The equilibrium distribution of mercuric chloride between aqueous sodium chloride solutions and a solution of tri‐isooctylamine in xylene has been measured. The dependence on pH, amine concentration, mercury level, and temperature has been determined. At low pH mercury is extracted quite effectively with a distribution coefficient as high as 2,000. At high pH the mercury can be stripped from the organic solution. This extraction system offers the possibility of an effective mercury separation process for chlorine plant brines or chloride‐based mercury leach liquors. A theoretical model of the extraction equilibria is developed to facilitate interpolation of the experimental data.
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Cabán et al. (1972) studied this question.
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