Collect. Czech. Chem. Commun. 1982, 47, 495-502

The titanometric determination of azobenzene derivatives in mixed acetonitrile-methanol-water medium

Jiří Barek, Antonín Berka and Vladimír Borek

Department of Analytical Chemistry, Charles University, 128 40 Prague 2


The possibility of titanometric determination of a number of azobenzene derivatives in a mixed acetonitrile-methanol-water medium, which ensures sufficient solubility of the substances determined, was studied. Trivalent titanium in the presence of sodium citrate was found to be optimal. Conditions were found for the automatic potentiometric titration of a number of azo-compounds using this reagent.