Determination of thioacetamide and thiobenzamide using dichloramine-T

V-M Ramanujam, Netkal M. Made Gowda, Norman M. Trieff

Research output: Contribution to journalArticle

3 Citations (Scopus)

Abstract

Simple and accurate titrimetric methods for the determination of thioacetamide and thiobenzamide in partially aqueous media have been developed, based on their stoicheiometric oxidation with dichloramine-T (DCT) at room temperature. The direct titration of the thioamide with DCT involves a two-electron change, giving a carboxylic acid, ammonia and sulphur as oxidation products with p-toluenesulphonamide as the reduction product of DCT. A back-titration procedure involving the oxidation of thioacetamide to acetic acid, ammonium sulphate and sulphur by excess of DCT with a five-electron change has also been developed. The methods described are simple, rapid, reproducible and accurate. The reaction products have been identified by thin-layer and paper chromatography and colour tests.

Original languageEnglish (US)
Pages (from-to)873-876
Number of pages4
JournalThe Analyst
Volume105
Issue number1254
StatePublished - 1980

Fingerprint

Thioacetamide
Titration
oxidation
Oxidation
Sulfur
sulfur
electron
Electrons
Thioamides
ammonium sulfate
carboxylic acid
Chromatography
Reaction products
Carboxylic acids
Acetic acid
Paper Chromatography
acetic acid
chromatography
Ammonia
Ammonium Sulfate

Keywords

  • Dichloramine-T
  • Oxidimetric titrations
  • Thioamide determination

ASJC Scopus subject areas

  • Analytical Chemistry

Cite this

Ramanujam, V-M., Made Gowda, N. M., & Trieff, N. M. (1980). Determination of thioacetamide and thiobenzamide using dichloramine-T. The Analyst, 105(1254), 873-876.

Determination of thioacetamide and thiobenzamide using dichloramine-T. / Ramanujam, V-M; Made Gowda, Netkal M.; Trieff, Norman M.

In: The Analyst, Vol. 105, No. 1254, 1980, p. 873-876.

Research output: Contribution to journalArticle

Ramanujam, V-M, Made Gowda, NM & Trieff, NM 1980, 'Determination of thioacetamide and thiobenzamide using dichloramine-T', The Analyst, vol. 105, no. 1254, pp. 873-876.
Ramanujam, V-M ; Made Gowda, Netkal M. ; Trieff, Norman M. / Determination of thioacetamide and thiobenzamide using dichloramine-T. In: The Analyst. 1980 ; Vol. 105, No. 1254. pp. 873-876.
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