Cuprous Cyanide
Title: Cuprous Cyanide
CAS Registry Number: 544-92-3
Additional Names: Cupricin
Molecular Formula: CCuN
Molecular Weight: 89.56
Percent Composition: C 13.41%, Cu 70.95%, N 15.64%
Line Formula: CuCN
Literature References: Commercial prepns: Winter et al., Kirk-Othmer Encyclopedia of Chemical Technology vol. 6 (Interscience, New York, 2nd ed., 1965) p 271; laboratory prepns: Barber, J. Chem. Soc. 1943, 79; Norberg, Jacobson, Acta Chem. Scand. 3, 174 (1949); Vaughan, McCane, J. Am. Chem. Soc. 76, 2504 (1954). Review of toxicology and human exposure: Toxicological Profile for Cyanide (PB98-101207, 1997) 291 pp.
Properties: White to cream-colored powder, colorless or dark green orthorhombic crystals, or dark red monoclinic crystals. Poisonous! mp 474°. Practically insol in water, alcohol, cold dil acids. Sol in NH4OH; dec by HNO3, boiling dil HCl. Sol in alkali cyanide solns because of formation of stable cyanocuprate(I) ions.
Melting point: mp 474°
Use: In electroplating Cu or Fe; as insecticide, fungicide; as antifouling agent in marine paints; as polymerization catalyst.

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