Nomenclature
CAS number: 21109-95-5
BaS; mol wt 169.39.
Ba 81.07%, S 18.93%.
Description and references
The commercial article contains 80-90% BaS.
Prepn: Ehrlich in Handbook of Preparative
Inorganic Chemistry vol. 1, G. Brauer, Ed.
(Academic Press, New York, 2nd ed., 1963) p 938.
Properties
Heavy, grayish-white or pale yellow powder. d 4.36. mp >2000°. Poisonous. Oxidizes in dry air; slowly dec in damp air
into carbonate, etc., with evolution of H2S. Slightly
sol in cold, more in hot water; sol in NH4Cl soln; decomposed
by acids, even CO2, forming H2S. Keep in well-closed containers.Use
As depilatory; in luminous paints; manuf lithopone;
vulcanizing rubber, generating H
2S.