| abstract |
The present invention provides a composition for refrigerating machines, which contains a mixed refrigerant and a refrigerating machine oil that contains a base oil (P), and which is configured such that: the mixed refrigerant contains more than 50% by mass but 70% by mass or less of an unsaturated fluorinated hydrocarbon compound (HFO) based on the total amount of the mixed refrigerant, and a saturated fluorinated hydrocarbon compound (HFC); and the base oil (P) contains a polyvinyl ether (PVE). Consequently, this composition for refrigerating machines, which uses a mixed refrigerant, exhibits good refrigerant solubility, while having good dissolution viscosity. |