Disclosed herein are refrigerant and heat transfer fluid compositions comprising 1,1,1,2,2,4,5,5,5-nonafluoro-4-(trifluoromethyl)-3-pentanone and at least one hydrocarbon. These compositions are useful in refrigeration and air conditioning systems that employ a centrifugal compressor. Also disclosed herein are azeotropic or near azeotropic refrigerant and heat transfer fluid compositions comprising 1,1,1,2,2,4,5,5,5-nonafluoro-4-(trifluoromethyl)-3-pentanone and at least one hydrocarbon.
                            本文公开了由 1,1,1,2,2,4,5,5,5-壬
氟-4-(三
氟甲基)-
3-戊酮和至少一种碳氢化合物组成的制冷剂和导热流体组合物。这些组合物适用于采用离心压缩机的制冷和空调系统。本文还公开了共沸或近共沸制冷剂和导热流体组合物,该组合物包含 1,1,1,2,2,4,5,5,5-二
氟-4-(三
氟甲基)-
3-戊酮和至少一种烃。