Document OJqwMgbNxeD8yYJrpd1MwgVYp

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 not noted. 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: 1972 Contact time: 26 days Inoculum: Not noted. RESULTS Chemical Oxygen Demand (COD): 32,000 mg/L Biochemical Oxygen Demand (BOD): 26-Day: No BOD 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 method followed; only a summary sheet is 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 1231 OTHER___________________________________________ Last changed: 3/31/01