Estimation of cyanide ion in metal salts and complexes by means of chloramine-T and dichloramine-T.
A simple and accurate method for the estimation of cyanide in salts and complexes is based on oxidation with chloramine-T (in pH 4 buffer) or dichloramine-T (in presence of acetic anhydride). The oxidation involves a two-electron change. Halides interfere with the estimation of KCN, but the interference can be eliminated by precipitating and determining zinc cyanide. A method for estimating KCN and KCNS in mixtures is also described.
Mahadevappa
D S
DS
Department of Post-graduate Studies and Research in Chemistry, University of Mysore. Manasa Gangotri, Mysore 570 006, India.
Gowda
B T
BT