1675. Calcium Hypophosphite

Nomenclature

CAS number: 7789-79-9
CaH4O4P2; mol wt 170.05.
Ca 23.57%, H 2.37%, O 37.63%, P 36.43%.
Ca(H2PO2)2.

Description and references

Prepn: Gmelins, Calcium (8th ed.) 28B, 1119-1121 (1958).

Properties

Monoclinic, prismatic crystals or granular powder. When heated above 300° it evolves spontaneously-inflammable phosphine. Sol in water; slightly sol in glycerol. Practically insol in alcohol. The aq soln is slightly acid.

Use

As corrosion inhibitor; in nickel plating. Pharmaceutic aid (retards oxidation of ferrous salts).

Therapeutic Category

Calcium source.

Therapeutic Category (Veterinary)

Has been used as a dietary supplement and also as a “nerve tonic”.

Keywords

Replenishers/Supplements; Calcium