ABSTRACT

This chapter briefly discusses the application, chemical properties and physical properties of freon 113. It presents detailed information on the air analysis and analysis of aqueous samples of freon 113. Freon 113 is colorless liquid with a characteristic odor, insoluble in water and miscible with organic solvents. It is used as a refrigerant and dry cleaning solvent, and also for extracting oil, grease, and hydrocarbons in chemical analysis. During analysis of aqueous samples of freon 113, an aliquot of sample is purged with He and the analyte is adsorbed over a trap (Tenax or equivalent). Then, the analyte is desorbed from the trap and transported onto a GC column for separation from other volatile compounds by a halogen-specific detector (ECD or HECD) or a mass spectrometer. During air analysis of freon 113, air is drawn through coconut shell charcoal.