Document NGnx4575mmqR455p9q2xExmzy

CAS Number 1763-23-1,29081-56-9,70225-14-8,2795-39-3,29457-72-5 /3M Company 4/27/2000 Voluntary Use and Exposure Information Prof*de PerfluorooctaneSulfonicAcid and Various SaltForms I. CIE]EAUCAL EDENTMCATION Chemical Name: CAS Number: PerfluorooctanSeulfonates Various,including: 1763-23-1(acid) 29081-56-9(ammonium salt) 70225-14-8(DEA salt) 2795-39-3(K-salt) 29457-72-5(LiSalt) The perfluorooctanseulfonataenion(PFOS) has no specifiCcAS number. The listesdalts summarize the designatedTierI perfluorochemicaltshatareallconsideredperfluorooetane sulfonates. U. COMIPANY EDENTIFICATION Company Name: 3M SiteLocations: 1) 10746 Innov@tion-Road CottageGrove,MN 55016 2) 1400 StateDocks Road Decatur,AL 35601 TechnicalContact: W.A. Weppner Phone: 651n33-6374 Address: 3M Center,Building236-1B- 10 St.Paul,MN 55144 Ell. ON-SITE ACTIVITIES CAS # Mfg. (1997) hnporte 1763-23-1 0 29081-56-9 Less Than 0 70225-14-8 200,000lb/yr. 0 2795-39-3* 0 29457-72-5 0. Estimatethe amount ofsubjectchemicaldistributeodff-site: 95% ofmanufacture/import *Submittedin 1998 TSCA IUR additionailnformation. CAS Number 1763-23-1,29081-56-9,70225-14-8,2795-39-3,29457-72/-35M Company/ 4/27/2000 2 Narrative Description and Process Flow Schematic: 3M Company utilizesa process known as Simons Electro-Chemical Fluorination(ECF) to synthesize organofluorinmeolecules.In thisprocess,organicfeedstocksaredispersedin liquida,nhydrous hydrogen fluoridea,nd an electriccurrentispassedthroughthesolutionc,ausingthehydrogen atoms on themoleculeto be replacedwith fluorineT.he predominantcomponents of theproductscreated by thisprocesshave thesame carbon skeletaalrrangementasthefeedstockused,but with allof the hydrogen atoms replacedby fluorine.However, fi-agmentatioand rearrangementof thecarbon skeletoncan alsooccur and significanatmounts of cleaved,branchedand cyclicstructuremsay be formed. The degreeof fluorinatioonftheorganicfeedstockisalsodependentupon thespecific carbon chainlengthof thefeedstockand parametersoftheECF processsuch aselectricaclurrentand thelengthoftime theprocessisrun. Itispossibletosynthesizfeullyfluorinateodrperfluoroorganic moleculeswhere allofthehydrogen atoms of thehydrocarbonfeedstockhave been replacedby fluorineatoms. Using theseperfluoroorganimcoleculesasbasicbuildingblocks,uniquechemistries can be createdby furtherreactionswithfunctionauzedhydrocarbonmolecules. 3M has produced sulfonylbased fluorochemicalcsommerciallyforover40 yearsusingtheECF process.A basicbuildingblockof suchproductsand thehighestproductionvolume fluorochemical 3M manufacturesisperfluorooctanesuifonfylluorid(e@OSF). The startinfgeedstockforthisreaction is 1-octanesulfonyfluoride. (Reactio1n) Reaction 1 C&Hl7SO2F + 17 BF I-Octanesulfonyflluoride Energy CgFl7so2F + 17 H2 ECF Perfluorooctanesulfofnlyuloride The electrochemicaflluorinatiopnrocessyieldsabout35%-40% straighcthain(normal)POSF, and a mixtureofbiproductsand wasteofunknown and variablceompositioncomprisedofthefollowing: 1) higherandlowerstraight-chhaoimnologsi,.e.n,-CnF2n+IS02eF.,g.,C6Fl3SO2F, C7Fl5SO2F, C9Fl9SO2Fwhich comprise about 7% ofthe processoutput 2) branched-chain,perfluoroalkylsulfonyflluorideswith variouschain lengths,about 18-20% of the output 3) straight-chainb,ranched, and cyclic(non-functionalp)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, the mixture produced by the electrochemicalfluorinatiopnrocessvariessomewhat from lot-to-loatnd from plantto-plant.The product thatresultsfrom electrochemicalfluorinationisthus not a pure chemical but rathera mix of isomers and homologues. The comm ializedPOSF derivedproducts area mixture of approximately 70% linearPOSF derivativesand 30% branched POSF derived impurities. CAS Number 1763-23-1,29081-56-9,70225-14-8,2795-39-3,29457-72-5/3M Company /4/27/2000 3 During production,byproductsand wasteproductsareformed".The volatilweaste products,such as perfluorometlme,have been ventedtotheatmosphereinthepast,but improvements areunderway to captureand destroythesereleasesby thermaloxidation.The tarsareincinerateadtan