ANALYSIS OF HIGH-BOILING ETHOXYLATES OF METHYL, ETHYL AND BUTYL ALCOHOLS, WITH THE USE OF GAS-CHROMATOGRAPHY

A method has been developed for analyzing high-boiling ethoxylates of methyl, ethyl and butyl alcohols, with the use of a heat resistant (up to 325-degrees-C) capillary column with methylphenylsilicone phase (U ltra 2.25 m x 0.32 mm x 0.52 mum from Hewlett Packard). The qualitativ e interpretation was based on a system of arithmetic retention indices which were found with the use of two capillary columns: Ultra 2 and D B-17 (30 m x 0.32 mm x 0.5 mum). In the separation, a Perkin Elmer gas chromatograph, model 8700, equipped with a flame ionization detector was employed. Temperature was changed linearly from to 50-310-degrees- C at the rate of 8-degrees-C min-1.