Title: Trithiocarbonic Acid

CAS Registry Number: 594-08-1

CAS Name: Carbonotrithioic acid

Additional Names: dihydrogen thiocarbonate

Molecular Formula: CH2S3

Molecular Weight: 110.22

Percent Composition: C 10.90%, H 1.83%, S 87.28%

Literature References: Prepared by the treatment of BaCS3 with ice-cold 10% HCl: v. Halban et al., Z. Elektrochem. 29, 445 (1923); Mills, Robinson, J. Chem. Soc. 1928, 2326; Gattow, Krebs, Angew. Chem. 74, 29 (1962).

Properties: Highly refractive red oil. mp -26.9°. bp 57.8°. d420 1.483; d425 1.476. nD20 1.8225. Dec by water, alcohol. Addition of sulfur produces tetrathiocarbonic acid CH2S4.

Melting point: mp -26.9°

Boiling point: bp 57.8°

Index of refraction: nD20 1.8225

Density: d420 1.483; d425 1.476