Document RJ0vJ9v2Z1XXb0Opr7z9ov1GB

MELTING POINT TEST SUBSTANCE Identity:N-ethylperfluorooctanseulfonamidoethanol;may alsobe referredtoas N-ETFOSE Alcoholor FM-3422. (1-Octanesulfonamide,N-ethyl1,1,2,2,3,3,4,4,5,5,6,6,7,7,8,8,8-heptadecafluoro-N-(2-hydroxyethyl)-, CAS # 1691-99-2) Remarks: Materialisan off-whitew,axy solidofuncharactedzed purity.Itwas characterizedas being stableatroom temperature. METHOD: Method followed: OECD GuidelineNo. 102 (capillary/metbalock)usinga BCjchiB-545 MeltingPointApparatus. GLP: No Year study was performed: November 19,1999 Remarks: A glassmeltingpointcapillarwyas filletdoa heightofabout 1.5cm withthetest substance,packingitdown witha stainlessteelrod. The instrumentwas setfor20OC/min heatingrateinorderto determinethe approximatemeltingpoint(560C),as determinedby the instrumentsautomatic meltingpointdetection(based on opticatlransmission). Next the instrumentwas setfor0.1*C/min heat rate,startinagt54*C. There was no signofdecomposition or sublimationofthe sample. The BUchi instrumentwas lastcalibratedon November 2, 1999, usingVanillin (mp 81.50C),Phenacetin(mp 134.6*C),and Caffeine(mp 235.90C)meltingpoint standards.The measured meltingpointsforVanilliannd Phenacetinwere within the 0.2*C accuracyspecificatioonfthe standardsamples. The Caffeinemelting pointwas measured at235.40C,so the instrumentshigh-temperaturecalibration pointwas adjustedatthattime to agree withthe 235.90C standardvalue.The. recommended calibratioinntervailsI year. RESULTS The automatic meltingpointdetectionat0.1OC/min showed a meltingpointof 59.60C. However, the sample was visuallyobserved to have a meltingpoint range,startinagt550C and finishinagt600C, withmost ofthe meltingoccum'ng at 59.60C. CONCLUSIONS The factthatmeltingoccurredovera range indicatetshe likelpyresence of impurities. DATA QUALITY ReliabilityK:limischranking= 2. Sample puritwyas notsufficiently characterized. No informatioonn theproductionlotnumber ofthe sample was provided,nor was any informatioonn thepuritoyfthesubstanceindicated. Testingwillbe redoneusinga purifiesdample ifpurificaticoann be propedy done. Experiencehas concludedthatpurificatigoennerallyleadstoa reduction intheconcentratioonfhigherand lowermolecularweight homologues, as well as,potentiallay,change intherelativceompositionoftheisomers. ..REFERENCES 3M InternaClorrespondence from Steven P. Bdnduse, SMMD Analytical LaboratoryS,ubject:MeltingPointofN-EthylFOSE Alcohol,November 22, 1999 OTHER Submifter: 3M Company, EnvironmentalLaboratory,P.O. Box 33331, St.Paul, Minnesota,55133 Last changed: 5/18/00 3M interncoarirespondence To: ScottB. Strand,3M EnvironmentalTechnology & SafetyServices 778-7644, Building02-3E-09 From: Steven P. Brinduse *236-2B-11* 736-1007 736-6377(fax) SMMD AnalyticaLlaboratory Date: November 22, 1999 Subject: MeltingPointof FM-3923 N-EthylFOSE Alcohol A sample ofFM-3923 was submittedformeasurement ofmeltingpoint. MeltingPointwas determinedusinga BOchi B-545 MeltingPointApparatus.A glass meltingpointcapillarwyas filletdo a heightofabout 1.5cm withthetestsubstance, packingitdown witha stainlessteelrod. The instrumentwas setfor20OC/min heatingrateinordertodeterminethe approximate meltingpoint(560C),as determinedby the instrument'asutomaticmeltingpoint detection(basedon opticatlransmission). Nexttheinstrumentwas setfor0.1'C/minheatrate,startinagt540C. The automatic meltingpointdetectionshowed a meltingpointof 59.6"C. However, thesample was visualloybserved to have a meltingpointrancies,tartinagt550C and finishinagt600C, withmost ofthe meltingoccurringat59.60C. There was no signofdecompositionor sublimationofthesample. The BOchi instrumentwas lastcalibrateodn November 2, 1999,usingVanilli(nmp 81.5'C),Phenacetin(mp 134.60C),and Caffeine(mp 235.90C)meltingpointstandards. The measured meltingpointsforVanilliannd Phenacetinwere withinthe:tO.20C accuracyspecificatiofnthestandardsamples. The Caffeinemeltingpointwas measured at235.40C,so the instrument'hsigh-temperaturcealibratiopnointwas adjustedatthattimetoagree withthe235.90C standardvalue.