Add time:08/10/2019         Source:sciencedirect.com

Partition coefficients of nickel(II) chelates with thenoyltrifluoroacetone (Htta) and dimethyldithiocarbamic acid (Hdmdtc) into various organic solvents were measured at 25°C. The effect of solvent on the partitition coefficients was evaluated with the aid of a modified equation of the regular solution theory. A great difference in the partition coefficients between Ni(tta)2 and Ni(dmdtc)2 can be interpreted by a preferential solute-solvent interaction for the former chelate. The ability of the divalent metal chelates to accept additional salvation is an important factor governing the partition coefficient.

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