title: Alkalimetric determination of mercaptans through trithiocarbonic acid formation.
abstract: A simple and rapid alkalimetric method for the determination of mercaptans through trithiocarbonic acid formation is described. The mercaptans are titrated in tert.-butanol in the presence of carbon disulphide with standard aqueous sodium hydroxide, with phenolphthalein as indicator. The -SH group is smoothly, rapidly and quantitatively transformed into the group under the specified conditions. The method has been extended to the analysis of mercaptan-carboxylic acid and mercaptan-trithiocarbonate mixtures.
authors.affiliation: Department of Chemistry, Himachal Pradesh University, Simla-171005, India.
authors.forename: B C
authors.initials: BC
authors.lastname: Verma
authors.forename: S
authors.initials: S
authors.lastname: Kumar