| 摘要 |
<p>A non-azeotropic (zeotropic) composition comprising (A) at least one hydrofluorocarbon selected from the group consisting of 1,1,1,2-tetrafluoroethane (R-134a), 1,1,2,2-tetrafluoroethane (R-134) and 1,1-difluoroethane (R-152a) and (B) at least one hydrofluorocarbon having a boiling point in the range of from 5 to 50 °C is described. The composition is useful as a refrigerant and may be used in chillers as a replacement for refrigerant R-11.</p> |
