| abstract |
Novel quaternary ammonium phosphate represented by the following formula (1) having corrosion resistance against various metals including carbon steel, cast iron, stain steel, copper, tin plated steel, aluminum, etc. Compound and its efficient preparation method.n n n [Formula 1]n n n n n n n n Wherein R 1 may include a hetero atom as a linear or pulverized alkyl (or aryl) radical having 1 to 27 carbon atoms which does not contain a hydroxyl group, and R 2 and R 3 may be the same as a methyl group or R 2 and R It is a C4-C6 heterocyclic compound containing oxygen and nitrogen which were couple | bonded with each other. |