Issue 10, 1986

Direct potentiometry of residual water in sulpholane using the proton isoconcentration technique

Abstract

Direct potentiometry of the system sulpholane-0–1%m/m water-10–3 mol dm–3 perchloric acid in glacial acetic acid, using a combination pH glass electrode and a calomel reference electrode with saturated lithium chloride in sulpholane as the filling electrolyte, shows a systematic and large change in potential with variation in the water concentration. This technique allows a fast and accurate determination of residual water in binary sulpholane-water mixtures.

Article information

Article type
Paper

Analyst, 1986,111, 1211-1213

Direct potentiometry of residual water in sulpholane using the proton isoconcentration technique

M. R. O. Karim, Analyst, 1986, 111, 1211 DOI: 10.1039/AN9861101211

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