FIELD: chemistry.
SUBSTANCE: invention relates to a composition which is close to azeotropic, which is used particularly as a coolant, propellant, foaming agent and heat carrier, containing trans-1,3,3,3-pentafluoropropane (transHFO-1234ze) and a compound which is selected from a group consisting of 1,1-difluoroethane (HFC-152a), 1,1,1,2,3,3,3-heptafluoropropane (CHFC-227ea), 1,1,1,2-tetrafluoroethane (HFC-134a), 1,1,1,2,2-pentafluoroethane (HFC-125). The invention also relates to methods of using the composition which is close to azeotropic.
EFFECT: composition with low ozone depletion potential.
53 cl, 4 tbl, 4 ex
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