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Polarographic studies of copper(II) in aqueous dimethylsulphoxide and aqueous acetone and free energy of transfer of copper(I) and copper(II) from water to dimethyl-sulphoxide-water mixtures

✍ Scribed by D.M. Muir; C. Kenna; P. Singh

Publisher: Elsevier Science
Year: 1988
Tongue: English
Weight: 250 KB
Volume: 33
Category: Article
ISSN: 0013-4686
DOI: 10.1016/0013-4686(88)85015-1

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✦ Synopsis

Polarographic studies of Cu(CIO,), in aqueous dimethylsulphoxide (DMSO) mixtures have identified compositions in which Cu(l) is stable. The half-wave potentials, E,,,, of Cu(II)/Cu(I) and Cu(I)/Cu(Hg) decrease in DMSO-water mixtures and values of free energies of transfer, AG,., of Cu(II) and Cu(I) from water to aqueous DMSO are reported. Similar measurement in aqueous acetone mixtures show that AG,, Cu(I1) increases upon addition of acetone.

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