Title: Stannous Oxide
CAS Registry Number: 21651-19-4
Additional Names: Tin monoxide; tin protoxide
Molecular Formula: OSn
Molecular Weight: 134.71
Percent Composition: O 11.88%, Sn 88.12%
Line Formula: SnO
Literature References: Prepn of high purity SnO: Kwestroo, Vromans, J. Inorg. Nucl. Chem. 29, 2187 (1967). Prepn of metastable, red, orthorhombic form: Donaldson et al., J. Chem. Soc. 1961, 839.
Properties: Brownish-black powder; burns to SnO2 on heating in air. d 6.45. Insol in water or alcohol. Sol in acids, in concd sodium or potassium hydroxide solns.
Density: d 6.45
CAUTION: Potential symptoms of overexposure are stannosis (benign pneumoconiosis); dyspnea, decreased pulmonary function. See NIOSH Pocket Guide to Chemical Hazards (DHHS/NIOSH 97-140, 1997) p 308.
Use: Reducing agent; prepn of stannous salts. |