COMBINATIONS OF CARBOXYLATES FOR USE AS FREEZING POINT DEPRESSANTS AND CORROSION PROTECTION IN HEAT-TRANSFER FLUIDS

摘要

An aqueous heat .transfer fluid comprising a C₃ carboxylate freezing point depressant, either solely: or in combination with C₃-C₅carboxylate freezing point depressants, in combination with C₆-C₁₆organic acid salt corrosion inhibitors, provides an antifreeze/coolant composition wherein the corrosion inhibitors exhibit uniquely enhanced solubility, especially at low temperatures, in synergistic combination with the selected carboxylate freezing point depressants.