COMPOSITIONS OF ANTIFREEZING LIQUID OR COOLING LIQUID WITH IMPROVEMENTS IN ANTICORROSION AND PH BUFFERING

摘要

PURPOSE: A composition of antifreezing liquid or cooling liquid is provided to improve anticorrosion and pH buffering while maintaining metal corrosion-preventing performance. CONSTITUTION: A composition of antifreezing liquid or cooling liquid comprises cyclo hexane dicarboxylic acid, azole or thiazole inhibitor, and metal of group 2, 5, 6, or 7. The cyclo hexane dicarboxylic acid is one or two or more mixtures selected from 1,4-cyclo hexane dicarboxylic acid, 1,3-cyclo hexane dicarboxylic acid, and 1,2-cyclo hexane dicarboxylic acid. The azole or thiazole based inhibitor is selected from tolyltriazole, benzotriazole, 4-phenyl-1,2,3-triazole, 2-naphtotriazole, 4-nitrobenzotriazole, and 2-mercaptobenzothiazole. [Reference numerals] (AA,DD) Classification; (BB,EE) Radiator; (CC,FF) Water pump;