Document 0JaBXkLwqzGek6KJKgXnpbEbR

CAS Number 4151-50-2 3M Company Voluntary Use and Exposure Information Profile N-ethyl perfluorooctanesulfonamide I. CHEAUCAL IDENTIFICATION Chemical Name: CAS Number: N-ethylperfluorooctanesulfonain(iEdTeFOSA) 4151-50-2 H. COMIPANY IDENTIFICATION Company Name: 3M SiteLocation: 10746 InnovationRoad CottageGrove,MN 55016 1400 StateDocks Road Decatur,AL 35601 TechnicalContact: W.A. Weppner Phone: 651/733-6374 Address: 3M Center,Building236-IB-10 St.Paul,MN 55144 111. ON-SITE ACTMTIES CAS # MfLy.(1997) Imported 4151-50-2* < 100,000lbs. 0 Estimate the amount of subject chemical distributed off-site: 59% of manufacture/import *Submitted in 1998 TSCA IUR. Significantproduction occurs thatisnon-isolatedand nonreportabluender TSCA. Ifyou have already provided the above informationto EPA and itisstilrlepresentativeplease referencethatsubmission here: CAS Number 4151-50-2 3M Company 2 Narrative Description and Process Flow Schematic: 3M Company utilizes a process known as Simons Electro-Chemical Fluorination (ECF) to synthesize organofluorinemolecules. In thisprocess,organic feedstocksaredispersedin liquid,anhydrous hydrogen fluoride,and an electricurrentispassed through the solution,causing the hydrogen atoms on the molecule to be replacedwith fluorine.The predominant components of the products created by thisprocess have the same carbon skeletalarrangement as the feedstockused, but with allof the hydrogen atoms replacedby fluorine.However, fragmentationand rearrangement of the carbon skeletoncan alsooccur and significanatmounts of cleaved,branched and cyclicstructuresmay be formed. The degree of fluorinationof the organicfeedstockisalsodependent upon the specific carbon chain length of the feedstockand parameters of the ECF process such as electricaclurrentand the lengthof time theprocess isrun. Itispossibleto synthesizefullyfluorinatedor perfluoroorganic molecules where allof thehydrogen atoms of thehydrocarbon feedstockhave been replaced by fluorineatoms. Using theseperfluoroorganicmolecules as basic buildingblocks,unique chemistries can be createdby furtherreactionswith functionalizedhydrocarbon molecules. 3M has produced sulfonylbased fluorochemicalscommercially forover 40 years using the ECF process. A basicbuildingblock of such productsand the highestproductionvolume fluorochemical 3M manufactures isperfluorooctanesulfonyflluoride(POSF). The startinfgeedstockforthisreaction is 1-octanesulfonylfluoride. (Reaction1) Reaction I C8Hl7SO2F + 17 HF I-Octanesulfonylfluoride Energy ------->-- C8Fl7SO2F + 17 H2 ECF Perfluorooctanesulfonyflluoride The electrochemicalfluorinatiopnrocess yieldsabout 35%-40% straightchain (normal)POSF, and a mixture of biproductsand waste of unknown and variablecomposition comprised of the following: 1) higherand lowerstraight-chahionmologs,i.e.n,-CnF2n+IS02F,e.g.C,6Fl3SO2F, C7Fl5SO2F, C9Fl9SO2F which compriseabout7% oftheprocessoutput 2) branched-chain,perfluoroalkylsulfonyflluorideswith variouschain lengths,about 18-20% of the output 3) straight-chainb,ranched, and cyclic(non-f-Lmctionalp)erfluoroalkanesand ethers,which comprise about 20-25% of the output 4) "tars"(highmolecular weight fluorochemicalbyproducts)and otherbyproducts,includingmolecular hydrogen, which comprise about 10-15% of the output. Because of slightdifferencesin process conditions,raw materials,and equipment, themixture produced by the electrochemicalfluorinatiopnrocessvariessomewhat from lot-to-loatnd from plantto-plantT.he product thatresultsfrom electrochemicalfluorinatioinsthus not a pure chemical but rathera mix of isomers and homologues. The commercialized POSF derivedproducts area mixture of approximately 70% linearPOSF derivativesand 30% branched POSF derived impurities. CAS Number 4151-50-2 3M Company 3 During production,byproducts and waste products areformed. The volatilewaste products,such as perfluoromethane, have been vented to the atmosphere in the past,but plans are being implemented to captureand destroythesereleasesby thermal oxidationover thenext few years. The tarshave been landfilledin a hazardous waste landfillinthe past,but areallcurrentlybeing incineratedatan in-house or externalhazardous waste