Nomenclature
CAS number: 10325-94-7
Nitric acid cadmium salt (2:1).
CdN
2O
6; mol wt 236.42.
Cd 47.55%, N 11.85%, O 40.60%.
Cd(NO
3)
2.
Description and references
Exists most commonly as tetrahydrate. Prepn:
Gmelins, Cadmium (8th ed.) 33, pp 76-78 (1925); suppl. p 446 (1959). Raman spectra of
hydrated and anhydrous forms: D. W. James et al., Aust. J. Chem. 31, 1189 (1978);
M. T. Carrick et al., ibid. 36, 223 (1983);
and X-ray scattering in aqeuous soln: R. Caminiti et al., J. Phys. Chem. 88, 2382 (1984). Thermal decompn of tetrahydrate: K. T. Wojciechowski,
A. Malecki, Thermochim. Acta 331, 73 (1999).
Derivative
Tetrahydrate.
Nomenclature
CAS number: 10022-68-1
CdN
2O
6.4H
2O; mol wt 308.48.
Cd 36.44%, N 9.08%, O 51.87%, H 2.61%.
Properties
Hygroscopic, orthorhombic crystals. mp 59.5°. Sol in 0.6 part water;
sol in alc, acetone, ethyl acetate; practically insol in concd HNO3. Poisonous. Emits toxic Cd and NOx
fumes when heated to dec.Caution
Cadmium and cadmium compounds are
listed as known human carcinogens: Report
on Carcinogens, Eleventh Edition (PB2005-104914, 2004)
p III-42. Direct contact may cause severe skin and moderate eye irritation.Use
In making other Cd salts; in photographic emulsions.