
Tolyltriazole Granular, Beads, Powder    Cobratec TT-100; Wintrol T, Belclene 511; Preventol CI 7-100        


Phosphonates
ATMP/NorthQuest 6400 (Amino Tri-methylene phosphonic acid)    Belclene 640, DeQuest 2000, Qquest A50, Unihib 305WT, Mayoquest 1320, Briquest 301-50A, Buckman Phos 2, Codex 8503        
ATMP-Na5/NorthQuest 6405 (Amino Tri-methylene phosphonic acid, Pentasodium Salt)    Mayquest 1400N        
DTPMPA/NorthQuest 6200 [Diethylenetriamine Penta (methylenephosphonic acid)]    PCI 1500, MayQuest 1860    
DTPMPA-Na7/NorthQuest 6207 [Heptasodium Salt of Diethylene triamine Penta (methylene phosphonic acid)]    Belclene 635    
HEDP/NorthQuest 6600
(1-Hydroxyethylidene-1,1-Diphosphonic Acid)    Belclene 660, DeQuest 2010, Qquest H60, Cquest H60, Mayoquest 1500, Briquest ADPA60, Unihib 106T, Buckman Phos 6, Codex 661        
HPAA/NorthQuest 6700
(Hydroxyphosphono Acetic Acid)    Belcor® 575        
Stabilized HPAA/NorthQuest 575
(Stabilized Hydroxyphosphono Acetic Acid)    Belcor® 575        
PAPEMP/NorthQuest 6300    Mayoquest 2200        
PBTC/NorthQuest 6500
(2-Phosphonobutane-1,2,4-tricarboxylic Acid)    Bayhibit AM, Belclene 650, DeQuest 7000, Q-QP50, Cquest P50, Mayoquest 2100, Buckman Phos 9        

Polymers  

NORTHQUEST 161 (PCA 50%)
(Phosphinocarboxylic acid)    Belsperse 161, Mayosperse 5000        
NORTHQUEST 200 (HPMA)
(Homopolymaleic Acid)    Belclene 200; Buckman BSI-97, Mayoquest 3000, Optidose 4210         
NORTHQUEST 283 (CPMA)
(Copolymermaleic Acid)    Belclene 283, Callaway 3230B, Mayoquest 4000        
NORTHQUEST 374 / TP-TL
(Suphonated styrene/maleic polymer)    AkzoNobel Versa TL-4        
NORTHQUEST 400
(Sulphonated phosphino carboxylic acid copolymer)    Belclene 400        
NORTHQUEST 499
(Carboxylate/sulphonate/maleic terpolymer)    Belclene 499        
NORTHQUEST 599    VersaFlex 1        
NORTHQUEST 780    BSI 78        
NORTHQUEST 1000
(Polyacrylic Acid)    Acumer 1000        
NORTHQUEST 1050
(Acrylic Acid homopolymer)    Acumer 9400        
NORTHQUEST 2000
(Carboxylate/Sulfonate copolymer)    Acumer 2000 
NORTHQUEST 2050
(AA/acrylamide copolymer)    Buckman BSI 75        
NORTHQUEST 2055
(AA/acrylamide copolymer)    Buckman BSI 82        
NORTHQUEST 2070
(AA/acrylamide Co-Polymer)    Buckman BSI 84        
NORTHQUEST 2100
(Carboxylate/Sulphonate copolymer)    Acumer 2100, AkzoNobel AR 546    
NORTHQUEST 2880
(Phosphonocarboxylic Acids Mixture)    Bricorr 288, Mayoquest 2088        
NORTHQUEST 3100
(AA/AMPS non-ionic terpolymer)    Acumer 3100        
NORTHQUEST 3150    Acumer 3100        
NORTHQUEST 3540    Sokalan CP 5, ACUSOL 505N        
NORTHQUEST 3610    BSI 361         
NORTHQUEST 4100 (Sodium Polyaspartate)    PCI 440, Baypure 100DS         
NORTHQUEST 4367 (Phosphino Carboxylic Maleic Polymer Blend)    Accusol BSI 338         
NORTHQUEST 4450 (Homopolymer of Acrylic Acid)    Accusol 445N, 402N         
NORTHQUEST 5000
(Carboxylate/Sulphonate/maleic terpolymer)    Acumer 5000, AkzoNobel AR 540        
NORTHQUEST 5752    Carbosperse K-752        
NORTHQUEST 5798    Carbosperse K-798        
NORTHQUEST 6000    VersaFlex SI        
Dry Polymers and Phosphonates 
NORTHQUEST 5410 DRY    Acusol 445ND    
NORTHQUEST 5420 DRY    Dry AA/AMPS, like NQ2000    
NORTHQUEST 5430 DRY    Non-ionic terpolymer, like NQ3000    
NORTHQUEST 5450 (5000 DRY)    Acumer 5000     
NORTHQUEST 5499 (NQ599 DRY)    VersaFlex 1     
NORTHQUEST 5660 (DRY HEDP)    DRY DeQuest 2010, Belclene 660, Codex 661        
Miscellaneous Chemicals
NORTHQUEST EDTA XL (High purity EDTA Solution - low NTA)    Versene 100XL        
EDTA 39% Solution    Versene 100         
NORTHQUEST 5573 (Sodium Lignosulfonate Powder)    Maracell XE, Marasperse N22


DEQUEST P is a range of polymers specifically designed for combination with DEQUEST phosphonates in industrial water treatment applications. 
DEQUEST P 9000, P 9200 and P 9300 are effective on calcium carbonate, calcium sulphate, magnesium hydroxide and calcium phosphate scales. 
DEQUEST P9300 finds its use as a dispersant for specific corrosion inhibition programs for industrial cooling water treatment. 
DEQUEST P9400 find its effective uses in enhance zinc based cooling water treatment performance. And is excellent Calcium Carbonate and Calcium Oxalate inhibition at alkaline condition of P&P mills as well as digesters scale control in pulp mills. 
DEQUEST P9500 is excellent CaCO 3 inhibition and silica dispersion. Effective Calcium Phosphate inhibition and iron oxide/silt dispersion. Good corrosion protection for mild steel.


Dequest P9000 is described as a Polymaleic Acid (CAS-26099-09-02) in aqueous solution that is used as an antiscalant in industrial water systems and for scale control in sea water distillation plants.

Belclene 710;Belclene 200LA;Dequest P 9000;Bel 200 premix;2-Butenedioic acid (Z)-, homopolymer;Nonpol PMA 50W;Accent T 1107;Nonpol PWA 50W;SH 150;DP 3328;Maleic acid, polymers (8CI);2-Butenedioic acid (2Z)-, homopolymer;Poly(maleic acid);Aron A 6510;Acumer 4200;Maleic acid homopolymer;Belclene 200


DP 3328;
Belclene 200;
Maleic acid homopolymer;
Acumer 4200;
Aron A 6510;
Poly(maleic acid);
2-Butenedioic acid (2Z)-, homopolymer;
Maleic acid, polymers (8CI);
Belclene 710;
SH 150;
Nonpol PWA 50W;
Accent T 1107;
Nonpol PMA 50W;
2-Butenedioic acid (Z)-, homopolymer;
Bel 200 premix;
Dequest P 9000;
Belclene 200LA;


 

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