incinerator.The byproducts,many of which areincompletely fluorinatedwith hydrogen atoms stilplresent,can be recycledback intothe ECF process or are partiallydegraded in stabilizatiopnrocessesand dischargedto controlled,in-house,wastewater treatmentsystems. The treatmentsludgeassociatedwith theECF process has been eitherlandfilled or land-incorporatedin the past,but allof thistreatmentsludge isbeing landfilledoff-sitesinceearly 1998. POSF isitselaf commercially viableproduct,but isprimarilyan importantintermediateinthe synthesisof substancesused in many other 3M fluorochemicalproducts. The majority isused to produce functionallyderivatizedfluorochemicalsand high molecular weight polymeric products. Unique chemistriescan be createdby derivatizingPOSF through the sulfonylfluoridemoiety of the molecule using conventionalhydrocarbon reactions.POSF isreactedwith methyl or ethyl amine to produce eitherN-methyl or N-ethylperfluorooctanesulfonamide(MEFOSA or ETFOSA). Some of the MEFOSA and ETFOSA isisolatedto be used as intermediatesto be reactedto form othermaterials. The majority of the MEFOSA and ETFOSA isnot isolatedand subsequentlyreactedwith ethylene carbonateto form eitherN-methyl or N-ethylperfluorooctanesulfonamido ethanol.These arethe principalbuildingblocks of the 3M product lines. CAS Number 4151-50-2 3M Company 4 The followingblock flowdiagram describesthe processdiscussedabove. BLOCK FLOW DIAGRAM Electro-ChemicaFlluorinatioCnells (Octanesulfonyfluorid+eIHF+ electriceanlergy) Perfluorooctanseulfonyflluoride (POSF) Perfluorooctanseulfoniaccid (PFOS) SecondaryReactors I v Surfactants Ve ous commercialized intermediates and s actants IF Amp. loteric surfactants (FireFighting Foams) N-ethyl(andmethyl) perfluorooctanesulfonamide N-el . I Ldmethyl) perfluorooctane- sulfonamidoethanol AdditionalSecondary Reactors Phosphate Estersand Acrylate/polymers (Paper& Packaging) Acrylatepolymers Adipateadducts Urethanepolymers (Carpetand Textile Protection) Various commercialized intermediates and surfactants CAS Number 4151-50-2 3M Company 5 IV. SITE RELEASE AND TRANSFER INFORMATION FOR TRI CHEMICALS Not applicable. V. SITE RELEASE AND TRANSFER INFORMATION FOR NON-TRI CHEMICALS While analyticalmethods have improved over time, large variabilitystillexistsfor certainmatrices and compounds, so dataavailableforthisreportismostly of a qualitativneature.Although limited monitoring data exists,most emission and waste estimatesare based upon process models and engineeringcalculations.Engineering calculationsh,owever, have limitationswith respectto fluorochemicalsbecause fluorochemicallosseswere not always included in the analysisof each intermediatestep. The accuracy of the emissions datasubmitted variesdue to severalfactors.Batch process systems are difficultto measure due to quickly changing processconditions,venting pressuresand difficulty in isolatingprocessesto take measurements. Additionally,the unique characteristicosf these compounds cause them to behave differentlfyrom conventionalcompounds, and physicalchemical datapropertiesare not availablefor allintermediatereactionstepsin the past. A. ON-SITE AIR RELEASES ALL PLANTS - Fugitiveemissionsmay occur from vacuum chargingfrom drums, sampling from reactors,drumming of product/intermediatef,lakingmonomer, drying operations. Materialsmay be handled in a molten or solidstate;vapors areproduced from molten material. Industrialhygiene monitoring has been conducted forsome compounds. Some minor amounts of thesecompounds have been detectedas fugitiveemissions during industriahlygiene exposure testing. Decatur,AL Wastewater fugitiveemission data was based upon wa@tewater testing. Emission estimatesare based upon existingprocess models and engineeringcalculationsfrom the facilityF.ugitiveemissions may have occurred during some handling stepsbut have not been quantified. EstiiinateTdotal Annual Releases (lbs.) Estimated % Accuracy of days/years releaseoccurs Estimate(optional) Fugitiv-e (non-point) < 40 in1997 250 < 40 in 1999 Stack (point) Estimated Total Annual Releases (lbs.) (1997) <1 Estimated % days/years Accuracy of releaseoccurs Estimate (optional) 250 CAS Number 4151-50-2 3M Company 6 CottageGrove Emission