in-house, hazardouswaste incineratorT.he byproductsm,any of which areincompletelyfluorinatewdith hydrogen atoms stilplresentcan be recycledback intotheECF processor arepartialldyegradedin stabilizatipornocesses,and dischargedtocontrolledi,n-house,wastewatertreatmentsystems.The treatmentsludgeiseitherlandfilleodrland-incorpomted.Some of thenon-POSF byproductsare recoveredand soldforsecondaryuses. POSF isitselafcommerciallyviableproduct,butisprimarilyan importantintermediatienthe synthesisof substancesused inmany other3M fluorochemicaplroducts.The majorityisused to producefunctionalldyerivatizefdluorochemicalasnd high molecularweightpolymericproducts. The perfluorooctanseulfonicacidmanufacturedby hydrolyzingPOSF intermediatetso thesulfonic acid.The varioussaltsof perfluorooctanseulfonataeremanufacturedby baseneutralizationfthe acidto theappropriatesaltina batchreaction. The followingblock flow diagram describestheprocessdiscussedabove. BLOCK FLOW DIAGRAM FOR PERFLUOROSULFONIC ANDITSSALTS ACID Electro-ChemicalFluorinationCells (Octanesulfonylfluoride+ EF + electricaelnergy) Perfluorooctanesulfonylfluoride Ir Secondary Reactors Hydrolysis& Base Neutralization Perfluorooctanesulfonicacid and varioussaltforms Functionally Derivatized Fluorochemicals CAS Number 1763-23-1,29081-56-9,70225-14-8,2795-39-3,29457-72/-35M Company/ 4/27/2000 4 IV. SITE RELEASE AND TRANSFER INFORMATION FOR TRI CHEMICALS Not Applicable - Perfluorooctane sulfonic acid and itssaltsare not listedon TRI. V. SITE RELEASE AND TRANSFER INFORMATION FOR NON-TRI CHEMICALS A. ON-SITE AIR RELEASES FROM DECATUR, AL AND COTTAGE GROVE, MN Fugitive(non-point) Stack (point) Comments: EstimatedTotal Annual Releases (lbs.1997) NegligibleN,ot quantified 0 Estimated % #days/years Accuracy of releaseoccurs Estimate(optionai) Physicalchemicalpropertyinfbrmationand industriahlygienemonitoringsupportthatPFOS salts would not be intheform ofvolatilaeiremissions.Some industriahlygienetestingatCottageGrove, MN has shown thepresenceofPFOS inwork areas,however theindustriahlygiene personnelhave indicatedthatthismaterialisbelievedto be intheform ofdriedparticulatdeust.Although dispersed PFOS hasbeen detectedinthework area,theconcentrationdso not 'indicatseignificanctontributions to annualsiteairemissions. Industriahlygiene dataforPFOS saltshas notbeen generatedinDecatur,AL becausetheyareina liquidslurryversusparticlfeorm. FugitiveairemissionstestinfgortheDecaturwastewatertreatmentsystem was conductedin late 1999. Resultsarestilulnder reviewand no fmat reportisavailableH.owever, no PFOS was detected inairsamples. B. WATER RELEASES FROM SITE Water releases: Estimated Total Annual Releases (lbs.1997) 10,000 Estimated % Accuracy of Estimate (optiouni) Number of days/yearreleaseoccurs: (Seecomments below) Receiving Water Name: Baker'sCreek atthejunctionwiththeTennesseeRiver NPDES Number: ALD004023164 CAS Number 1763-23-1,29081-56-9,70225-14-8,2795-39-3,29457-72-5/3M Company /4/27/2000 5 Comments: Although manufacturingof thesaltslisteodn thisform isassociatewdithlessthan 10 wastewaterdischargesper year,thehydrolysisofothersulfonatedcompounds toPFOS inthe wastewatertreatmentsystem resultinan ongoingdischargeof thePFOS compounds. The calculatedischargeamount thereforeisnot attributetdojustthesaltproduction.A percentageof thedischargesarefrom thePFOS saltmanufacturing.There isnotdatato distinguisbhetween PFOS dischargefrom PFOS saltmanufacturingversushydrolysisof othersulfonatedcompounds manufacturedatthissiteto PFOS. PFOS inwastewaterdischargeisnotmeasured as specifiscaltcompounds, but insteadreflects thetotalamount ofdissociatesdaltsand compounds thathydrolyzetoperfluorooctane sulfonate. COTTAGE GROVE, MN Estimated Total Annual Releases (lbs.1997) Estimated % Accuracy of Estimate (optional) Water releases: 1000 Number of days/yearreleaseoccurs: II timesperyear Receiving Water Name: Nfississippi NPDES Number: MN00001449 Comments: The dischargeamount isbasedupon 'perbatchestimatesofreleases'R.emoval of thePFOS tothesludgefrom theCottageGrove,MN wastewatersystem was calculated based