... .can make blend refrigerants such as R404, R408, R507. 3.High Purity 1,1,1-Trifluoroethane, or R-143a or simply trifluoroethane ... and is therefore not an ozone-depleting chemical, though its high chemical stability and infra-red absorbency make it a potent ... propellant in canned air products used to clean electronic equipment. High quality R143a gas