Document K6v4JXwdaDDdJQvz6p6rm2Nx0

BACK TO MAIN SOLUBILITY TEST SUBSTANCE Identity: Decafluoro(pentafluoroethyl)cyclohexanesulfonate, DEA salt; may be referred to as CS-2070. When dissolved in water may also be referred to or as CS-2151 or FC-90. (DEA salt of perfluoro(ethylcyclohexyl) sulfonate, [C2F5-CF(CF2CF2)2CFSO3-][H2N(CH2CH2OH)2+]) Remarks: The 3M production lot number was not noted. The test sample is CS-2070. It is described as the "dried solid from CS-2151, which is 25% solids in water." The sample purity was not characterized. METHOD Method: Not noted. GLP (Y/N): No Year (study performed): 1981 Analytical method: Not noted. Test temperature: Not noted. Diluents: Water (at 3 pH values), methanol, ethanol, n-octanol, acetone Remarks field: Amounts of CS-2070 were paced in vials and various solvents were added to make 5% solutions, or buffered aqueous solutions were added to make 25% solutions. RESULTS___________________________________________________ Solvent Initial Concentration Water (pH 7)* Water (pH 4)* Water (pH 9)* Methanol Ethanol n-Octanol Acetone * Buffered solutions. 25% 25% 25% 5% 5% 5% 5% Description of Solubility >25% 12% 7% >5% >5% >5% <9% CONCLUSIONS The CS-2070 solubility in neutral, buffered water is characterized as being >25%. Submitter: 3M Company, Environmental Laboratory, P.O. Box 33331, St. Paul, Minnesota, 55133 DATA QUALITY____________________________________________ Reliability: Klimisch ranking = 3. There is no information that indicates what method of analysis was used to determine CS-2070 concentrations. Sample purity was not properly characterized. The solubility in acetone is listed as "<9%" when the concentration tested is indicated to be only 5%. REFERENCES______________________________________________ This study was conducted by the 3M Company, Commercial Chemicals Analytical Report #247, 1981. OTHER__________________________________________________ Last changed: 4/01/01