Liquid refrigerant compositions

A liquid composition comprising

• (A) from about 70 to about 99% by weight of 1,1,1,2-tetrafluoroethane, and
• (B) from about 1 to about 30% by weight of a soluble organic lubricant free of acetylenic and aromatic unsaturation and comprising a cyclic compound characterized by the following structure ##STR9## where R is H, a hydrocarbyl group having 5 to about 15 carbon atoms, or --R.sup.2 COOR.sup.1 wherein R.sup.1 is H or a lower hydrocarbyl group and R.sup.2 is an alkylene group,
• X is O or NR.sup.3,
• Y is C.dbd.O, CH.sub.2 or C.dbd.N--R.sup.5,
• R.sup.3 is H, a hydrocarbyl group, --R.sup.8 NR.sup.9 R.sup.10 or an alkylene group joined to R.sup.5 when Y is C.dbd.NR.sup.5 to form a cyclic moiety,
• R.sup.5 is H or an alkylene group joined to R.sup.3 when X is NR.sup.3 to form a cyclic moiety,
• R.sup.8 is an alkylene group, and
• R.sup.9 and R.sup.10 are hydrocarbylene groups joined together to form a cyclic moiety provided that when Y is CH.sub.2 and X is NR.sup.3, R.sup.3 is not a hydrocarbyl group.

A liquid composition comprising:

• (A) about 70 to about 99 percent by weight of a fluorohydrocarbon having one or two carbon atoms;
• and
• (B) about 1 to about 30 percent by weight of a soluble lubricant having the formula:
• ##STR12## wherein R is H, a hydrocarbyl group, or R.sup.2 COOR.sup.1 wherein R.sup.1 is H or a lower hydrocarbyl group and R.sup.2 is an alkylene group;
• R.sup.3 is H, a hydrocarbyl group, R.sup.6 OR.sup.7 where R.sup.6 is an alkylene group and R.sup.7 is H or a hydrocarbyl group;
• or R.sup.8 NR.sup.9 R.sup.10 where R.sup.8 is an alkylene group and R.sup.9 and R.sup.10 are independently H or hydrocarbyl groups or R.sup.9 and R.sup.10 are hydrocarbylene groups joined together to from a heterocyclic moiety.