| 摘要 |
PROBLEM TO BE SOLVED: To provide a refrigerator oil composition using HFC-based refrigerants, inhibits the decomposition of base oils, does not cause the corrosion of metals, insufficient cooling and the deterioration of insulation performance, and has excellent stability with the passage of time. SOLUTION: This refrigerator oil composition, characterized by comprising an ester oil comprising the dehydrative reaction product of a neopentyl type alcohol with a fatty acid having a specific acid residue as a base oil, a specific acidic component-reacting additive in an amount of 0.1 to 1 wt.% based on the base oil, and a specified water and hydrochloric acid-reacting additive in an amount of 0.1 to 1 wt.%. |
