Effect of the Salting-Out Agent Anion Nature on the Phase Separation of a Potassium Salt-Potassium Bis(alkyl polyoxyethylene)phosphate-Water Systems

被引：4

作者：

Elokhov, A. M. ^{[1
]}

Lesnov, A. E. ^{[1
]}

Kudryashova, O. S. ^{[2
]}

机构：

[1] Russian Acad Sci, Ural Branch, Inst Tech Chem, Perm 614013, Russia

[2] Perm State Univ, Inst Nat Sci, Perm 614990, Russia

来源：

RUSSIAN JOURNAL OF PHYSICAL CHEMISTRY A | 2016年 / 90卷 / 10期

基金：

俄罗斯基础研究基金会;

关键词：

micellar extraction; salting-out; anionic surfactants; CLOUD POINT EXTRACTION; SURFACTANT;

D O I：

10.1134/S0036024416100101

中图分类号：

O64 [物理化学（理论化学）、化学物理学];

学科分类号：

070304 ; 081704 ;

摘要：

The effect the salting-out agent anion nature has on the temperature and concentration intervals of the existence of the separation area is established by analyzing the phase diagrams of pseudoternary KCl ( KBr, KI, KNO3, K2SO4, K4P2O7)-potassium bis(alkyl polyoxyethylene) phosphate ( oxyphos B)-water systems. It is concluded that the anionic salting-out capability is reduced in the order P2O74- > SO42- > Cl- > Br- > NO3- > I-. The thermodynamic parameters of phase separation used to interpret the results are calculated. The observed pattern of a change in the salting-out ability of the investigated salts relative to aqueous solutions of the surfactants is in good agreement with the lyotropic ( Hofmeister) series.

引用

页码：1972 / 1977

页数：6

共 4 条

[1] Effect of the salting-out agent anion nature on the phase separation of a potassium salt–potassium bis(alkyl polyoxyethylene)phosphate–water systems
A. M. Elokhov
A. E. Lesnov
O. S. Kudryashova
Russian Journal of Physical Chemistry A, 2016, 90 : 1972 - 1977
[2] Phase and extractive equilibria in the water-inorganic salting-out agent-polyethyleneglycol alkyl ether systems
Kudryashova, O. S.
Denisova, S. A.
Lesnov, A. E.
Popova, M. A.
RUSSIAN JOURNAL OF PHYSICAL CHEMISTRY A, 2008, 82 (04) : 680 - 682
[3] Phase and Extractive Equilibria in the Water-Inorganic Salting-out Agent-Polyethyleneglycol Alkyl Ether Systems
O. S. Kudryashova
S. A. Denisova
A. E. Lesnov
M. A. Popov
Russian Journal of Physical Chemistry A, Focus on Chemistry, 2008, 82 : 680 - 682
[4] PHASE EQUILIBRIA, SOLUBILITY AND SALTING-OUT EFFECT IN THE TERNARY SYSTEM POTASSIUM NITRATE- WATER- BUTYRIC ACID IN THE RANGE OF 5-100 °C
Cherkasov, D. G.
Karagulova, M. A.
Sheps, Yu. A.
Balaban, S. N.
Danilina, V. V.
IZVESTIYA VYSSHIKH UCHEBNYKH ZAVEDENII KHIMIYA I KHIMICHESKAYA TEKHNOLOGIYA, 2023, 66 (09): : 36 - 45

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