SODIUM HYPOPHOSPHITE

Sodium Phosphinate = SHP = SHPP

CAS Number: 7681-53-0
Molecular Weight: 87.98
EC Number: 231-669-9
Linear Formula: NaPH2O2

Sodium hypophosphite (NaPO2H2, also known as sodium phosphinate) is the sodium salt of hypophosphorous acid and is often encountered as the monohydrate, NaPO2H2·H2O. 
Sodium hypophosphite is a solid at room temperature, appearing as odorless white crystals. 
Sodium hypophosphite is soluble in water, and easily absorbs moisture from the air.
Sodium hypophosphite should be kept in a cool, dry place, isolated from oxidizing materials. 
Sodium hypophosphite decomposes into phosphine which is irritating to the respiratory tract and disodium phosphate.
2 NaH2PO2 → PH3 + Na2HPO4
Sodium hypophosphite or sodium phosphinate is the sodium salt of hypophosphorous acid with the formula NaPO2H2. 
Sodium hypophosphite is often encountered as the monohydrate, NaPO2H2·H2O.
The Sodium Hypophosphite is easy to be influenced by raw materials, esprecially Yellow Phosphorus. 
Sodium hypophosphite is used for electroless nickel plating. 
SHP may be used as a reducing agent or antioxidant in chemical processing, as a catalyst in some polymerization reactions, as a stabilizer to prevent degradation of polymers during extrusion or in other heated processing and may be used as a partial fire retardant
SHP is used in pharmaceutical manufacturing, nickel plating, and as a laboratory reagent
Sodium Hypophosphite is also used as a catalyst for polymerization reactions and in the fiber glass industry. 
SHP acts as a stabilizer for polymers during thermal processing and extrusion. 
Sodium Hyposphosphite is a source of electrons used for resin regeneration of Ion Exchange Resins.

Sodium hypophosphite is a white crystalline, hydroscopic property and deliquescent; easy soluble in water and alcohol. 
Sodium hypophosphite will explode when contacting oxidants. 
When heated to a temperature of over 200ºC, it would decompose rapidly and release hydrogen phosphide.
Sodium hypophosphite (NaH2PO2) is a chemical reducer obtained from the reaction of phosphorous with caustic soda and lime. 
Sodium hypophosphite is mainly used in electrochemical nickel plating applications, whitening agent and as catalysts in the fiber-glass industry.

Uses of Sodium hypophosphite:
Sodium hypophosphite is mainly used for electroless nickel plating (Ni-P), with this method, a durable nickel-phosphorus film can coat objects with irregular surfaces, such as in avionics, aviation and the petroleum field.
Sodium hypophosphite is capable of reducing nickel ions in solution to metallic nickel on metal substrates as well as on plastic substrates.
The latter requires that the substrate is activated with fine particles of palladium. 
The resulting nickel deposit contains up to 15% phosphorus.
Sodium hypophosphite can be used as a food additive.

Sodium Hypophosphite is used in formulating many pharmaceutical products. 
SHP is a common reducing agent for metal plating. 
Sodium Hypophosphite is a critical ingredient of electroless nickel plating solutions. 
SHP is used as a water treatment agent and as a meat preservative. 
Sodium Hypophosphite is used to prevent the discoloration of polymers. 
SHP is used to manufacture hypophosphorous acid which has same application with Sodium Hypophosphite. 
Hypophosphorous acid has an advantage of easy implementation in solution.

Applications:
-electroless plating agent: through electroless plating metal surface with corrosion resistance, wear resistance, uniform density, solid nickel phosphorus alloy coating, can      
-replace stainless steel materials, widely used in electronics, machinery, petroleum, chemical, aviation, navigation, food and medicine and other industries.
-Metallize the surface of non-metallic materials such as plastics, ceramics, glass and quartz.
-water treatment, preparation of various industrial preservatives and oil field scale inhibitors.
-food, industrial boiler water additives.
-can be used as a catalyst for chemical reaction, stabilizer.
-It can be used as antioxidant, anti-decolorization agent, dispersant, textile finishing and pharmaceutical industries.

