Nomenclature
CAS number: 7772-99-8
Tin chloride (SnCl
2); tin dichloride; tin protochloride; Stannochlor.
Cl
2Sn; mol wt 189.62.
Cl 37.39%, Sn 62.60%.
SnCl
2.
Description and references
Prepn: Stephen, J.
Chem. Soc. 1930, 2786; Williams, Org. Synth. coll. vol. III, 627
(1955). Thermal properties: W. Fischer, R. Gewehr, Z. Anorg. Allg. Chem. 242, 188
(1939). Metabolism and toxicity studies: M. Marciniak, Acta Physiol. Pol. 32, 193 (1981);
P. P. Singh, A. Y. Junnarkar, Indian J. Pharmacol. 23, 153 (1991). Review of toxicology and human exposure:
Toxicological Profile for Tin (PB2006-100006, 2005) 426 pp.
Properties
Orthorhombic cryst mass or flakes; fatty appearance.
mp 247°; bp 652°; d 3.95. Sol in water, ethanol, acetone,
ether, methyl acetate, methyl ethyl ketone, isobutyl alcohol. Practically
insol in mineral spirits, petr naphtha, xylene. LD50 in mice, rats (mg/kg): 1710.0, 2000.0 orally; 271.0, 316.0 i.p.; 34.8, 43.0 i.v. (Singh, Junnarkar).Derivative
Dihydrate.
Nomenclature
CAS number: 10025-69-1
Cl
2Sn.2H
2O; mol wt 225.65.
Cl 31.42%, Sn 52.61%, H 1.79%, O 14.18%.
Properties
Crystals; absorbs oxygen from air and forms insol
oxychloride. d 2.71. mp 37-38° when rapidly
heated; dec on strong heating. Sol in less than its own wt of
water; with much water it forms an insol basic salt; very sol in dil
or in concd hydrochloric acid; also sol in alcohol, ethyl acetate,
glacial acetic acid, sodium hydroxide soln. Keep tightly closed, in a cool place.Use
Powerful reducing agent, particularly in manuf of
dyes and
99mTc radiopharmaceuticals; in tinning by galvanic
methods; in liquor finishing of wire; in sensitizing of glass and
plastics before metallizing; as soldering flux; as mordant in dyeing
with cochineal; in manufacture of tin chemicals, color pigments, pharmaceuticals,
sensitized paper, lubricating oil additives; as tanning agent; in
removing ink stains; in yeast revivers; as reagent in analytical chemistry;
as catalyst in organic reactions.