Email this article Algorithm for Calculating the Dissociation Constants of Ampholytes in Nonbuffer Systems
- Authors: Lysova S.S.1, Skripnikova T.A.1, Zevatskii Y.E.1,2,3
-
Affiliations:
- St. Petersburg State University of Industrial Technologies and Design
- ZAO Novbytkhim
- St. Petersburg State Electrotechnical University (LETI)
- Issue: Vol 92, No 5 (2018)
- Pages: 922-926
- Section: Physical Chemistry of Solutions
- URL: https://journals.rcsi.science/0036-0244/article/view/169999
- DOI: https://doi.org/10.1134/S0036024418050229
- ID: 169999
Cite item
Open Access
Access granted
Subscription Access
Abstract
An algorithm for calculating the dissociation constants of ampholytes in aqueous solutions is developed on the basis of spectrophotometric data in the UV and visible ranges without pH measurements of a medium and without buffer solutions. The proposed algorithm has been experimentally tested for five ampholytes of different strengths. The relative error of measuring dissociation constants is less than 5%.
About the authors
S. S. Lysova
St. Petersburg State University of Industrial Technologies and Design
Author for correspondence.
Email: lusovass@mail.ru
Russian Federation, St. Petersburg, 191186
T. A. Skripnikova
St. Petersburg State University of Industrial Technologies and Design
Email: lusovass@mail.ru
Russian Federation, St. Petersburg, 191186
Yu. E. Zevatskii
St. Petersburg State University of Industrial Technologies and Design; ZAO Novbytkhim; St. Petersburg State Electrotechnical University (LETI)
Email: lusovass@mail.ru
Russian Federation, St. Petersburg, 191186; Gatchina, 199026; St. Petersburg, 197022