estimatesarebased upon existingprocessmodels and engineeringcalculationfsrom thefacilityF.ugitiveemissionsmay have occurredduringsome handlingstepsbuthave not been quantified. Estimated Total Annual Releases (lbs.) (1997) Estimated % Accuracy of Estimate (optional) days/years release occurs Fugitive (non-point) No dataavailable. <10 Stack (point) No dataavailable. <10 Comments: CAS Number 4151-50-2 3M Company 7 B. WATER RELEASES FROM SITE Decatur, AL The datapresentedispartof wastewater testingconducted in 1998, sincethe individual compounds of intereswtere not analyzed in the 1997 wastewater materialbalance due to method availabilitaynd initiaplrojectfocus. The 1998 datahas not been adjustedfor production levelsin 1997, sincemost productionremained at similarlevels. Itisnot possibleto distinguishthe amount of chemicals generated from specificreactionsteps inproduction of variouscompounds, or whether theirpresence may be the resultof hydrolysis of more complex molecules. Estimated Total Annual Releases (lbs.) (1997) Estimated % Accuracy of Estimate (optional) Water releases: 140 Number of days/year releaseoccurs: 250 Receiving Water Name: Baker's Creek atthejunctionwith the Tennessee River NPDES Number: ALD004023164 Comments: Cottage Grove, MN Engineering calculationswere used to estimatethe amount of materialdischargedto wastewater. The amount of materialdischargedto theriverwas determined through use of existingremoval efficiencytestingresultsfrom another facility. Estimated Total Annual Releases (lbs.) (1997) Estimated % Accuracy of Estimate (optional) Water releases: 0 Number of days/year releaseoccurs: Receiving Water Name: NPDES Number: Comments: CAS Number 4151-50-2 C. ON-SITE LAND RELEASES 3M Company Decatur,AL The landtreatmentofDecatursludgewas discontinueidn early1998. Sludge isnow transportetdo an offsitleandfilalf,terpassingthrougha thickenerand a sludgepress.An impoundment was used in 1997 aspartofthewastewatertreatmentoperationbut isnow only used forback-up operation.Levelsofthecompound inthesludgewere determinedfrom wastewater data. Estimated Total Annual Releases (lbs.) (1997) Estimated % Accuracy of Estimate (optional) Landfill Land Treatment/Land Amendment Surface Impoundments Underground Injection Other (specify): 0 0 No data available/No longer used 0 Comments: Cottage Grove, MN Sludge from the Cottage Grove facilitiyssentto an off-sitiendustrialandfill Estimated Total Annual Releases (lbs.) (1997) Estimated % Accuracy of Estimate (optional) Landfill 0 Land Treatment/Land Amendment 0 Surface hnpoundments 0 Underground Injection 0 Other (specify): Comments: CAS Number 4151-50-2 3M Company 9 C. OFF-SITE TRANSFERS Decatur,AL Process wastewatersaremanaged inan on-sitewastewater treatmentfacilitaynd arenot sent to thePOTW. Dl. TransfertoPubliclyOwned Treatment Works (POTW) Number of days/yearthe releaseoccurs: Annual TransferOb): 0 Estimated% Accuracy ofTransferEstimate(optional()%): POTW Name: StreetAddress: City: StateNPDES Number: Country: Zip Code: Comments: CAS Number 4151-50-2 3M Company 10 CottageGrove,MN Processwastewatersaremanaged inan on-sitewastewatertreatmentfacilitaynd arenot sent to thePOTW. DI. TransfertoPubliclyOwned TreatmentWorks (POTW) Number ofdays/yearthe releaseoccurs: Annual Transfer(lb):0 Estimated% Accuracy ofTransferEstimate(optional) POTW Name: StreetAddress: City: State: NPDES Number: Country: Zip Code: Comments: CAS Number 4151-50-2 D2. TRANSFERS 3M Company TO OTHER OFF-SITE LOCATIONS General Waste Information:There islimitedinformafionby CAS number forcompound specifirceportingand off-sitreeleasecsannotbe readilyverifiedR.atherwastes areclassified by halogencontentr,egulatorywaste codes,physicalpropertieasnd non-specific fluorochemicalcategoriesW.here wastesaretrackedby CAS number, theamounts have been included. Decatur,AL A reviewof plantrecordsregardingwastedisposalocationfsorDecaturfluoride-containing wastesindicatetshat70% isdisposedthroughincinertaionatvariousoff-sitleocationsand approximately30% islandfilleadta hazardouswastel* andfillI.ncineratioinsnow the predominant disposalmethod forthesematerials. Estimated Total Annual Releases Obs.) Estimated % Accuracy of Estimate (optional) Incineration: