| 摘要 |
PROBLEM TO BE SOLVED: To provide a refrigerator oil, in a refrigerating system using a fluoropropene refrigerant and/or a trifluoride iodine methane refrigerant, capable of attaining both of refrigerant compatibility and thermal-chemical stability on high standards, and an actuation fluid composition for a refrigerator.SOLUTION: Provided is a refrigerator oil comprising the ester of fatty acid in which the ratio of branched fatty acid having the carbon number of 5 to 9 is 50 to 100 mol% and polyhydric alcohol, and used together with a fluoropropene refrigerant. Also provided is an actuation fluid composition for a refrigerator comprising: the ester of fatty acid in which the ratio of branched fatty acid in which the number of carbon is 5 to 9 is 50 to 100 mol and polyhydric alcohol and fluoropropene refrigerant.SELECTED DRAWING: None |
