Nomenclature
CAS number: 10025-67-9
Disulfur dichloride; sulfur monochloride; sulfur subchloride.
Cl
2S
2; mol wt 135.04.
Cl 52.51%, S 47.49%.
S
2Cl
2.
Description and references
Prepared by passing chlorine into molten sulfur,
can be purified by fractional distillation: Fehér in Handbook of Preparative Inorganic Chemistry vol. 1, G. Brauer, Ed. (Academic Press, New York, 2nd
ed., 1963) pp 371-372. Hydrolysis: H. L. Olin, J. Am. Chem. Soc. 48, 167 (1926).
Properties
Non-flammable, light amber to yellowish red, fuming,
oily liquid. Penetrating odor. d15.515.5 1.6885. nD20 1.670. mp 77°. bp760 138°; bp100 72.0°; bp10 19.1°. Dielectric constant 4.9 at 22°. Dipole moment 1.60. Sol
in alcohol, benzene, ether, carbon disulfide, carbon tetrachloride,
oils. Readily dissolves sulfur (up to 67% at room temp). Dec by
water yielding sulfur, hydrogen chloride, sulfur dioxide, hydrogen
sulfide, sulfite, thiosulfate. In acid solns pentathionic and other
polythionic acids are formed. Corrosive.
Keep tightly closed and out of contact with water.Caution
Potential symptoms of overexposure
are irritation of eyes, skin and mucous membranes; lacrimation; coughing;
eye and skin burns; pulmonary edema. See NIOSH Pocket Guide to Chemical Hazards (DHHS/NIOSH
97-140, 1997) p 290.Use
Intermediate and chlorinating agent in the manuf
of organic chemicals, sulfur dyes, insecticides, synthetic rubbers;
in cold vulcanization of rubber; as polymerization catalyst for vegetable
oils; for hardening soft woods.