Solubility and Extraction of Metal Ions in Inorganic Acid-Potassium Bis(alkylpolyoxyethylene)phosphate-Water Systems

被引：0
|
作者：
Denisova, S. A. [1 ]
Svezhov, D. A. [1 ]
Elokhov, A. M. [1 ]
机构：
[1] Perm Natl Res Univ, Perm 614990, Russia
来源：
RUSSIAN JOURNAL OF PHYSICAL CHEMISTRY A | 2023年 / 97卷 / 02期
关键词：
anionic surfactants; liquid extraction; halide acid complexes; salting-out; MICELLAR EXTRACTION; 2-PHASE EXTRACTION; WATER SAMPLES; SALTING-OUT; LIQUID;
D O I：
10.1134/S0036024423020048
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 boundaries of the segregation region in sulfuric (nitric, chloric, hydrochloric) acid-potassium bis(alkylpolyoxyethylene) phosphate-water systems at 25 degrees C have been determined by isothermal titration. The salting-out ability of the inorganic acid was found to increase with a decrease in the absolute value of the Gibbs energy of anion hydration. Based on the obtained diagrams, the optimum parameters of extraction were determined, and tendencies in the distribution of some metal ions in the sulfuric acid-potassium bis(alkylpolyoxyethylene) phosphate-water system were studied. Conditions for quantitative extraction of thallium(III) in the presence of alkali metal halides were found.
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页码：357 / 361
页数：5
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