upon themeasured removal of PFOS from wastewaterintheclarifieartsDecatur,AL. C. ON-SITE LAND RELEASES DECATUR, AL Estimated Total Annual Releases (lbs.1997) Estimated % Accuracy of Estimate (optional) Landfill Land Treatment/Land Amendment Surface Impoundments Underground Injection Other (specify): 0 40,000 Not quanfified 0 CAS Number 1763-23-1,29081-56-9,70225-14-8,2795-39-3,29457-72-5 /3M Company /4/27/2000 6 Comments: In 1997,land-amended sludgeswere heldinan impoundment untilweatherpermitted applicatiotnothefield.The impoundment isno longerused as partof thenormal wastewater treatmentoperationexceptduringequipmentdowntime. A percentageof thePFOS land treatmentisfrom thePFOS saltmanufacturing.There isnot datato distinguisbhetween PFOS landtreatmentfrom PFOS saltmanufacturingversushydrolysisof othersulfonated compounds manufacturedatthissiteforPFOS. The landtreatmentof Decatursludgewas discontinueidnearly1998. Sludgenow is transportedtoan offsitleandfillasf,terpassingthrougha thickenerand a sludgepress. EstimatedPFOS levelsinthesludgearebased upon the reductionof PFOS inthewastewater streamas itpassesthroughtheclarifieartsthesite.The PFOS levelsinthesludgehave been reducedby changes inthe amount ofmaterialsbeing dischargedtothesewer. Wastewater datafrom 1999 show thatPFOS levelsinthesludgewere lessthan20,000 pounds per year. COTTAGE GROVE, MN Estimated Total Annual Releases (lbs. 1997) Landfill 0 Land Treatment/Land Amendment 0 Surface Impoundments 0 Underground Injection 0 Other (specify): Estimated % Accuracy of Estimate (optionai) Comments: Sludge from theCottageGrove facilitiyssentto an off-sitiendustriallandfill. D. OFF-SITE TRANSFERS - Decatur,AL and CottageGrove, MN (1997) Dl. TransfertoPubliclOywned TreatmentWorks (POTW) Number ofdays/yeatrhereleasoeccurs:Notapplicab-lewasteisnotsenttoa POTW AnnualTransferOb): 0 Estimated% AccuracyofTransferEstimate(optional) POTW Name: Not Applicable StreetAddress: Not Applicable City: Not Applicable Country: Not Applicable State:Not Applicable Zip Code: Not Applicable NPDES Number: Not Applicable Comments: CAS Number 1763-23-1,29081-56-9,70225-14-8,2795-39-3,29457-72-5 /3M Company /4/27/2000 7 D2. TRANSFERS TO OTHER OFF-SITE LOCATIONS DECATMAL EstimatedTotal Annual Releases (lbs.1997) Estimated % Accuracy of Estimate (optional) Incineration: Wastewater Treatment (ExcludingPOTW) Not applicable Not applicable Underground Injection Not applicable Hazardous Waste (RCRA SubtitleC) landfill Not applicable Other Land:rdl Recycle or Recovery Not applicable Not applicable Unknown or Other Comments: COTTAGE GROVE, MN Estimated Total Annual Releases Obs. 1997) Estimated % Accuracy of Estimate (optional) Incineration: Wastewater Treatment (ExcludingPOTW) Underground Injection Hazardous Waste (RCRA SubtitleC) landrdl 0 - See comment Not applicable Not applicable Not applicable Other Landfill 7400 Recycle or Recovery Not applicable Unknown or Other Comments: Cottage Grove facilituytilizeisncineratiofnoralltheirdnnnmed wastes. Waste summary does not show any drummed PFOS saltwastes in 1997. Sludge from the Cottage Grove facilitiyssentto an industrialandfill. CAS Number 1763-23-1,29081-56-9,70225-14-8,2795-39-3,29457-72-5/3M Company /4/27/2000 8 VI. ON-SITE WORKPLACE EXPOSURE CAS Number: 2795-39-3ComiDany:3m Co=M, Cottage Grove, NN (Rotassium Rgffluorooctanesulfonate) SRecialtMyaterialMsanufacturinDiiavision, This information will assistEPA 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 activitiedsescribed in question 2. 