Chemical Name or Components: R-22 (100%) Chlorodifluoromethane
Pressure Temperature Chart: R-22
Best for use in: Although phased out, R-22 is still available and 100% legal to buy and sell. It is the dominant refrigerant in residential and commercial air conditioning and in large centrifugal chillers for air conditioning and industrial air process cooling. Since 2010, R-22 is no longer allowed in new equipment but is still available in existing systems.
Common Alternative: R-410A, R-407c, R-422b, R-422c, R-134a, R-507