No specifiCcAS number dataavailable. Wastewater Treatment (Excluding POTW) Underground Injection Hazardous Waste (RCRA SubtitleC) landfill Other Landfill 0 0 No specificCAS number dataavailable. No specificCAS number dataavailable. Recycleor Recovery 0 Unknown or Other Comments: Cottage Grove, MN CottageGrove facilituytilizeisncineratiofnoralltheirdrummed wastes. Sludgefrom theCottageGrove facilitiyssentto an industriallandfill. CAS NuLinber4151-50-2 Incineration: 3M Company 12 EstimatedTotal Annual Releases Obs.) Estimated% Accuracy of Estimate (optional) No specificCAS number data available. Wastewater Treatment 0 (ExcludingPOTW) Underground Injection 0 Hazardous Waste (RCRA 0 SubtitleC) landfill Other Landfill 0 Recycle or Recovery 0 Unknown or Other 0 Comments: CAS Number 4151-50-2 3M Company 13 VI. ON-SITE WORKPLACE EXPOSURE 3M Co=My. SpeciallyMaterialsManufacturing Division,Cottage Grove, MN This information willassistEPA in characterizing the number of workers potentiallyexposed and the magnitude, frequency, and duration of potentialexposure. When providing monitoring data, ensure that data islinked with worker activitiesdescribed in question 2. 1. Estimate the number of workers potentiallyexposed routinely to the subject chemical for each of the exposure duration times. If a worker isinvolved in more than one activity,enter only his/her most typicalactivityin the table. Don't count a worker more than once. The totalnumber in the table should equal the totalnumber of workers potentiallyexposed. Hours/Day <10 <.25 6 .25-1 2 1-8 4 >8 1 Days/Year 10-100 100-250 >250 1 1 1 2. Describe sampling, the routine worker activities to which removal of Mter cake, and drumming the workers of liquids, in question manufacture 1 are exposed: an article, etc. For these activities, describe the physical state of the subject chemical (liquid, gas, particulate, or aerosol, etc.) and, if in a mixture, the chemical's concentration: Vacuum charging from drums, sampling from reactor, drumming of product/intermediate, maintenance (changing flange,hose, pipe,valve,filterp,ump or sightglass);materialsmay be handled in a molten or solidstateor dissolvedin organicsolvents;vapors areproduced from molten material;approximate concentrationranges from <1% to 80%. CAS Number 4151-50-2 3M Company 14 3. Provide industrialhygiene monitoring data, ifavailable,with a briefdescription of the sampling method and exposure scenario monitored, e.g.,describe the specificworker activitiesperformed by the individuals monitored. For privacy considerations, please do not include any personal identifiers such as a worker's name or social security number with any data submitted to EPA. There is no chemical-specific personal industrial hygiene monitoring data or area/source monitoring data forthisspecificmaterialatthisfacilityF.or most areas of thefacilityr,ecent qualitativaessessment of potentialexposure to thismaterialunder 3M's ongoing industrial hygiene program indicatesa low exposure potentialto thismaterial. Each 3M plantthatproduces sulfonatedfluorochemicalshas an industriahlygieniston staffand is supported by a corporateindustriahlygiene group. 3M's industriahlygiene program focuses on task-based exposure assessment and control.Exposures are identifiedand assessedqualitatively and/or quantitativelyQ.ualitativeassessmentsareperformed by an industriahlygienist. Quantitativeassessments includetask-basedpersonalsampling forcertain,specific fluorochemicalsand/or source or area sampling. The resultsof the assessments support decisions on exposure control.Engineering controlsareprefer-redb,ut personalprotectiveequipment may be used on an interimbasisor when effectiveengineeringcontrolisnot feasible. 4. Briefly describe the engineering controlsused to minimize exposure to thischemical: Materialsaretransferredusing closedpiping (where possible)from reactorvesselsto other containers.Vacuum chargingof materialsfrom drums isa standardpractice.Positionablelocal exhaust ventilationhoods are situatedat significanptoint sources such as at drum bungs when drumming. General room airprovidesfordilutionof airbornematerials. 