It is titrated with standard solution KOH in KCI supporting electrolyte.

Theelectrolytic desulfurization behavior of Guizhou Liuzhi high sulfur coal has been investigated in water methanol using sodium bydroxid as supporting electrolyte.

Meanwhile the supporting electrolyte, i. e. tetraethylammonium is decomposed to chloroethane and ethylamine, so the supporting electrolyte should be improved in future.