Polyester (POE) Oil
Polyol Ester is also hygroscopic
No, oil is not hygroscopic. Oil does not have a tendency to absorb or attract water molecules from its surroundings like hygroscopic substances do.
One of the refrigerant oils that has hygroscopic properties include Argamine - 15N4. It has multiple other synonyms such as Arginine - 15N4 Hydrochloride. It is a thick oil that is white in appearance.
Floc in refrigeration oil is wax that has separated out from oil containing parathene.
Sodium chloride is hygroscopic, absorb water.
Oil
What is the Material compatibility in relation to refrigeration oils?
Oil in a AC compressor is there so that the mechanical parts don't over heat from friction
To return oil to the compressor.
mineral oil
The compressor oil
Non-Hygroscopic