Nomenclature
CAS number: 15123-69-0
CuO
4Se; mol wt 206.50.
Cu 30.77%, O 30.99%, Se 38.24%.
CuSeO
4.
Description and references
Prepd by the action of selenic acid on cupric
carbonate: Klein, Ann. Chim. 14, 263 (1940).
Derivative
Pentahydrate.
Properties
Light-blue triclinic crystals. Loses water above
80°, forming the monohydrate at 150-220° and becoming anhydr by 265°;
dec to the selenite and basic selenite at ≈480° and to CuO at ≈700°.
d 2.56. Sol in water;
very slightly sol in acetone. Practically insol in alcohol.Use
In coloring Cu or Cu alloys black.