N-substituted phenothiazines as redox indicators in bromatometry

Sanke Gowda, H. and Ahmed, S. Akheel (1979) N-substituted phenothiazines as redox indicators in bromatometry. Talanta, 26 (Copyri). pp. 233-235.

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Official URL: https://doi.org/10.1016/0039-9140(79)80055-7


Diethazine, trifluoperazine, promethazine, and chlorpromazine hydrochlorides, butaperazine dimaleate, and prochlorperazine maleate were studied as indicators in the BrO3- titration of quinol, metol, and ascorbic acid. Their formal potentials were determined They are superior to p-ethoxychrysoidine and 2,6-dichlorophenolindophenol as indicators because they give sharper and brighter end points, the end point color is more stable, and a slight excess of BrO3- after the equivalence point does not destroy the color. In all the BrO3- titrations of quinol, metol, and ascorbic acid, these indicators gave results accurate to ±0.2%.

Item Type: Article
Uncontrolled Keywords: ascorbic acid bromate titration indicator, metol bromate titration phenothiazine indicator, phenothiazine redox indicator bromatometry, quinol bromate titration phenothiazine indicator
Subjects: C Chemical Science > Chemistry
Divisions: Department of > Chemistry
Depositing User: Dhruva Kumar
Date Deposited: 27 May 2021 06:11
Last Modified: 14 Jul 2022 09:39
URI: http://eprints.uni-mysore.ac.in/id/eprint/13169

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