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Calcium hypophosphite

CAS No.7789-79-9
Chemical Name:Calcium hypophosphite
CBNumber:CB2291738
Molecular Formula:Ca(H2PO2)2
Formula Weight:170.05
MOL File:7789-79-9.mol

Calcium hypophosphite Property

Melting point decomposes [ALF93]
Boiling point 480℃[at 101 325 Pa]
Density 2.243[at 20℃]
solubility soluble in H2O; insoluble in ethanol
form white monoclinic crystals
pka 12.6[at 20 ℃]
color white monoclinic crystals, crystalline
Water Solubility Soluble in water. Practically insoluble in alcohol. Slightly soluble in glycerol
Sensitive Hygroscopic
Merck 14,1675
InChIKey XJPMAXXEWYLDCQ-UHFFFAOYSA-L
CAS DataBase Reference 7789-79-9(CAS DataBase Reference)
Substances Added to Food (formerly EAFUS) CALCIUM HYPOPHOSPHITE
SCOGS (Select Committee on GRAS Substances) Calcium hypophosphite
FDA UNII CUI83R2732
EPA Substance Registry System Calcium hypophosphite (7789-79-9)

Safety

Hazard Codes :F
Risk Statements :11
Safety Statements :7-15
RIDADR :UN 3180 4.1/PG 2
WGK Germany :3
TSCA :Yes
HazardClass :4.1
Hazardous Substances Data :7789-79-9(Hazardous Substances Data)

NFPA 704:

	2
2		1

Hazard and Precautionary Statements (GHS)

Symbol(GHS)
Signal wordDanger
Hazard statements H228
Precautionary statements P240-P241-P280-P370+P378a-P210

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Brand: ottokemi
Product number: C 1482
Product name : Calcium phosphinate
Purity:
Packaging: 500gm
Price: ₹1602
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Product number: C 1482
Product name : Calcium phosphinate
Purity:
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Brand: ottokemi
Product number: C 1438
Product name : Calcium hypophosphite, 99%
Purity:
Packaging: 500gm
Price: ₹1602
Updated: 2022/05/26
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Brand: ottokemi
Product number: C 1438
Product name : Calcium hypophosphite, 99%
Purity:
Packaging: 5kg
Price: ₹12006
Updated: 2022/05/26
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Calcium hypophosphite Chemical Properties,Usage,Production

Description Calcium hypophosphite has the molecular formula of Ca(H2PO2)2 and the molecular weight of 170.0631 g/mol. This salt can be prepared by the aqueous reaction of the carbonate or oxide with H3PO2:
CaO + 2H3PO2 ? Ca(H2PO2)2
The salt is soluble in water (20 g/100 ml at 20°C) so that the solution must be evaporated to obtain crystals. Ca(H2PO2)2 has the CAS number of 7789-79-9 and the density of 1.59 g/cm³. It is composed of white square monoclinic crystalswhich are water soluble. It is insoluble in alcohol or ether.When heated to about 305°C, it disproportionates, forming calcium phosphate and phosphine:
Ca(H2PO2)2 + heat ? CaHPO3 + PH3
Chemical Properties white monoclinic, prismatic crystal(s) or granular powder(s); used as a corrosion inhibitor and in medicine [MER06] [HAW93]
Physical properties Calcium hypophosphite is relatively soluble in water, and when added to a solution of sodium hypophosphite, forms a double salt. Crystals were obtained by slow evaporation of the solution to form dodecahedra with well-developed {110} faces. The crystal structure of CaNa(H2PO2)3 belongs to the cubic system with space group, P213, Z = 4 and a = 9.721?. The structure consists of two kinds of octahedral groups, one with a calcium atom and the other with a sodium atom. Each atom of the hypophosphite ions is coordinated to each one of the calcium and sodium atoms to form the octahedral. This structure is, in general, typical of the salts of hypophosphorous acid.
Calcium hypophosphite is readily available commercially since its main usage, both industrially and in Research, has proven to be as a source of hypophosphite anions to form other hypophosphites.
Uses As corrosion inhibitor; in nickel plating. Pharmaceutic aid (retards oxidation of ferrous salts).
Uses It is employed as dietary supplement. The product is used as a flame retardant and applied to chemical plating. Moreover, the product is used as a food additive and an animal nutrition agent, applied to the manufacture of pharmaceutical products, as well as antioxidant and analytical reagent.
Flammability and Explosibility Highly flammable