1. Estimate the number of workers potentiallyexposed routinelyto the subject chemical for each of the exposure duration times. If a worker isinvolved in more than one activity,enter only his/hermost typicalactivityin the table. Don't count a worker more than once. The totaln,umber in the table should equal the totalnumber of workers potentiallyexposed. Hours/Day <10 <.25 .25-1 12 1-8 6 >8 1 Days/Year 10-100 100-250 23 23 >250 2. Describe the routine worker activities to which the workers in question 1 are exposed: sampling, removal of fdter cake, and drumming of liquids, manufacture 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: The chemical (2795-39-3) is a hgh@ free-flowing powder. Initially, the material is a wet slurry(withina reactor)and isthen transferretdo drying equipment forfmal processing and packaging. The above employees operateand maintain the drying equipment, collectquality samples, and alsopackage (by gravityor by hand scooping) dry powder from the spray equipment intodrums, pails,and cans. CAS Number 1763-23-1,29081-56-9,70225-14-8,2795-39-3,29457-72-5/3M Company /4/27/2000 9 3. Provide industrial hygiene monitoring data, ifavailable,with a brief description of the sampling method and exposure scenario monitored, eg., describe the specificworker activitiesperformed by the individuals monitored. For privacy considerations, please do not include any personal identifierssuch as a worker's name or socialsecurity number with any data submitted to EPA. These samples were collectedduring operation of drying equipment and packaging activities. Pastsample collectioannd analysishas utilize3d7-mm Nucleopore filtecrassettewsith either gravimetrici,nductivelcyoupledplasmaemissionspectroscopy(forK+), orliquid chromatographyanalysis.The currentmethod isan OSHA VersatilSeampler (OVS) tube analyzedby liquidchromatography/massspectrometry.Wipe sample dataforthe chemical does existand has indicatesdignificanltevelsof thismaterialon surfacesin theproduction area.The resultwsere usedforfocusingdecontaminationand exposurecontrolefforts. A re"@a@IJ0'b @-::,"@aSn! le. Type' u concen m .0 "'-.C.-.6ncenirauoji."e,a.u Production Unit: Chemical Process PartiaSlhift 10 (Sample Operator Time Range: 7- PilotPlant: 125 minutes) Technician PartiaSlhift 1 (Sample Time: 70 minutes) 0.00013 mgtm3 40 mg/m3 0.050 mgtm3 64.407 0.45mglm3 0.45mg/m3 NA NA 4. Brieflydescribethe engineeringcontrolsused to minimize exposure to this chemical: The drying and packagingactivitieasrecontainedwithinsmall-room enclosureswith negativepressureand filteredexhaust ventilation.Loc al exhaust may be present directlyatthepointof packaging. 5. Brieflylistthe personal protectiveequipment your workers regularly wear to prevent exposure of thischemical: Employees working withintheabove small-room enclosuresuse airlinerespirators, chemical-protectivceoveralls(Tyvek),boot covers,and gloves. Comments: (Thissectionisavailableto clarifytheresponsesgiven. Attach additionalpages ifdesired.) CAS Number 1763-23-1,29081-56-9, 70225-14-8,2795-39-3,29457-72-5 / 3M Company /4/27/2000 10 CAS Number: 1763-23-1 Company: 3M CompM. Cottage Grove, SpecialtyMaterialManufacturingDivision, Chemical Name Perfluorooctanseulfonicacid CAS No. 1763-23-1 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 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 typical activityin the table. Don't count a worker more than once. The total number in the table should equal the totalnumber of workers potentiallyexposed. Hours/Day <10 <.25 .25-1 1-8 >8 Days/Year 10-100 100-250 >250 6 12 2. Describe the routine worker activitiesto which the workers in question 1 are exposed: sampling, removal of filtercake, and drumming of liquids, manufacture an article,etc. For these activitiesd,escribe the physical.state of the subject chemical (liquid,gas,particulate,or aerosol,etc.)and, ffin a mixture, the chemical's concentration: The chemical formulation containing 1763-23-1 isa clearcolorlessliquid solution(32-38% concentration)E.mployee activitieisncludeoperationand maintenance of processequipment,productqualitysampling and dnnnniing as an intermediateor finalproductliquidsolutioncontaining1763-23-1. 3. Provide industrialhygiene monitoring data,ifavailable,with a brief describethe specificworker activitiepserformed by the individualsmonitored. For privacy considerations,pleasedo not includeany personal identifierssuch as a worker's name or socialsecuritynumber with any data submitted to EPA. No dataavailable. 