Properties;
Chemical:
Sodium hypophosphite decomposes into phosphine which is highly irritating to the respiratory tract and disodium phosphate.
2 NaPO2H2 → PH3 + Na2HPO4
Sodium hypophosphite has been indicated to react explosively when triturated with chlorates.
Physical:
Sodium hypophosphite is a colorless hygroscopic solid, soluble in water.

Availability:
Sodium hypophosphite is sold by chemical suppliers.
Sodium hypophosphite, like its parent compound hypophosphorous acid, is listed as List I precursor chemical in the United States, as it can reduce elemental iodine to form hydroiodic acid, which is a reagent effective for reducing ephedrine or pseudoephedrine to methamphetamine. 
The compound cannot be freely acquired by the hobby chemist in the United States.

Preparation:
Careful addition of white phosphorus to a hot aqueous solution of sodium hydroxide yields sodium hypophosphite.
P4 + 4 NaOH + 4 H2O → 4 NaPO2H2 + 2 H2
Phosphine is produced as side product. 
Since this gas is very toxic, this reaction must be done outside, away from houses or in a special fumehood, one that can remove harmful gaseous products.

Sodium Hypophosphite Uses:
Electroless Nickel (EN) – Sodium Hypophosphite (SHP) acts as a reducing agent to supply the electrons necessary for the EN process. 
The EN process allows for uniform plating thickness on not only metal objects, but also plastics and ceramics.
Chemical Intermediate – Sodium Hypophosphite used as a raw material in the production of other products, including Hypophosphorous Acid. 
Sodium Hypophosphite may be used in synthetic organic chemistry, especially in deamination via reduction of diazo derivatives.
Reducing Agent – SHP may be used as a reducing agent or antioxidant in chemical processing.
Analytical Reagent – Sodium Hypophosphite can be as use as an analytical reagent.
Polymerization Catalyst – Sodium Hypophosphite used as a catalyst in some polymerization reactions.
Polymer Stabilizer – SHP is used as a stabilizer to prevent degradation of polymers during extrusion or in other heated processing.
Flame Retardant – Sodium Hypophosphite may be used as a partial fire retardant.
Ion Exchange Resin:
SHP will provide a source of electrons in resin regeneration.
Hypophosphorous acid has an advantage of easy implementation in solution.
Sodium Hypophosphite are used in:
-Pharmaceutic aid as antioxidant
-Retrieval of non-ferrous
-Ingredient of electroless plating solutions.
-Water treatment agent
-Meat preservative.
-Prevent the discoloration of polymers
-Production of chemicals.

Sodium Hypophosphite usage:
Sodium Hypophosphite mainly used as a reductant in the chemical plating process. 
A dense and uniform nickel phosphorus film can be obtained on both large equipment and tiny components, as well as articles with complicated external shapes such as convex concave lines or internal walls with deep-hollows. 
Sodium Hypophosphite also used on the surface of non-metals such as plastics, ceramics, glass, Etc. 
The film possesses surface hardness and abrasion resistance. 
Sodium Hypophosphite widely used in electronics, aviation mechanisms, and in petroleum fields. 
Sodium Hypophosphite is used as an interface activator, a M.W. moderator, a thermo-stablizer for synthetic resins.

Sodium Hypophosphite features:
-High quality
-Highly effective
-Air tight packaging
Specifications:
-Formula: NaPO2H2
-Molar mass: 87.98 g/mol
-Density: 800 kg/m³
-Melting point: 90 °C

