Absorption refrigeration system working fluid with corrosion inhibitor and method of manufacture

Abstract From the Canadian patent

A corrosion inhibiting working fluid for absorption refrigeration systems and a method of manufacturing such a fluid. The fluid is an aqueous solution of a halogen salt of lithium or ammonia to which are added water soluble compounds containing molybdates borates and, in, a preferred embodiment silicates. Preferred concentrations of the resultant molybdenum boron and silicon ions are disclosed. A water soluble compound containing a hydroxide is also added to produce an alkaline normality. In a preferred method of manufacture the additive, compounds are added to the working fluid as aqueous solutions.