4. Brieny describethe engineeringcontrolsused to minimize exposure to this chemical: Local exhaustventilatiounsed atproductcontaineropeningsduringcontainerfilling. CAS Number 1763-23-1,29081-56-9,70225-14-8,2795-39-3,29457-72-5/3M Company /4/27/2000 5. Brieflylisthe personalprotectivequipment your workers regularlywear to prevent exposureof thischemical: Employees wear PVC jacketsand pants,neoprene gloves,and faceshieldand chemicalsplashgogglesforcontainerizatioofnsolutioncsontaining1763-23-1. Comments: (Thissectionisavailabletoclarifytheresponsesgiven.Attach additionalpagesifdesired.) CAS Number 1763-23-1,29081-56-9, 70225-14-8,2795-39-3,29457-72-5 / 3M Company /4/27/2000 12 CAS Number: 70225-14-8 Company: 3M Company, SpecialtyMaterialsManufacturingDivision, Cottage Grove, Chemical Name Diethanolaniinesaltof perfluorooctane sulfonate CAS No. 70225-14-8 This information willassistEPA in characterizingthe number ofworkers potentially exposed and the magnitude, frequency, and duration of potentialexposure. When providing monitoring data,ensure that data islinked with worker activitiedsescribed in question 2. 1. Estimate the number ofworkers potentiallyexposed routinelyto the subject chemical for each of the exposure duration times. Ifa worker isinvolved in more than one activitye,nteronly his/hermost typicalactivityinthe table. Don't count a worker more than once. The totalnumber in the tableshould equal the total number ofworkers potentiallyexposed. Hours/Day <10 <.25 .25-1 2 1-8 4 >8 Days/Year 10-100 100-250 >250 2. Describe the routine worker activitietso which the workers in question I are exposed: sampling, removal of filtercake, and drumming ofliquids, manufacture an articlee,tc. For these activitiesd,escribethe physical stateof the subject chemical (liquid,gas,particulate,or aerosol,etc.)and, ifin a mixture, the chemical'sconcentration: The chemical (70225-14-8)isa clear,lightcoloredsolutioncontaining19-23% 70225-14-8.Employee activitieisncludeoperationand maintenance of process equipment,productqualitysampling and drumming of fmal liquidsolutioncontaining 70225-14-8. 3. Provide industrialhygiene monitoring data, ifavailable,with a briefdescription ofthe sampling method and exposure scenario monitored, e.g.,describe the specificworker activitiepserformed by the individualsmonitored. For privacy considerations,pleasedo not include any personal identifierssuch as a worker's name or socialsecuritynumber with any data submitted toEPA. No dataavailable. 4. Brieflydescribethe engineering controlsused to minimize exposure to this chemical: Local exhaust ventilatiounsed atproduct containeropenings duringpackaging. CAS Number 1763-23-1,29081-56-9,70225-14-8,2795-39-3,29457-72-5/3M Company /4/27/2000 13 5. Briefly list the personal protective equipment your workers regularly wear to prevent exposure of thischemical: Employees wear PVC glovesand chemicalsplashgogglesforcontainerizatiofn product. Comments: (Thissectionisavailabletoclariftyheresponsesgiven.Attach additionalpagesifdesired.) CAS Number 1763-2")-l2,9081-56-9,70225-14-8,2795-39-3,29457-72-5/3M Company /4/27/2000 14 CAS Number: 29081-56-9 Company: 3M CoLnRM, Cottage Grove, MN SReciallyMaterialsManufacturing Division, @7hemi-cal Name @k=onium perfluorooctanesulfonate CAS No. 09081-56-9 This information will assistEPA in characterizingthe number of workers potentially exposed and the magnitude, frequency, and duration of potentialexposure. When providing monitoring data,ensure that data islinked with worker activitiedsescribed in question 2. 1. Estimate the number of workers potentiallyexposed routinelyto the subject chemical for each of the exposure duration times. If a worker isinvolved in more than one activity,enter only his/hermost typicalactivityin the table. Don't count a worker more than once. The totalnumber in the tableshould equal the total number of workers potentiallyexposed. Hours/Day <10 <.25 .25-1 12 1-8 12 >8 DaysfYear 10-100 100-250 >250 2. Describe the routine worker activitiesto which the workers in question 1 are exposed: sampling, removal of filtercake, and drumming of liquids, manufacture an article,etc. For these activitiesd,escribe the physical stateof the subject chemical (liquid,gas, particulate,or aerosol,etc.)and, ifin a mixture, the chemical's concentration: The chemical formulationcontaining29081-56-9 isa clearamber solution(19-23% concentration).Employee activitieisncludetransferrinwget slurryto filteprress, operatingfilteprress,transferrinfgiltecrake to reabtor,and drumming finalliquid solutioncontaining29081-56-9. The above employees alsooperateand maintain process equipment and couect qualitysamples. 