| abstract |
The mixed composition for refrigerators of the present invention comprises a refrigerant including at least one unsaturated fluorohydrocarbon compound selected from the group consisting of compounds represented by the following molecular formula (1), and a refrigerator lubricating oil, and the refrigerant The lubricating oil contains, as a main component, a polyol ester (A) formed of a fatty acid (a1) and a polyol (a2), wherein the fatty acid (a1) is a fatty acid having 9 to 16 carbon atoms, and a fatty acid having 9 carbon atoms. The fatty acid is 50 mol % relative to the total amount of the fatty acid (a1), the polyol (a2) is pentaerythritol and/or dipentaerythritol, C p F r H s ... (1) [wherein, p is 2~ An integer of 6, r is an integer of 1 to 11, s is an integer of 1 to 11, and the molecule has one or more carbon-carbon unsaturated bonds]. |