The determination of epichlorohydrin in aqueous solutions in the presence of glycerin, monochlorohydrin and glycidol

Abstract

Epichlorohydrin can be extracted from aqueous solutions containing glycerin, monochlorohydrin and glycidol into carbon tetrachloride and determined by infrared spectrophotometry. The high-frequency component of the complex band a t a wavenumber 1274 cm-l is used as the analytical band. A three-fold excess of carbon tetrachloride over the aqueous phase is necessary for the quantitative extraction. A cell thickness of up to 1 mm can be used ; the concentration limit of the solute in the aqueous phase is then 0-3 per cent. v/v.