Nomenclature
CAS number: 1305-84-6
CaSe; mol wt 119.04.
Ca 33.67%, Se 66.33%.
Description and references
Prepd by reducing CaSeO4 in a stream
of H2 at 400-500°: Ehrlich in Handbook of Preparative Inorganic Chemistry vol.
1, G. Brauer, Ed. (Academic Press, New York, 2nd ed, 1963) p
939.
Properties
White powder. In air may turn red within a few
minutes and light brown in a few hours. d 3.82. Decomposed by water. Treatment with
HCl produces H2Se gas, and red Se separates.Use
In electron emitters.