Nomenclature
CAS number: 1317-41-5
CuSe; mol wt 142.51.
Cu 44.59%, Se 55.41%.
Description and references
Occurs in nature as the mineral klockmannite. Prepd by reduction of cupric selenite with hydrazine:
Benzing et al., J. Am. Chem. Soc. 80, 2657 (1958); Kulifay, J.
Inorg. Nucl. Chem. 25, 75 (1965).
Properties
Blue-black to greenish-black prismatic needles
or hexagonal plates. Dec at a dull red heat. d 6.0-6.6. Sol in HCl with H2Se
evolved, in H2SO4 with SO2 evolved;
oxidized to CuSeO3 by HNO3.Use
Catalyst in Kjeldahl digestions; in semiconductors.