Kinetic method of analysis - selection of indicator system

Author: medeia pkhovelishvili
Keywords: Kineticway method, indicator reaction, substrate, oxidizer, catalyst.
Annotation:

Annotation In order to select an indicator system, oxidation-reduction systems are studied - Substrate (pyrogallic, pyrocatechin, resorcin, hydroquinone, gallic acid) + oxidizer (iodate, peroxide, bromate) + acid (acetic acid, tartaric acid) + catalyst (vanadium, tungsten, molybdenum). The indicator system is selected. Gallic acid + potassium iodate + acetic acid + catalyst vanadium (V). The optimal conditions for the indicator reaction are investigated. A kinetic method is developed for the determination of vanadium (V). Vanadium (V) in model solutions is determined.