Document R5OGEbBGG0RpqbBnVXDD53bE

BACK TO MAIN BIODEGRADATION (BOD/COD) TEST SUBSTANCE Identity: Potassium Decafluoro(pentafluoroethyl)cyclohexanesulfonate may also be referred to as FC-98. (CAS # 67584-42-3) Remarks: The 3M production lot number was 315. The test sample is FC-98. Its purity was not sufficiently characterized, though current information indicates it is a mixture of 66-70% test substance, 18-22% potassium decafluoro(trifluoromethyl)cyclohexanesulfonate, 9-13% potassium nonafluorodi(trifluoromethyl)cyclohexanesulfonate, 1-3% potassium perfluorocyclohexanesulfonate, and a trace of residual organic fluorochemicals. METHOD:__________________________________________________ Method: Not noted. Type: Aerobic GLP: No Year completed: 1977 Contact time: 20 days Inoculum: Not noted. RESULTS____________________________________ Total Organic Carbon (TOC): 119,000 mg/Kg Chemical Oxygen Demand (COD): <4,000 mg/Kg Biochemical Oxygen Demand (BOD): 20-Day: <3,800 mg/Kg CONCLUSIONS No conclusions given. Submitter: 3M Company, Environmental Laboratory, P.O. Box 33331, St. Paul, Minnesota, 55133 DATA QUALITY____________________________________________ Reliability: Klimisch ranking = 4. Study lacks description and records of the methods followed; only summary sheets are available. The inoculum was not properly characterized. There is a lack of characterization of the test sample purity and the study lacks analytical confirmation of the amount of fluorochemical proportion in the test . BACK TO MAIN REFERENCES_____________________________________ This study was conducted by the 3M Company, Environmental Laboratory, St. Paul, MN, Lab Request number 3844 OTHER___________________________________________ Last changed: 3/31/01