Phase equilibria in water-alkali metal (ammonium) sulfate-Oxifos B systems |
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| Authors: | O S Kudryashova N N Mokhnatkina A E Lesnov S A Denisova |
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| Institution: | 1.Institute of Natural Sciences,Perm State University,Perm,Russia;2.Institute of Technical Chemistry, Ural Branch,Russian Academy of Sciences,Perm,Russia |
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| Abstract: | Solubility in the H2O-(NH4)2SO4 (Li2SO4, Na2SO4)-Oxifos B (potassium bis(alkylpolyoxyethylene) phosphate, C
n
H2n + 1O(C2H4O)
m
]2POOK, n = 8−10, m = 6) ternary systems at 25°C is reported. A two-phase liquid-liquid equilibrium in the systems is observed in a wide pH range
(at inorganic acid concentrations of 2 to 10 mol/l). These separating systems are suggested for use in liquid-liquid extraction
of metal ions. |
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| Keywords: | |
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