978. Barium Hypophosphite

Nomenclature

CAS number: 14871-79-5
BaH4O4P2; mol wt 267.30.
Ba 51.38%, H 1.51%, O 23.94%, P 23.18%.
Ba(H2PO2)2.

Description and references

Prepd by treating white phosphorus with barium hydroxide: 8P + 3Ba(OH)2.8H2O + H2O → 3Ba(H2PO 2)2.H2O + 2PH3: Rose, Pogg. Ann. 9, 370 (1827); Klement in Handbook of Preparative Inorganic Chemistry Vol. 1, G. Brauer, Ed. (Academic Press, New York, 2nd ed., 1963) p 557.

Derivative

Monohydrate.

Properties

Monoclinic platelets with nacreous sheen from hot water. Poisonous. d417 2.90. Soly (g/100 ml H2O): 28.6 (17°); 33.3 (100°). Practically insol in alcohol.

Use

In nickel plating.