- The viscosity and other properties of the oil-refrigerator solution, even for partially miscible refrigerants, are quite different than for those qualities of the oil in its pure form
- In its gas form the refrigerant dissolves in the oil
- In its liquid form/ the oil is dissolved in the refrigerant
- When oil mixes with refrigerant viscosity decreases
- Oil return improves with lower viscosity
- Amount of refrigerant dissolved in oil changes viscosity as much or more than temperature
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