Sodium hypophosphite is mainly used for electroless nickel plating (Ni-P), with this method, a durable nickel-phosphorus film can coat objects with irregular surfaces, such as in avionics, aviation and the petroleum field.
Properties:
Pearl-luster crystal or white crystal powder, hydroscopic and deliquescent; Easily soluble in water, Pearl-luster crystal or white crystal powder, hydroscopic and deliquescent; Easily soluble in water, reducing agent.
Uses:
Mainly used as the reductant for chemical plating. 
A dense and uniform nickel phosphorus film can be obtained for both large equipment and tiny components, articles with complicated external shape of convex concave lines or internal wall of deep-hollows, the surface of non-metals such as plastic, ceramics, glass and etc, the film possess a good surface hardness and abrasion resistance. 
The product can be widely used in electronics, aviation, mechanism, and petroleum fields. 
Sodium hypophosphite can also be used to prepare various industrial water treatment agents, used as catalyst and stabilizer of chemical reactions, and also used as interface activator M.W. moderater and thermostablizer for synthetic resins and additive for foods, and etc

Trade Name: Sodium hypophosphite monohydrate Industrial Grade 
CAS No.: 10039-56-2
EINECS NO.: 600-090-7
Shelf life: 24 Month
Properties: Colorless monoclinic crystal (or acicular crystal) powder, colorless, odorless, salty, deliquescent, soluble in water, glycerol, alcohol, insoluble in ether. 
Uses:
Sodium hypophosphite is mainly used as reducing agent for electroless plating. 
For large equipment and small objects that cannot be electroplated, or for complex shape with concave convex lines, or for inner wall of deep hole, or for surface hardness and wear resistance, or for surface metallization of plastic ceramics, glass, quartz and other non-metallic materials, dense and uniform Ni-P coating can be obtained, which is better than electroplating. 
Sodium hypophosphite is widely used in electronics, aviation, machinery, petroleum and other industries. 
Sodium hypophosphite can also be used as interface activator, molecular weight regulator and heat stabilizer of synthetic resin. 
In recent years, Sodium hypophosphite is widely used in the field of phosphorus flame retardant and cement admixture, which plays a significant role in improving the quick drying rate and firmness of concrete.

Consumer Uses:
Sodium hypophosphite is used in the following products: coating products, fillers, putties, plasters, modelling clay and cosmetics and personal care products.
Other release to the environment of this substance is likely to occur from: indoor use as processing aid and outdoor use as processing aid.

Uses at industrial sites
SHP is used in the following products: pH regulators and water treatment products, polymers, metal surface treatment products, non-metal-surface treatment products and welding & soldering products.
Sodium hypophosphite has an industrial use resulting in manufacture of another substance (use of intermediates).
Sodium hypophosphite is used for the manufacture of: chemicals, plastic products, rubber products, electrical, electronic and optical equipment, machinery and vehicles, textile, leather or fur, wood and wood products, pulp, paper and paper products and fabricated metal products.
Release to the environment of this substance can occur from industrial use of SHP: as processing aid, as an intermediate step in further manufacturing of another substance (use of intermediates), in processing aids at industrial sites, as processing aid, formulation in materials and in the production of articles.

Product Name: Sodium Hypophosphite
Chemical Name: Sodium hypophosphite monohydrate
Alias: Sodium phosphinate
Chemical Formula: NaH2PO2・H2O
Molecular Weight (Formula Weight): 105.99
TSCA: registered
EINECS: 231-669-9
Description:
Odorless.
Soluble in water, ethyl alcohol and glycerin.
pH: 6-8 (5% water solution).
Appearance:
White crystalline powder
Grade:
Industrial Grade
Quality:    
Appearance: 
White crystal powder
Clarity and color of water (10w/v%) Clear
pH (5w/v%) 6.0-7.0
Na2HPO3 ≦ 0.3%
Cl ≦ 50ppm
SO4 ≦ 100ppm
As ≦ 0.5ppm
Heavy-metal(Pb) ≦ 2ppm
Fe ≦ 1ppm
Ca ≦ 50ppm
NaH2PO2・H2O 102%-105%
Applications:
Reducing agents for electroless plating, Catalyst for synthetic resin

