METHOD FOR CETYL-TRIMETHYL AMMONIUM BROMIDE PREPARATION

摘要

The invention relates to a method for the synthesis of cetyl-trimethyl ammonium bromide with the formula The compound has strong bacterial effect and finds wide application in hygiene, birth control and foodstuffs testing for the content of dyestuffs. The cetyl-trimethyl ammonium bromide is produced by the reaction between cetylbromide and trimethylamine in alcohol medium with an yield of about 90 %. Each of the initial reagents is being produced at a high yield (85 %) and purity (98 %) and is being used for the synthesis of the end compound. The cetylbromide is produced from cetyl alcohol and hydrogen bromide, and the trimethylamine from paraformaldehyde and ammonium bromide. The methods for the synthesis of the intermediate products and the end compound are industrially applicable. 3 claims