Title: Cadmium Sulfide
CAS Registry Number: 1306-23-6
Additional Names: C.I. 77199
Trademarks: Capsebon (Pitman-Moore)
Molecular Formula: CdS
Molecular Weight: 144.48
Percent Composition: Cd 77.80%, S 22.19%
Literature References: Occurs in nature as the mineral greenockite. Prepd from CdSO4 + H2S: Milligan, J. Phys. Chem. 38, 797 (1934); Frerichs, Naturwissenschaften 33, 281 (1946); prepn of single crystals: Grillot, Compt. Rend. 230, 1280 (1950); Czyzak et al., J. Appl. Phys. 23, 932 (1952); Wagenknecht, Juza in Handbook of Preparative Inorganic Chemistry vol. II, G. Brauer, Ed. (Academic Press, New York, 2nd ed., 1965) pp 1098-1099. See also Colour Index vol. 4 (3rd ed., 1971) p 4659.
Properties: Light-yellow or orange-colored cubic or hexagonal crystals. Cubic structure: d 4.50; hexagonal structure: d 4.82. The light-yellow variety is also known as Cadmium Yellow or Jaune Brilliant. d 4.82. Sublimes at 980°. Soly in water (18°): 0.13 mg/100 g. Sol in concd or warm dil mineral acids with evolution of H2S; readily dec and dissolved by moderately dil HNO3.
Density: d 4.50; d 4.82; d 4.82
CAUTION: Cadmium and cadmium compounds are listed as known human carcinogens: Report on Carcinogens, Eleventh Edition (PB2005-104914, 2004) p III-42.
Use: As a pigment being fast to light and not affected by H2S; color for soaps; coloring glass yellow; coloring textiles, paper, rubber; in printing inks, ceramic glazes, fireworks; in phosphors and fluorescent screens; in scintillation counters, semiconductors, photoconductors.
Therap-Cat: Dermatologic. |