5. Brieflylistthe personal protectiveequipment your workers regularlywear to prevent exposure of thischemical: Process operatingstandardslisthe respirato(re.g.,suppliedair,organic vapor cartridgewith particulatperefiltero,r particulatfeilteringg)l,oveby elastomer(e.g.n,eoprene or nitrile), chemical protectiveclothing(e.g.,2-piecePVC rainsuit)e,ye protection(e.g.,chemical splash goggles with or without fullfaceshielddepending on type of respiratoursed) to be used by the employee when the taskinvolvesexposure to a particulafrluorochemicalmaterial. Comments: desired.) (Tliisectionisavailableto clarifythe responsesgiven. Attach additionalpages if CAS Number 4151-50-2 3M Company 15 3M Coml2!My, Sr)eciallyMaterials Manufacturing Division, Decatur, AL This information will assistEPA in characterizing the number of workers potentially exposed and the magnitude, frequency, and duration of potential exposure. When providing monitoring data, ensure that data is linked with worker activitiesdescribed in question 2. 1. Estimate the number of workers potentially exposed routinely to the subject chemical for each of the exposure duration times. If a worker is involved in more than one activity,enter only his/her most typical activity in the table. Don't count a worker more than once. The total number in the table should equal the total number of workers potentially exposed. Hours/Day <10 <0.25 0.25-1 4 1-8 >8 Days/Year 10-100 100-250 4 24 24 >250 2. Describe the routine worker activitiesto which the workers in question I are exposed: sampling, removal of filtercake, and drumming of liquids,manufacture an article,etc. For these activities,describe the physical stateof the subject chemical (liquid,gas, particulate, or aerosol, etc.)and, ifin a mixture, the chemical's concentration: Vacuum charging from drums, sampling from reactor,drw=ing of product/intermediate, aintenance(changing flange,hose,pipe,valve,filterp,ump or sightglass);materialsmay be handled in a molten or solidstate;vapors areproduced from molten material;material concentrationranges from <1% to 80%. Wastewater treatmentoperations:collectingand analyzingQC samples, operatingfilter press,monitoring process,and maintenance activitiesm;aterialstypicallypresentin waste stream at lessthan I%. CAS Number 4151-50-2 3M Company 16 3. Provide industrial hygiene monitoring data, ifavailable,with a brief description of the sampling method and exposure scenario monitored, e.g.,describe the specificworker activities performed by the individuals monitored. For privacy considerations, please do not include any personal identifiers such as a worker's name or social security number with any data submitted to EPA. Personal sampling for these materials is currently (late 1999 to present) done using OSHA VersatileSampler tubeswith XAD-4 resinand mixed celluloseesteror glassfiberprefilter. Sample analysisisby LC-MS. Previous sampling had employed silicagelacid mist tubes with GC-ECD analysis.See attachedtablefor airsample results. There has been area/sourceairmonitoring data and/orsurfacewipe sampling data collectedfor thismaterialattheplant.Area/source sample resultsand/or surfacewipe sample resultsare used to identifyareaswith employee exposure potentialas partof exposure assessment under 3M's industriahlygiene program and arenot measurements of actualemployee exposures. Hence, they arenot included with thissubmission. Priorto 1999, thesesamples were considered to be semivalidated. Surfaces in production and administrationareaswere sampled in 1998. A glassfiberfiltewretted with methyl alcoholwas wiped insidea 10 cm x 10 cm squarewith analysisby LC-MS. Results indicatedthe presence of thesematerialson floorsand equipment surfacesin production areas. This resultedin improvements to Hazard Communication practicesp,ersonalhygiene emphasis, personal protectiveequipment emphasis, and severalengineeringand administrativechanges. The sample resultsof any airmonitoring arecompared to 3M's voluntaryexposure guideline (EG) of 0.1 mg/m3 (milligramsof fluorochemicalper cubicmeter of air)forvarious fluorochemicalcompounds, includingcompounds covered in thissubmittal.The EG isan 8-hour time-weighted average (TWA) personalbreathingzone exposure chosen to minimi e potentialfor uptake. Each 3M plantthatproduces sulfonatedfluorochemicalshas an industriahlygieniston staffand is supported by a corporateindustriahlygiene group. 