Quadrivalent uranium as a reducing agent in potentiometric titrations: Estimation of ferric and ceric salts |
| |
Authors: | I.M. Issa I.M. El Sherif |
| |
Affiliation: | Chemistry Department, Faculty of Science, Cairo University, GizaEgypt |
| |
Abstract: | Quadrivalent uranium is found to be a suitable reducing agent in potentiometric titrations, for the estimation of ferric and ceric salts. The stability of the reagent increases by raising the acidity and becomes considerable in the presence of HCl. The stability is not seriously affected by H3PO4 although Zn+2 and Co+2 ions enhance its oxidation. Light affects the stability of the reagent only in the presence of air.The redox potential varies with l'acidity, being 0.3 volt at 0.1N HCl or H2SO4 rising to 0.53 or 0.61 in 1-7 N HCl or 1–9.N H2SO4 and increasing thereafter to ~ 1 volt. |
| |
Keywords: | |
本文献已被 ScienceDirect 等数据库收录! |
|