Ammonium hypophosphite Chemical Properties

Melting point:

155-160 °C

Density 

1.634 [CRC10]

solubility 

very soluble in H2O; slightly soluble in ethanol; insoluble in acetone

form 

white hygroscopic crystals

color 

white hygroscopic crystals, crystalline

Water Solubility 

1000 g/L

Merck 

13,530

InChIKey

ZRDXIILBYDTYOA-UHFFFAOYSA-N

CAS DataBase Reference

7803-65-8(CAS DataBase Reference)

EPA Substance Registry System

Ammonium hypophosphite (7803-65-8)

Safety Information

Hazard Codes 

Xi

Risk Statements 

36/37/38

Safety Statements 

26-36

WGK Germany 

3

HS Code 

28351000

Hazardous Substances Data

7803-65-8(Hazardous Substances Data)

MSDS

• Language:English Provider:Ammonium hypophosphite
• Language:English Provider:ACROS
• Language:English Provider:SigmaAldrich

Ammonium hypophosphite Usage And Synthesis

Chemical Properties

white crystals

Uses

As catalyst in polyamide manufacture.

General Description

White crystalline solid. Sinks and mixes with water.

Air & Water Reactions

Water soluble. Ammonium hypophosphite liberates spontaneously flammable phosphine at about 240°C [Mellor 8:880 1946-47].

Reactivity Profile

Ammonium hypophosphite liberates spontaneously flammable phosphine at about 240°C [Mellor 8:880 1946-47]. Some inorganic materials, such as hypophosphites, tend to form explosive mixtures with perchloric acid when hot [Analyst 84:215 1959].

Hazard

Evolves flammable and toxic fumes on heating.

Health Hazard

Non-toxic or low toxicity unless heated to decomposition (240°C).

Flammability and Explosibility

Not classified

Purification Methods

Crystallise it from hot EtOH.

Ammonium hypophosphite(7803-65-8)Related Product Information

• Calcium hypophosphite
• Ammonium acetate
• Trimethyl phosphite
• Sodium hypophosphite monohydrate
• Molybdic acid
• Dimethyl phosphite
• Diethyl phosphite
• Ammonium carbonate
• TRI-AMMONIUM ORTHOPHOSPHATE
• AMMONIUM MAGNESIUM PHOSPHATE HEXAHYDRATE
• Tetrabutylammonium phosphate
• Ammonium polyphosphate
• Orthophosphorus acid
• Ammonium hydroxide
• Ammonium chloride
• Ammonium dihydrogen phosphate
• Ammonium formate
• Ammonium alcohol polyvinyl phosphate