Abstract:
A direct and simple oxidimetric titrimetric method for the estimation of ascorbic acid, hydrazine, sodium sulphite, thiosulphate and vanadium(II) with chloramine-T in EDTA medium is reported both potentiometric and visual end point detection. Indicators used are cacotheline, p-anisidine, methylene blue, erioglucine-A, thionine and starch successfully.

Keywords: ascorbic acid, hydrazine, sodium sulphite, thiosulphate, vanadium(II), chloramines-T, titrimetric method and potentiometric method.