Ionization of some weak acids in dimethyl sulphoxide+water mixtures
- 1 January 1970
- journal article
- research article
- Published by Royal Society of Chemistry (RSC) in Transactions of the Faraday Society
- Vol. 66, 2622-2628
- https://doi.org/10.1039/tf9706602622
Abstract
The ionization constants of acetic, chloroacetic, dichloroacetic and trichloroacetic acids have been determined as functions of the solvent composition in dimethyl sulphoxide (DMSO)+water mixtures. A plot of pK against mol fraction DMSO is nearly linear, but plots of pK against the reciprocal of the dielectric constant, weight % DMSO, or the Z value of the solvent show marked curvature.Keywords
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