Synergistic combinations or carboxylates for use as freezing point depressants and corrosion inhibitors in heat transfer fluids.

摘要

The use of a composition comprising a mixture of a C 1 - C 2 carboxylic acid salt and a C 3 - C 5 carboxylic acid salt as a coolant composition in automotive engines is described. The aqueous compositions may further comprise a hydrocarbyl triazole or a hydrocarbyl thiazole