Alkalimetric determination of mercaptans through trithiocarbonic acid formation.
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.
Verma
B C
BC
Department of Chemistry, Himachal Pradesh University, Simla-171005, India.
Kumar
S
S