mixture of pseudo azeotropica clorodifluorometano, committee, trifluoroe - tano and pentafluoroetano, and its application as a fluid frigorigeno refrigeration in low temperature

摘要

to replace the mixture azeotropica of clorodifluorometano and cloropentafluoroetano (r - 502) refrigeration at a low temperature, the invention proposes to use a mixture of pseudo azeotropica containing mass from 45 to 50% of clorodifluorometano, from 44 to 48% of 1,1,1-trimethylol-p trifluoroetano and from 6 to 8% of pentafluoroetano.the thermodynamic properties of the mixture are very close to those of the mixture of r - 502.