Stabilising R123(a) chloro-fluoro-hydrocarbon(s) against reaction with cold machine oil - using di:oxta:decyl-di:sulphide and or specified tetra-phenol and tris-2-tert-butyl 4 thio-2-methyl-4-hydroxy-5-tert.-butyl-phenyl-5-methyl-phenyl phosphate

摘要

Stabilisers consist of mixt.of at least one of CF3-CHCl2 (R 123) and CClF2-CHClF (R 123a) and, as stabilisers, at least one of dioctadecyl-disulphide (I), bis-(3,3-bis-(4'-hydroxy-3'-tert. butylphenol)butaneacid)-glycol ester (II), and tris-(2-tert.butyl-4-thio (2'-methyl-4'-hydroxy-5-' tert.butyl) phenyl-5-)phenylphosphite (III). The mixt. contains 0.01-10 wt.%, pref. 0.3-1 wt.% of the stabilisers. USE/ADVANTAGE - Stabilisation against reaction with cold machine oil used as lubricant in refrigeration uses. The stabilisers are not spontaneously inflammable, do not tend to explode, and are not sensitive to air.