Salting-out Ability of Inorganic Salts in Solutions of Ethoxylated Nonylphenols
- Authors: Stankova A.V.1, Elokhov A.M.1,2, Kudryashova O.S.2
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Affiliations:
- Perm State National Research University
- Institute of Natural Science, Perm State National Research University
- Issue: Vol 92, No 7 (2018)
- Pages: 1386-1391
- Section: Physical Chemistry of Surface Phenomena
- URL: https://bakhtiniada.ru/0036-0244/article/view/170065
- DOI: https://doi.org/10.1134/S0036024418070270
- ID: 170065
Cite item
Abstract
The pattern of changes in the salting-out ability of the salts of nontransition metals and ammonium is established with respect to aqueous solutions of ethoxylated nonylphenols. The anions in the salt play a key role in the process, while cations have almost no effect on the salting-out ability of the salts of singly charged anions. The salting-out effect of anions diminishes in the order \({\text{PO}}_{4}^{{3 - }}\), \({\text{SO}}_{4}^{{2 - }}\), Cl−, \({\text{NO}}_{3}^{ - }\), Br−, and I−. Na+, K+, \({\text{NH}}_{4}^{ + }\), and Ba2+ cations have no pronounced salting-in effect. The salting-in effect diminishes along with the charge of the cation in the order Al3+, Mg2+, and Li+. It is shown that the salting-out ability of salts diminishes as the degree of surfactant ethoxylation grows.
About the authors
A. V. Stankova
Perm State National Research University
Email: elhalex@yandex.ru
Russian Federation, Perm, 614990
A. M. Elokhov
Perm State National Research University; Institute of Natural Science, Perm State National Research University
Author for correspondence.
Email: elhalex@yandex.ru
Russian Federation, Perm, 614990; Perm, 614990
O. S. Kudryashova
Institute of Natural Science, Perm State National Research University
Email: elhalex@yandex.ru
Russian Federation, Perm, 614990
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