3. Provide industrialhygiene monitoring data, ifavailable,with a brief description of the sampling method and exposure scenario monitored, e.g.,describe the specificworker activitiepserformed by the individuals monitored. For privacy considerations,please do not include any personal identifierssuch as a worker's name or socialsecuritynumber with any data submitted to EPA. No data available. 4. Briefly describe the engineering controls used to minimize exposure to this chemical: Local exhaust availableatthe filterpress,at the reactoropening and atthe product containeropenings. CAS Number 1763-23-1,29081-56-9,70225-14-8,2795-39-3,29457-72-5/3M Company /4/27/2000 15 5. Briefly listthe personal protective equipment your workers regularly wear to prevent exposure of thischemical: Employees wear PVC jacketsand pants,neoprene gloves,and chemical splash goggles. Half mask dust-mistrespiratorsareused forhandling of wet filtecrake. Comments: (Irhissectionisavailableto clarifythe responses given. Attach additionalpages ifdesired.) CAS Number 1763-23-1,29081-56-9,70225-14-8,2795-39-3,29457-72-5/3M Company 4/27/2000 16 CAS Number: 29457-72-5 Company: 3M Comv=, Si)ecialMlayterialMsanufactifiniDzivision, Cottage Grove. MN @Chemical Name @ithium perfluorooctanesulfonate CAS No. @9457-72-3- This information willassistEPA in characterizing the number of workers potentially exposed and the magnitude, frequency, and duration of potentialexposure. When providing monitoring data, ensure that data islinked with worker activitiedsescribed in question 2. 1. Estimate the number of workers potentiallyexposed routinelyto the subject chemical for each of the exposure duration times. If a worker isinvolved in more than one activity,enter only his/hermost typicalactivityin the table. Don't count a worker more than once. The totalnumber in the table.shouldequal the total number of worker's potentiallyexposed. Hours/Day <10 <.25 .25-1 12 1-8 6 >8 I Days/Year 10-100 100-250 >250 A 2. Describe the routine worker activitietso which the workers in question I are exposed: sampling, removal of filtercake, and drumming of liquids, manufacture an article,etc. For these activitiesd,escribe the physical stateof the subject chemical (liquid,gas,particulate,or aerosol,etc.)and, ifin a mixture, the chemical's concentration: The chemical formulationcontaining29457-72-5 isa clearamber solution(24-26% concentration).'Employee activitieisnclude operationand maintenance of process equipment, productqualitysampling and drumming of fmal liquidsolutioncontaining 29457-72-5. 3. Provide industrialhygiene monitoring data, ffavailable,with a brief description of the sampling method and exposure scenario monitored, e.g.,describe the specificworker activitiepserformed by the individuals monitored. For privacy considerations,please do not include any personal identifierssuch as a worker's name or socialsecuritynumber with any data submitted to EPA. No data available. 4. Briefly describe the engineering controls used to minimize exposure to this chemical: Local exhaust ventilationused atproduct containeropenings duringpackaging. CAS Number 1763-23-1,29081-56-9,70225-14-8,2795-39-3,29457-72-5/3M Company /4/27/2000 17 5. Briefly listthe personal protective equipment your workers regularly wear to prevent exposure of thischemical: Employees wear PVC jackets,neoprene gloves,and chemical splashgoggles for containerizatioonf product. Comments: (17hissectionisavailableto clarifythe responses given. Attach additionalpages ffdesired.) CAS Number 1763-23-1,29081-56-9,70225-14-8,2795-39-3,29457-72-5/3M Company /4/27/2000 18 CAS