1,4-Butanediol and epichlorohydrinare reacted in the presence of a Lewis acid as catalyst to form a halohydrin: each hydroxyl group of the diol reacts with an epoxide on epichlorohydrin. This process is followed by washing with sodium hydroxide to re-form the epoxide rings in dehydrochlorinationreaction.[4] One of the quality control tests would involve measuring the Epoxy value by determination of the epoxy equivalent weight.epoxy resin manufa ... Continue