Synergistic combinations of carboxylates for reducing temperature of congelation and retardation of corrosion in heat-transferring liquids

摘要

Aqueous coolants and heat transfer fluids are disclosed. The compositions comprise aqueous solutions of a mixture of a C₁-C₂ carboxylate salt with a C₃-C₅ carboxylate salt. A C₆-C₁₂ acid may also be added to the mixture. The aqueous compositions may further comprise a hydrocarbyl triazole and thiazole. The aqueous compositions have good heat transfer properties, low freezing points and low corrosion properties.