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Jun Wang, Zhi-Chang Wang
An Ideal-Like Quinary Aqueous Solution Equilibrated with a Solid Cadmium-Containing Complex
Complex-containing solutions such as H2O–NaCl–CdCl2 always strongly deviate from ideality and the non-ideality often increases with the complex former concentrations. Here we report isopiestic measurements of the H2O–NaCl–CdCl2–mannitol–sorbitol quinary solution equilibrated with the 2NaCl · CdCl2 · 3H2O solid complex at 25 °C, which show a linear relation between mannitol and sorbitol molalities, similar to that for the H2O–mannitol–sorbitol ternary solution. The reason for the ideal-like behavior of the quinary solution is that the saturated complex 2NaCl · CdCl2 · 3H2O has the similar effects as the isopiestic water on the unsaturated solutes mannitol and sorbitol and that the interaction between the isomers mannitol and sorbitol is negligible.
Zeitschrift für Physikalische Chemie, Oldenbourg Wissenschaftsverlag
Print ISSN: 0942-9352
Volume: 218, 07/2004
Pages: 881 - 885