Nomenclature
CAS number: 507-09-5
Ethanethioic acid; thiolacetic acid; thiacetic acid.
C
2H
4OS; mol wt 76.12.
C 31.56%, H 5.30%, O 21.02%, S 42.12%.
CH
3COSH.
Description and references
Prepn by distilling glacial acetic acid with
phosphorus pentasulfide: Kekulé, Ann. 90, 309 (1854); from acetic anhydride and hydrogen sulfide:
Ellingboe, Org. Synth. 31, 105 (1951).
Properties
Yellow liquid; pungent odor. Flammable. d410 1.075; bp 93°. Not solidified at 17°. Sol in water,
particularly hot; very sol in alcohol.