FIELD: chemistry.
SUBSTANCE: composition contains 10-95 wt % of trans-1,3,3,3-tetrafluoropropene (R-1234ze(E)), 4-30 wt % of carbon dioxide (R-744) and 3-60 wt % of the third component, containing difluoromethane (R-32) and optionally 1,1,1,2-tetrafluoroethane (R-134a). The composition has the critical temperature higher than 70°C.
EFFECT: good cooling ability and energy effectiveness, low ignitability and low global warming potential in comparison with existing refrigerants.
50 cl, 3 dwg, 92 tbl
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