Nomenclature
CAS number: 7791-23-3
Seleninyl chloride.
Cl
2OSe; mol wt 165.87.
Cl 42.75%, O 9.65%, Se 47.60%.
SeOCl
2.
Description and references
Prepd by passing chlorine into SeO2 suspended in carbon tetrachloride: Lenher, J. Am. Chem. Soc. 42, 2498 (1920); H"onigschmid,
G"ornhardt, Z. Naturforsch. 1, 661 (1946); by dehydration of dichloroselenious acid: Smith,
Jackson, Inorg. Synth. 3, 130 (1950); from SOCl2 and SeO2: Paetzold,
Aurich, Z. Anorg. Allg. Chem. 315, 72 (1962); from AlCl3 and SeO2:
Drago, Whitten, Inorg. Chem. 5, 677 (1966). Acute toxicity: C. G. Wilber, Clin. Toxicol. 17, 171 (1980).
Properties
Nearly colorless or yellowish liquid; fumes in
the air. d416 2.44. Solidif ≈5°. bp 180°. nD20 1.651. Corrosive; poisonous. Dec by water into
HCl and selenious acid. Miscible with carbon tetrachloride, chloroform,
carbon disulfide, benzene, toluene. It is an excellent solvent for
many substances including metals. LD50 s.c. in rabbits: 7 mg/kg (Wilber).Caution
Strong irritant, vesicant. See Clinical Toxicology of Commercial
Products, R. E. Gosselin et al., Eds. (Williams
& Wilkins, Baltimore, 5th ed., 1984) Section II, p 129.