Extraction of Alkali Ions Investigated by Conductometric and pH Measurements
Keyword(s):
Ph Value
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Extraction of alkali ions from aqueous solutions of chlorides and hydroxides into a lipophilic liquid membrane composed of tetraethyl p-tert-butylcalix[4]arene tetraacetate (TBT) solution in hexane was investigated by means of measurements of changes in the electrolytic conductivity and pH-value of the aqueous solution. Hydrolysis of the TBT ionophore resulting in the release of the ethyl groups was proposed as the main reaction process, leading to disturbance of the known preference of TBT for sodium ions.
2007 ◽
Vol 306
(1-3)
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pp. 14-21
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2011 ◽
Vol 356-360
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pp. 1675-1678
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2020 ◽
Vol 58
(5A)
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pp. 170
1984 ◽
Vol 49
(3)
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pp. 559-569
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1879 ◽
Vol 29
(196-199)
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pp. 472-482
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