Application:
-Electroless Nickel (EN)
Sodium Hypophosphite (SHP) acts as a reducing agent to supply the electrons necessary for the EN process. 
The EN process allows for uniform plating thickness on not only metal objects, but also plastics and ceramics.
-Chemical Intermediate
Used as a raw material in the production of other products, including Hypophosphorous Acid. 
Sodium Hypophosphite (SHP) may be used in synthetic organic chemistry, especially in deamination via reduction of diazo derivatives.
-Reducing Agent
SHP may be used as a reducing agent or antioxidant in chemical processing.
-Analytical Reagent
Sodium Hypophosphite can be as use as an analytical reagent.
-Polymerization Catalyst
Sodium Hypophosphite (SHP) used as a catalyst in some polymerization reactions.
-Polymer Stabilizer
SHP is used as a stabilizer to prevent degradation of polymers during extrusion or in other heatedprocessing.
-Flame Retardant
Sodium Hypophosphite may be used as a partial fire retardant.
-Ion Exchange Resin.
Sodium Hypophosphite (SHP) will provide a source of electrons in resin regeneration. 
 

About Sodium Hypophosphite:
Helpful information:
Sodium Hypophosphite is registered under the REACH Regulation and is manufactured in and / or imported to the European Economic Area, at ≥ 1 000 to < 10 000 tonnes per annum.
Sodium Hypophosphite is used by consumers, in articles, by professional workers (widespread uses), in formulation or re-packing and at industrial sites.

APPLICATIONS of SHP:
Hypophosphorous acid is the phosphorus oxo acid or hydroxy phosphine oxide, with monobasic character. 
The term phosphinic acid is for the descriptive presentation of derivatives or salts which hydrogen atoms bound to phosphorus are replaced by organic groups, called phosphinates. 
The term hypophosphite is also used for any salt, ester or anion derived from the name of hypophosphorous acid. 
Hypophosphorous acid is a low-melting point compound soluble in water. 
SHP is a powerful reducing agent. 
Hypophosphorous acid and its sodium salt (sodium hypophosphite) are used as powerful reducing agents in various field. 
They are used in:
-Pharmaceutic aid as antioxidant
-Retrieval of non-ferrous
-Ingredient of electroless plating solutions.
-Water treatment agent
-Meat preservative.
-Prevent the discoloration of polymers
-Production of chemicals

SODIUM HYPOPHOSPHITE
Sodium phosphenite
CHEMBL2146115
ANW-56398
AKOS025244065
Q2090740
hypophosphorous acid monosodium salt
phosphinic acid monosodium salt 
phosphinic acid sodium salt (1:1)
phosphinic acid, sodium salt
sodium hydrogen phosphite
sodium hydrogen phosphite (NaH2PO2)
sodium hydrophosphite
sodium phosphinate
Sodium Phosphenite
Sodium Phosphinate
7681-53-0
Phosphinic Acid, Sodium Salt
Sodium Hydrophosphite
Monosodium Hypophosphite
Natriumhypophosphit [german]
Phosphinic Acid Monosodium Salt
Sodium Phosphinate (nah2po2)
Hsdb 6032
Sodium Hypophosphite (nah2po2)
Hypophosphorous Acid Monosodium Salt
Einecs 231-669-9
Phosphinic Acid, Sodium Salt (1:1)
Sodium Hydrogen Phosphite (nah2po2)
Natriumhypophosphit
Sodiumhypophosphite
Ac1q1vc9
Agn-pc-0cf2b9
Ksc917c0t
Agn-pc-0476qi
Chembl2146115
Ctk8b7109
10039-56-2 (monohydrate)
Molport-006-118-952
Siguvturimrfdd-uhfffaoysa-m
Anw-56398
Rl04926
Rtr-024576
An-21819
Kb-259868
Ls-145540
Ft-0653627
Phosphinolate, 1-oxo-, Sodium Salt (1:1)
14529-89-6
15883-32-6
174571-46-1

Natriumhypophosphit is the purest material available commercially and is made to demanding specifications from high purity water, and is subjected to careful quality control testing.