Number: 2795-39-3 Company: 3M ComT)any,S12ecialMtayterialsManufacturiniDzivision, Decatur,AL @hemical Name Potassium perfluorooctanseulfonate CAS No. @795-39-3 This information willassistEPA in characterizingthe number of workers potentially exposed and the magnitude, frequency, and duration of potentialexposure. When providing monitoring data, ensure that data islinked with worker activitiedsescribed in question 2. I Estimate the number ofworkers potentiallyexposed routinelyto the subject chemical for each of the exposure duration times. Ifa worker isinvolved in more than one activity,enter only his/hermost typicalactivityin the table.Don't count a worker more than once. The totalnumber in the tableshould equal the totalnumber of workers potentiallyexposed. Hours/Day Days/Year <10 10-100 100-250 >250 <.25 .25-1 24 1-8 @ - >8 2. Describteheroutiwnoerkeractivittoiwehsichtheworkerisnquesti1oanreexposed: samplinrge,movaolffdtecrakea,nddrummingofliquidmsa,nufactuarnearticeltec,. Forthesaectivitdieessc,ritbheephysicsatlatoefthesubjechtemic(aliquigda,s, particuloartaee,rosoelt,ca.n)d,ifina mixturteh,echemicaclo'nscentration:' Thechemic(a2l795-39i-si3n)anaqueoussoluti(o2n50/oE)m.ployeoepseraatnedmaintain theproductionequipmentand collecqtualitysamples. Materialisproduced,stored,and metered intoproductcontainerina closedsystem 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 individualsmonitored. For privacy considerations,please do not include any personal identifiersuch as a worker's name or socialsecurity number with any data submitted to EPA. No data available. 4. Briefly describe the engineering controlsused to minimize exposure to this chemical: Enclosed process. CAS Number 1763-23-1,29081-56-9,70225-14-8,2795-39-3,29457-72-5 3M Company /4/27/2000 19 5. Briefly listthe personal protective equipment your workers regularlywear toprevent exposure of thischemical: Employees use safetyglassesand neoprene gloves. Comments: (Thissectionisavailabletoclariftyheresponsesgiven.Attach additional pages ifdesired.) CAS Number 1763-23-1,29081-56-9,70225-14-8,2795-39-3,29457-72-5 3M Company 4/27/2000 20 CASNumber: 1763-23-1.2081-56-9,29457-72-5,70225-14-8Company: 3M - Decatur,AL Chemical Name Perfluorooctanseulfonicacid Ammonium perfluorooctanseulfonate Lithium perfluorooctanseulfonate Piedmolamine saltofperfluorooctane Oulfonate CAS No. 1763-23-1 29081-56-9 29457-72-5 0225-14-8 None of thesematerialsaremanufacturedat3M-Dec atur. CAS Number 1763-2'3-12,9081-56-9,70225-14-8,2795-39-3,29457-72-5/3M Company /4/27/2000 21 VI:I. CHEMCAL END USES A. END USE AS AN DITERMEEDIATE CONSUMEED TO MAKE OTHER CHENUCALS Al. On-Site Use as a Intermediate: CAS #1763-23-1 Perfluorooctanesulfonicacidisusedas an intermediatwehile thesaltsarenot used as intermediatesT.he perfluorooctanseulfonatesaltsareonlyused asfinishedproducts. Product chemicalclass or product chemical (IncludeCAS number ifappropriate) % oftotal* volume ofsubject chemicalmanufactured or imported 1 Fluorochemicaltdvalentchromium 1-5 compound 2. Perfluorooctanseulfonatesalt 1-5 *As reportedin Part M, p.2 A2. Off-SiteUse as an Intermediate: Product chemicalclass or product chemical (IncludeCAS number ifappropriate) I Not Applicable % oftotal volume ofsubject chemicalmanufactured or imported* Not Applicable *As reportedinPart M, p-2 CAS Number 1763-23-1,29081-56-9,70225-14-8,2795-39-3,29457-72-5 3M Company 4/27/2000 22 B. END USES OTIBER THAN AS A CONSUMIED INTERMEEDIATE The followingtwo tablespresenta summary oftheinformationcontainedinVH.B regardingusesof perfluorooctanseulfonicacidand itssaltforms. Table 1 detailtsheend applicationisnwhich a particulaCrAS Number isused. For each CAS Number, the % used ineach applicatiotnotalsto 100%. Table 1. CAS Number by Application CAS NUMER 2795-39-3 29457-72-5 70225-14-8 29081-56-9 1763-23-1 APPLICATION 1 . Film formerinFireFightingFoams 2. Mst suppressantforacidbathsinmetalplatingfactories 3. Surfactanitnacidetchingprocessesforproductionof circuit boards 1 . Surfactanitnalkalinecleaners 2. Emulsifieirncomm ialfloorpolish 3. Mist