| 摘要 |
To provide a lubricant base oil for a refrigeration system, which has an appropriate viscosity and an appropriate compatibility with a hydrocarbon refrigerant. A lubricant base oil for a refrigerant consisting essentially of a C 1-8 hydrocarbon compound, wherein the lubricant base oil is a polyoxypropylene monohydrocarbyl ether having a number average molecular weight of from 500 to 3200, and the hydrocarbyl group has from 6 to 32 carbon atoms.
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