Department of Analytical Chemistry, Faculty of Sciences, University of Cordoba, Spain
Abstract:
A potentiometric method is described for the determination of thiosemicarbazones involving the formation of a complex with Ag(I). This method is proposed for thiosemicarbazones of the following carbonyl compounds: salicylaldehyde, p-hydroxybenzaldehyde, benzaldehyde, picolinaldehyde, 6-methylpicolinaldehyde and p-dimethylaminebenzaldehyde. Stability constants of the complexes are determined by Ringbom and Harju's method. FIG. 2. Variation of pAg + logαPAT (H) + log (Ag?PAT)]/PAT])
2. Formation Constants of the Silver-Thiosemicarbazonates