Product Identification
Synonyms: Phosphinic acid, sodium salt, monohydrate; Chemical NA-47
CAS No.: 7681-53-0 (Anhydrous); 10039-56-2 (Monohydrate)
Molecular Weight: 105.99
Chemical Formula: NaH2

Hazards Identification
Emergency Overview:
WARNING! DECOMPOSITION PRODUCES TOXIC FLAMMABLE
PHOSPHINE GAS. 
STRONG REDUCING AGENT. 
MAY BE HARMFUL IF
SWALLOWED OR INHALED. 
MAY CAUSE IRRITATION TO SKIN, EYES

Sodium Hypophosphite (SHPP) properties:
White crystalline, colorless powder in appearance. 
Hydroscopic and deliquescent, easily soluble in water, glycerin and alcohol but not soluble in ether.


Applications of SHP:
-Electroplating
-Electronics
-Automotive
-Water treatment
-Chemical manufacturing

Water Treatment
Sodium Hypophosphite is used in water treatment to reduce the metal ion content in industrial wastewater prior to discharge. 
Sodium hypophosphite is an effective reducing agent for the removal of Nickel, Copper, and Iron. 
Sodium Hyposphosphite is a source of electrons used for resin regeneration of Ion Exchange Resins.

Industrial Applications
In chemical processing, Sodium Hypophosphite is used as a raw material for the production of hypophosphorous acid, as well as, a reducing agent and antioxidant. 
Sodium Hypophosphite is a polymerization catalyst for acrylic acid-based polymers. 
SHP is used as a stabilizer for polymers during extrusion and other thermal processing. 
Sodium Hypophosphite is used in the preparation of fire retardants and may be used as a partial fire retardant. 

Electrochemical Nickel Plating and Electroless Nickel Plating
SHP is used in electrochemical nickel plating and the Electroless Nickel (EN) process. 
The EN process with Sodium Hyposphosphite Monohydrate produces a uniform plating thickness on metals and other materials, such as ceramics and plastics. 
Sodium hypophosphite is widely used as a reducing agent for the Electroless Nickel Plating in the electronics and automotive industry.

Viscosity:
Dynamic viscosity is between 19 and 23 mPa.s (average at 21 mPa.s) at 810 g/L and 3 mPa.s at 50% in concentration.
Decomposition:
When heated to decomposition it emits toxic fumes of phosphorous oxides and sodium oxide.
Sodium hypophosphite decomposes when heated, forming phosphine, a spontaneously flammable gas.

Potential Health Effects
Inhalation:
May cause irritation to the respiratory tract. Symptoms may include coughing and
shortness of breath.
Ingestion:
Not considered a toxic hazard but the ingestion of appreciable amounts may cause
gastrointestinal disturbance. Nausea, vomiting and diarrhea may be experienced.
Skin Contact:
May cause irritation, especially on moist or sensitive areas. May cause moderate
inflammation after prolonged contact.
Eye Contact:
May cause irritation, redness and pain.
Chronic Exposure:
No information found.
Aggravation of Pre-existing Conditions:
Asthma, skin conditions, respiratory conditions. 

FLASH POINT: Not considered to be a fire hazard but forms spontaneously flammable phosphine gas when heated.
STABILITY: Stable under ordinary conditions but explosive in contact with oxidizers.

Inhalation:
Remove to fresh air. 
Get medical attention for any breathing difficulty.
Ingestion:
Induce vomiting immediately as directed by medical personnel. 
Never give anything by mouth to an unconscious person. Get medical attention.
Skin Contact:
Immediately flush skin with plenty of soap and water for at least 15 minutes. 
Remove contaminated clothing and shoes. Wash clothing before reuse. 
Thoroughly clean shoes before reuse. Get medical attention if irritation develops.
Eye Contact:
Immediately flush eyes with plenty of water for at least 15 minutes, lifting upper and lower eyelids occasionally. 
Get medical attention if irritation persists. 