3M's industriahlygiene program focuseson task-basedexposure assessment and control.Exposures are identifiedand assessed qualitatively and/or quantitativelyQ.ualitativeassessments areperformed by an industriahlygienist. Quantitativeassessments includetask-basedpersonalsampling for certain,specific fluorochemicalsand/or source or area sampling. The resultsof the assessments support decisions on exposure control.Engineering controlsarepreferred,but personalprotectiveequipment may be used on an interimbasisor when effectiveengineeringcontrolisnot feasible. CAS Number 4151-50-2 3M Company 17 Air Sampline Data for4151-50-2 Job Sample Classfflcation number Concentration Minimum Maximum( (mgim3) (mgim3) mglm3) Chemical Operator Building3 Team Leader Building3 94-031* 94-032* 94-034* 94-037* 94-038* 94-039* 94-041 * 94-046* 94-050* 94-036* 94-047* 94-051 * 94-054* 94-055* Totals <0.005 0.1 0.015 <0.01 <0.005 0.004 0.007 0.013 0.008 0.007 0.005 0.014 <0.02 <0.005 0.012 0.1 Geometric Mean 0.01 Geometric Standard Deviation 2.3 The value forthissample isone ofseveralfluorochemicaalnalytescollectedon the sample. Samples are allpersonalbreathingzone samples taken overthe durationofa specifictask. CAS Number 4151-50-2 3M Company 18 4. Briefly describe the engineering controls used to minimize exposure to this chemical: Materials are transferredusing closed piping (where possible)from reactorvesselsto other containersV.acuum chargingofmaterialsfrom drums isa standardpracticeL.ocal exhaust ventilatiohnoods aresituateadtsignificanptointsourcessuch as atdnun bungs when drununing. Generalroom airprovidesfordilutioonf airbornematerials.Operatorcontrolrooms are segregated from process areasand provided separateroom airventilation. 5. Briefly listthe personal protective equipment your workers regularly wear to prevent exposure of thischemical: Specificpersonal protectiveequipment isindicatedon writtenoperatingprocedures used by process operators. Respiratory protection: Tasks with significantexposure potential(charging,drumming, some maintenance tasks)areperformed using positivepressure,pressuredemand fullface suppliedair respiratorsT.asks with moderate exposure potential(shortterm sampling from tapsor drums, and some maintenance tasks)areperformed using fullfaceair-pufifyinrgespiratorwsith organic vapor cartridgesand P 100 prefilters. Hand protection: All tasksidentifiedas having potentialforhand contactrequireneoprene (Scorpio)or nitriliendustriaglloves. Body protection: Exposure significanttasksuse one ortwo-piecePVC suits.Aprons may be wom forsome low exposure potentialtaskssuch as sampling. Foot protection: Tasks identifieads posing a significanftootexposure potentialrequire chemical resistanbtoots. CAS Number 4151-50-2 3M Company 19 Comments: (This section is available to clarify the responses given. Attach additional pages if desired.) Current exposuresare expected tobe lessthanthosemeasured in therecentpast. Significant sourceshave been identifieadnd eliminated.In 1998 an extensiveareaairsampling of the productionareaswas performed. Areas with higherlevelsofairbornematerialswere investigated ftirthetro identifysources.These sources,which includetheflakingequipment, are inthe processof being eliminatedor reducedthroughreplacementwith betterventilateedquipment. In additiont,heventilatiosnystem intheprimaryproductionbuilding(3)isbeing upgraded. The fluorochemicalhazard communication program was improved upon in 1998. This has resultedin improved exposure avoidance behaviorsamong productionemployees and betteruse of personalprotectivequipment. Additionalhand wash facilitiheasve been installeidnprimary processbuildings.Food conswnption and otherhand-to-mouthactivitieasreprohibited.There isno smoking in process buildings.Process employees areinstructetdoremove and leavetheirwork boots and work coverallsatthe plant.Work coverallsareprofessionalllyaundered. Non-production equipment surfacessuch as floorsd,oorknobs and stairailsarecleaned frequently. CAS Number 4151-50-2 3M Company 20 VII. CHEMICAL END USES A. END USE AS AN INTERM[EDIATE