Email this article Methyl violet as an indicator of perfluorosulfonic membrane acid properties
- Authors: Pak V.N.1, Kurova A.A.1, Borisov A.N.1
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Affiliations:
- Herzen State Pedagogical University of Russia
- Issue: Vol 87, No 6 (2017)
- Pages: 1217-1219
- Section: Article
- URL: https://journals.rcsi.science/1070-3632/article/view/220256
- DOI: https://doi.org/10.1134/S1070363217060184
- ID: 220256
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Abstract
Sorption of methyl violet from an aqueous solution by a perfluorosulfonic membrane is accompanied by the indicator protonation. Changes in the absorption spectra of the indicator and the corresponding color transitions, which are consistent with the shape of the isotherm of water adsorption by the membrane, characterize it as a strong solid acid.
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About the authors
V. N. Pak
Herzen State Pedagogical University of Russia
Author for correspondence.
Email: pakviacheslav@mail.ru
Russian Federation, nab. r. Moiki 48, St. Petersburg, 191186
A. A. Kurova
Herzen State Pedagogical University of Russia
Email: pakviacheslav@mail.ru
Russian Federation, nab. r. Moiki 48, St. Petersburg, 191186
A. N. Borisov
Herzen State Pedagogical University of Russia
Email: pakviacheslav@mail.ru
Russian Federation, nab. r. Moiki 48, St. Petersburg, 191186