Fire Fighting Measures
Fire:
Not considered to be a fire hazard. 
When heated, may form spontaneously flammable phosphine.
Explosion:
Sodium hypophosphite explodes when titrated with chlorates or other oxidizing agents. 
A thermal explosion will occur if sodium hypophosphite is heated under confinement.
Fire Extinguishing Media:
Use any means suitable for extinguishing surrounding fire.
Special Information:
In the event of a fire, wear full protective clothing and NIOSH-approved self-contained breathing apparatus with full facepiece operated in the pressure demand or other positive pressure mode. 

Accidental Release Measures
Ventilate area of leak or spill. 
Wear appropriate personal protective equipment as specified in Section 8. Spills: Sweep up and containerize for reclamation or disposal.
Vacuuming or wet sweeping may be used to avoid dust dispersal.

Handling and Storage
Store in a cool, dry, ventilated area away from sources of heat, moisture, and incompatible substances. 
Isolate from oxidizing materials. Keep away from all sources of heat, ignition and sparks because even residues of sodium hypophosphite can decompose to form flammable, explosive phosphine gas. 
Do not cut, grind, weld, or drill on or near this container, even when empty, because an explosion can result. 
Containers of this material may be hazardous when empty since they retain product residues (dust, solids); observe all warnings and precautions listed for the product. 

Disposal Considerations
Whatever cannot be saved for recovery or recycling should be managed in an appropriate and approved waste facility. 
Although not a listed RCRA hazardous waste, this material may exhibit one or more characteristics of a hazardous waste and require appropriate analysis to determine specific disposal requirements. 
Processing, use or contamination of this product may change the waste management options. 
State and local disposal regulations may differ from federal disposal regulations. 
Dispose of container and unused contents in accordance with federal, state and local requirements. 

Stability and Reactivity
Stability:
Stable under ordinary conditions of use and storage.
Hazardous Decomposition Products:
Can decompose to form flammable, explosive phosphine gas.
Hazardous Polymerization:
Will not occur. 
Incompatibilities:
Heat, fire. Contact with strong oxidizers may cause an explosion. Sodium hypophosphite
decomposes in hot alkaline solution an liberates toxic and flammable phosphine gas.
Self-reactive explosions can occur when hot sodium hypophosphite solution is
evaporated. 

Type: water-reducing admixture
Colour:    White Crystals
Melting Point: 200c(392f0 Decomposes, Loses Water
Odor: Odorless
CAS No:    7681-53-0(Anhydrous);10039-56-2(Monohydrate)

sodium hypophosphite industrial grade NaH2PO2:
Test Item: Specification%
Sodium Hypophosphate: ≥102%
Sodium phosphite: ≤ 0.2%
sulphate : ≤20mg/kg
chloride: ≤20mg/kg
PH: ≥6.0, ≤8.0
Calcium: ≤20mg/kg
Iron: ≤1.0mg/kg
Ba2+test: approved
liquidity: crystalline
Solubility: Clear solution
Pb: ≤1.0mg/kg
As: ≤1.0mg/kg
Cd: ≤1.0mg/kg
Cr: ≤1.0mg/kg
Appearance: No impurities
Description: Colourless crystalline powder
Assay: 99.0 – 100.3%
Free alkali: Passes test
Arsenic (As): Max. 0.0002%
Calcium (Ca): Max. 0.02%
Iron (Fe): Max. 0.001%
Chloride (Cl): Max. 0.02%
Sulphate (SO4): Max. 0.02%
Melting point/Freezing point (˚C): 90˚C
Density ( g/cm3): 0.8
Solubility in water (% weight): Soluble in water

Sodium hypophosphite monohydrate is used for electroless nickel plating agent and water treatment agent. 
Sodium hypophosphite monohydrate is also used in petroleum fields. Further, it is used as a food additive. 
In addition, Sodium hypophosphite monohydrate reduces nickel ions in solution to metallic nickel on metal substrates as well as on plastic substrates.

