Calcium hypophosphite is used as flame retardant, animal feed food additive, with high purity and obvious effect. It can be synthesized by sodium hypophosphite and calcium chloride, and the decomposition temperature of calcium hypophosphite reaches 300 degrees, which has better flame retardant effect in some plastics, such as PA6. If calcium hypophosphite is not stored properly, it may absorb moisture and caking, and the caking phenomenon can be prevented by adding chemical additives.

Basic information

English name: Calcium hypophosphite

Chemical formula: Ca(H2PO2)2

CAS NO.: 7789-79-9

EINECS: 232-190-8

Molecular weight: 170.06

Properties: white crystalline powder, soluble in water, insoluble in alcohol. The solubility of calcium hypophosphite in water at room temperature is 16.7g/100g water. Its aqueous solution shows weak acidity.

Main index

Ca(H2PO2)2≥98.0%

As≤0.0004%

Pb≤0.0001%

Ba≤0.005%

Water insoluble matter≤0.5%

Appearance: white crystal

Use of Calcium Hypophosphite

Calcium hypophosphite can be used as flame retardant, chemical plating, food additives and animal nutrients, used in the manufacture of pharmaceuticals, and can be used as antioxidants, analytical reagents.

Packing and transportation

Net weight 25kg kraft paper bag lined with polyethylene bag. The product should be sealed and stored in a dry, light-proof and cool place.

Transportation Information

UN Dangerous Goods Code

European Land Transportation Dangerous Goods Code: 3178 International Sea Transportation Dangerous Goods Code: 3178 International Air Transportation Dangerous Goods Code: 3178

UN shipping name

european land transport hazard code: flammable solid, inorganic, n.o.s. (calcium phosphinate)

International Shipping Hazard: FLAMMABLE SOLID, INORGANIC, N.O.S. (Calcium phosphinate)

International Air Transport Hazard Class: Flammable solid, inorganic, n.o.s. (Calcium phosphinate)

Transportation Hazard Classes

European Land Transportation Hazard Class: 4.1 International Maritime Transportation Hazard Class: 4.1 International Air Transportation Hazard Class: 4.1

Parcel groups

European Land Transport Hazard Code: II International Maritime Transport Hazard Code: II International Air Transport Hazard Code: II

Environmental hazards

European Land Transportation Dangerous Goods: No International Maritime Transportation Dangerous Goods

Marine pollutant (Yes/No): No

International Air Transport Hazard: No

Special warnings for users

No data available

The price of calcium hypophosphite is very closely related to the price of yellow phosphorus and the price of sodium hypophosphite, with regular fluctuations from time to time. The use of calcium hypophosphite has only begun to be recognized in recent years, and more roles are still being researched and developed.