AZEOTROPIC AND/OR AZEOTROPELIKE MISTURES AND REFRIGERATION OR AIR CONDITION SYSTEMS USING THEM AS WORKING FLUIDS

摘要

The invention relates to an azeotropic and/or azeotrope-like mixture comprising 1,1,2,2-tetrafluoroethane and 1,1-difluoroethane, the amount of the latter compound being less than 30 mol %, and a refrigeration or air conditioning system using the above-mentioned mixture as the refrigerant.