Chemical formula: NaPO2H2
Molar mass: 
87.98 g/mol (anhydrous)
105.99 g/mol (monohydrate)
Appearance: white solid
Density: 0.8 g/cm3 (monohydrate)
Melting point: 310 °C (590 °F; 583 K) (monohydrate)
Solubility in water: soluble
CAS Number: 
7681-53-0
10039-56-2 (monohydrate)
ChemSpider: 21241942 
ECHA InfoCard: 100.028.791 
PubChem CID: 16129646
RTECS number: SZ5640000 (monohydrate)
UNII: 8TU1537O43
4VN69WUP7N (monohydrate)
CompTox Dashboard (EPA): DTXSID30873901 
Other anions: 
Sodium phosphite
Monosodium phosphate
Disodium phosphate
Trisodium phosphate
Other cations:
Potassium hypophosphite
Related compounds: 
Hypophosphorous acid
Quality Level: 200
assay: ≥99%
form: powder, crystals or chunks
solubility: 
water: 100 mg/mL, clear, colorless
SMILES string: O.Na+.O-PH2=O
InChI: 1S/Na.H3O2P.H2O/c;1-3-2;/h;3H2,(H,1,2);1H2/q+1;;/p-1
Inchi Key: PLZNPHDJGFDNRM-UHFFFAOYSA-M
Physical and Chemical Properties
Appearance: White crystals.
Odor: Odorless.
Solubility: 100 g in 100 g of water.
Specific Gravity: No information found.
pH: No information found.
% Volatiles by volume @ 21C (70F): 0 
Molecular Weight: 85.962331 g/mol
Molecular Formula: NaO2P
Hydrogen Bond Donor Count: 0
Hydrogen Bond Acceptor Count: 2
Rotatable Bond Count: 0
Exact Mass: 85.95336 g/mol
Monoisotopic Mass: 85.95336 g/mol
Topological Polar Surface Area: 40.1 A^2
Heavy Atom Count: 4
Formal Charge: 0
Complexity: 13.5
Isotope Atom Count: 0
Defined Atom Stereocenter Count: 0
Undefined Atom Stereocenter Count: 0
Defined Bond Stereocenter Count: 0
Undefined Bond Stereocenter Count: 0
Covalently Bonded Unit Count: 2

What is Sodium Hypophosphite monohydrate?
Sodium Hypophosphite monohydrate is an odourless colourless crystalline solid that is very soluble in water and alcohol. 
Sodium Hypophosphite monohydrate readily absorbs moisture from the air. 
Sodium Hypophosphite monohydrate is the sodium salt of hypophosphorous acid and a strong reducing agent. 
Sodium hypophosphite monohydrate is mainly used for electroless nickel plating where ot forms a durable nickel-phosphorus film that can be used to coat objects with irregular surfaces.

Appearance: Colorless crystalline powder
Assay: Min 99%
Water (by KF): 5 - 18%
Alkalinety or acidity reacting impurities: Passes test
Arsenic (As): Max 0.0005%
Calcium (Ca): Max 0.02%
Iron (Fe): Max 0.001%
Heavy metal (as Pb): Max 0.001%
Chloride (Cl): Max 0.02%
Phosphate, Phosphite (as PO4): Passes test
Sulphate (SO4): Max 0.2%

Hypophosphorous acid monosodium salt
Monosodium hypophosphite
Natriumhypophosphit
Phosphinic acid monosodium salt
Phosphinic acid, sodium salt
Phosphinic acid, sodium salt (1:1)
Sodium hydrogen phosphite (NaH2PO2)
Sodium hydrophosphite
Sodium hypophosphite
Sodium hypophosphite (NaH2PO2)
Sodium phosphinate
Sodium phosphinate
sodium phosphinate
Sodium phosphinate (NaH2PO2)
phosphinic acid, sodium salt
SODIUM HYPOPHOSPHITE
Sodium Hypophosphite
Sodium hypophosphite
sodium hypophosphite
SODIUM HYPOPHOSPHITE
Sodium hypophosphite

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