REFRIGERANT COMPOSITIONS AND LOW GLOBAL-WARMING-POTENTIAL BLENDS

摘要

A chemical blend includes 1,1,1,4,4,4-hexafluorobutene and at least one balancing solvent. The balancing solvent is at least one hydrofluoro-olefin, ethylene chloride, methylene chloride, ammonia, at least one ester, at least one hydrocarbon, at least one fluoroether, or a combination thereof. The chemical blend is a substantially-azeotropic blend with a low global warming potential. A method retrofits equipment designed to run with a predetermined refrigerant having a refrigerant molecular weight. The method includes combining cis-1,1,1,4,4,4-hexafluoro-2-butene with at least one balancing solvent to form a replacement refrigerant blend having a blend average molecular weight within 3% of the refrigerant molecular weight. The method also includes placing the replacement refrigerant blend in the equipment in place of the predetermined refrigerant.