MEASUREMENTS AT HIGH DILUTION - ECOLOGICAL SIGNIFICANCE

The solubilities Of chloro-fluoro-hydrocarbons were determined with 4 different methods first in technical solvents (NMP, DMF and PEGDME) an d second in octanol, triglyceride (oil) and water. The results are imp ortant for process design of gas purification systems or, respectively , for the estimation of the bioconcentration factor which indicates th e accumulation of a substance dissolved in water in an organism living in water. Experimental methods and equipment are explained. Results a re presented in diagrams showing Henry and limiting activity coefficie nts as function of temperature and composition.