Direct oxidimetric determination of thiocarbonate sulphur with ferricyanide, using iron(II)-dimethylglyoxime or sodium nitroprusside as indicator.
Direct determination of 15-50 mg of thiocarbonate sulphur can be achieved by a one-step titration with potassium ferricyanide, using iron(II)-dimethylglyoxime or sodium nitroprusside as indicator. Only one sulphur atom of the thiocarbonate ion undergoes oxidation to elemental sulphur, the other two separating as carbon disulphide.
Singh
K
K
Department of Chemistry, Ahmadu Bello University, Zaria, Nigeria.
Bhatia
P G
PG
Gupta
R D
RD