CONSUMED TO MAKE OTHER CHEMICALS Al. On-Site Use as a Intermediate: Fluorinatedalkylsulfonamidesareused as an intermediateintheproductionof fluorinateadlkylalkoxylatesa,nd asan intermediatuesedto make foam tapeadditives. Product chemical class or product chemical (Include CAS number ifappropriate) % of total volume of subject chemical manufactured or imported 1. Fluorinated CAS #68958-61-2 alkylalkoxylate 75-80 As reported in Part III,p.2 A2. Off-SiteUse as an Intermediate Product chemical class or product chemical (Include CAS number ifappropriate) 1. Not Applicable % of total volume of subject chemical manufactured or imported Not Applicable As reported in Part 111,p.2 CAS Number 4151-50-2 3M Company 21 B. END USES OTHER THAN AS A CONSUMIED INTERMEEDIATE Use Number I of 6 Descriptionof Chemical End Use: Chemical formulatorsusethischemicalas a registered activeingredienftorinsectcontrol.Itisblendedwithbaitthatisattractivteoinsectsand placedinbaitstationsE.ithercommercialfacilitioersconsumers can use thesebaitstations. Percentof totalmanufacturedor imported volume goingtothisuse: 19 I Ifused in a mixturecheck appropriatbeox to indicateweight fraction.Average values are acceptable: x <1% (0.5-1.0%) 1-30% 30-60% 60-90% >90% Check allphysicalformsof the chemicalduringthisuse: Aerosol Dry Powder Pelletsor largecrystals Water or solvent- wet solid Gas orvapor Liquid solution X Other (Explain)Waxy Solid Use Number 2 of 6 Description of Chemical End Use: Chemical formulatorsadd thischemical as a surfactant to improve the wettingof protectivecoatings. Percent of totalmanufactured or imported volume going to thisuse: 2 0.5 Check allphysicalforms of the chemical during thisuse: Ifused in a mixture check appropriatebox to indicateweight fraction.Average values are acceptable: X <1% (20ppm) 1-30% 30-60% 60-90% >90% Aerosol Dry Powder Pelletsor largecrystals Water or solvent- wet solid Gas or vapor X Liquid solution Other (Explain) CAS Number 4151-50-2 3M Company 22 Use Number 3 of 6 Descriptionof Chemical End Use: Oilwellserviceformulatorsand oilcompanies use this chemical as a surfactanitna wellstimulationformulathatisinjectedintoan oilwellto enhance the recovery ofoiland gas. Percentof totalmanufactured or imported volume going to thisuse: < I Check allphysicalforms ofthe chemicalduringthisuse: Ifused ina mixture check appropriatebox to indicateweight fractionA.verage values areacceptable: x <1% (500ppm) 1-30% 30-60% 60-90% >90% Aerosol Dry Powder Pelletsor largecrystals Water or solvent- wet solid Gas or vapor X Liquidsolution Other(Explain) Use Number 4 of 6 Descriptionof Chemical End Use: Mining operationsutilizintghesolutionmining process use thischemical as a surfactantoincreasewettingof otherchemicals thatleachthemetals from the ore. Percentoftotalmanufactured or imported volume going tothisuse: < 1 Check allphysicalforms ofthe chemical duringthisuse: Ifused ina mixture check appropriatebox to indicateweight fraction.Average values areacceptable: x <1% (100 ppm) 1-30% 30-60% 60-90% >90% Aerosol Dry Powder Pelletsor largecrystals Water or solvent- wet solid Gas orvapor X Liquidsolution Other(Explain) CAS Number 4151-50-2 3M Company 23 Use Number 5 of 6 Description of Chemical End Use: Powder additiveformulatorsuse thischemical as a wetting agent for thickeners(Carbopol). Percent of totalmanufactured or imported volume going to thisuse: < I Check allphysicalforms of the chemical during thisuse: Ifused in a mixture check appropriatebox to indicateweight fraction.Average values are acceptable: x <1% 1-30% 30-60% 60-90% >90% Aerosol Dry Powder Pelletsor largecrystals Water or solvent- wet solid Gas or vapor X Liquid solution Other(Explain) Use Number 6 of 6 Description of Chemical End Use: A formulator of powder additivesadds thischemical to aidthe gellingof medical waste solutions. Percent of totalmanufactured or imported volume going to thisuse: < 1 Check allphysicalforms of the chemical during thisuse: Ifused in a mixture check appropriatebox to indicateweight fraction.Average values are acceptable: x <1% 1-30% 30-60% 60-90% >90% Aerosol Dry Powder Pelletsor largecrystals Water or solvent- wet solid Gas or vapor X Liquid solution Other (Explain)