Metal salts of organic dithiophosphates and lubricating compositions containing them

摘要: The invention comprises compounds having the general formula:- wherein R1 is a C2-C24 alkyl radical, R2 radical in which one or more of hydrogen atoms are replaced by chlorine and M zinc cadmium. They may be obtained reacting equimolar proportions alkanol chlorine-containing with phosphorus pentasulphide at elevated temperature product thus oxide, hydroxide carbonate Suitable alkanols ethylene chlorhydrin, di- trichlorethanol, 2-chloropropanol-1, 2,2,3-trichlorobutanol-1 5-chloro-pentanol-1. products complexed amines, preferably tertiary primary amines. Examples given for production (1) chloroethyloctyl dithiophosphate, (2) chloroethyl ceto-stearyl dithiophosphate complex mixture isomeric amines groups contain from 16 to 24 carbon atoms. useful as additives lubricating oils (see Group III).ALSO:A composition major proportion weight oil containing minor where cadmium IV(b)) said an amine, especially amine. mineral synthetic polymer ester oil, e.g. dicarboxylic acid. Other aditives such antioxidants, detergent viscosity improving also present. Specified thereof C16-C24 dithiophosphate.