Benzalkonium salts are an economically important group of industrial chemicals that are used in a wide range of products and situations, from manufacturing to everyday life . Benzalkonium chloride (BAC) syntheses require alkyl dimethyl amines, which are tertiary amines with two methyl groups and a third alkyl group, C8-C18 and benzyl chloride, a white liquid with a pungent odor, induces eye tears . Benzyl chloride primarily changes molecules' chemical characteristics by adding benzyl functionality. This is used to make plasticizers, sanitizers, oil extraction products, and medicines . The known method for producing benzalkonium chloride (BAC) by interaction of tertiary amines with benzyl chloride is illustrated in Figure . Where R stands for the aliphatic hydrocarbon radicals that (alkyl radicals). A tertiary amine mixture is made up of amines with alkyl radicals. There are a lot of tertiary amines in the mixture that have alkyl radicals with more than 14 carbon atoms, which made the final product, alkyl dimethyl benzyl ammonium chlorides, benzalkonium chloride BAC, are toxic . Different rates of benzyl chloride's chemical reactions with tertiary amines and possible side results from substance interactions. This produces many impurities and undesirable alterations in the final product's valuable functioning properties. Refined tertiary amine dimethylcetylamine can be mixed with 0.5 mol of benzyl chloride at 78° C for 2-2.5 hours to make BAC with a final conversion rate of 92% . BAC manufacturing comprises various industrial processes: The raw materials include alkyl dimethyl amine and benzyl chloride charging, along with a method for specification examination.