suppressanftoracidbathsinmetalplatingfactories 4. Surfactanitnacidetchingprocessesforproductionof circuit boards 5. Registeredactiveingredientforinsectcontrol.Used in formulationussed inbaittraps 1. Emulsifieirncommercialfloorpqlishes 2. Mist suppressantforacidbathsinmetal platingfactories 3. Surfactanitnacidetchingprocessesforproductionof circuit boards 1. Surfactanitnacidetchingprocessesforproductionof circuit boards No conunercialproducts Table2 detailtshemultipleCAS Numbers which may be used inany one application. Table 2. Applicationby CAS Number CAS NUM13ER 2795-39-3 2795-39-3 29457-72-5 70225-14-8 2795-39-3 29457-72-5 70225-14-8 29081-56-9 29457-72-5 70225-14-8 29457-72-5 29457-72-5 1763-23-1 APPLICATION Film formerinFireFightingFoams l@Estsuppressantforacidbathsinmetalplatingfactories Surfactanitn acidetchingprocessesforproductionof circuit boards Emulsifierincommercialfloorpolishes Surfactantinalkalinecleaners Registeredactiveingredienftorinsectcontrol.Used in I formulationsused inbaittraps No'commercial products CAS Number 1763-2-'1-219,081-56-9,70225-14-8,2795-39-3,29457-72-/53M Company/ 4/27/2000 23 CAS Number 2795-39-3,Potassium perfluorooctanesulfonate Use Nwnber 1 of 3 Descriptionof Chemical End Use: Chemical used as filmformerwhich isblendedintofire fightingfoam . These productsaredesignedforprimaryuse by firefightingprofessionals. Percentof totalmanufacturedor imported Volume goingtothisuse: 92 2 Ifused ina naxturecheck appropriatbeox To indicatweeightfractionA.verage Values areacceptable: X_ <1% (600-1200ppm) 1-30% 30-60% 60-90% >90% Check allphysicalforms of the chemical duringthisuse: Aerosol Dry Powder Pelletosr largecrystals Water orsolvent- wet solid Gas or vapor x Liquidsolution Other(Explain) Use Number 2 of 3 Descriptionof Chemical End Use:Metal platingfactorieusse thischemicaltosuppress oxidizingacidmistinordertoprotectheirworkers'health. Percentoftotalmanufacturedor imported Voligne goingto thisuse: 6 =L 2 Check allphysicalforms of the chemical duringthisuse: Ifused ina mixturecheck appropriatbeox To indicatWeeight ftwtion.Average Values areacceptable: X <1% (1000ppm) 1-30% 30-60% 60-90% >90% Aerosol Dry Powder Pelletsorlargecrystals Water orsolvent- wet solid Gas orvapor x Liquidsolution Other(Explain) CAS Number 1763-23-1,29081-56-9,70225-14-8,2795-39-3,29457-72-5/3M Company 4/27/2000 24 Use Number 3 of 3 Descriptionof Chemical End Use: Electronifcactorieasdd thischemicalas a surfactantto improve thewettingof strongacidsused intheetchingof precisepatternsin a siliconwateror a printedcircuibtoard. Percentof totalmanufacturedor imported Volume goingtothisuse:2 0.5 Check allphysicalforms of the chemical duringthisuse: Ifused in a mixturecheck appropriatbeox To indicateWeight fractionA.verage Values areacceptable: X <1% (<1000ppm) 1-30% 30-60% 60-90% >90% Aerosol Dry Powder Pelletsor largecrystals Water orsolvent- wet solid Gas orvapor x Liquidsolution Other(Explain) CAS Number 1763-23-1,29081-56-9,70225-14-8,2795-39-3,29457-72-5'/3M Company /4/27/2000 25 CAS Number 29457-72-5,Lithium perfluorooctanesulfonate Use Number 1 of 5 Descriptionof Chemical End Use: Chemical formulatorusse thischemicalasa surfactant toimprove thewetting-ofwater-basedproductsthataresoldas alkalinecleaners.These cleanersarethendilutedand soldtotheconsumer or contractcleaner. Percentof totalmanufacturedor imported Volume going tothisuse: 23-.-5+ 0.-5 Ifused ina mixturecheckappropriatbeox To indicatWeeight fractionA.verage Values areacceptable: x <1% (30ppm) 1-30% 30-60% 60-90% >90% Check allphysicalforms of the chemicalduringthisuse: Aerosol Dry Powder Pelletsor largecrystals Water orsolvent- wet solid Gas orvapor x Liquidsolution Other(Explain) Use Number 2 of 5 DescriptionofChemical End Use: Metalplatingfactorieusse thischemicalasa surfactant to suppressoxidizingacidmistinordertoprotectheirworkers'health. Percentoftotalmanufacturedorimported Volume* goingtothisuse: I+ I Check allphysicalforms of the chemical duringthisuse: Ifused in a mixturecheck appropriatbeox To indicatWeeight fractionA.verage Values areacceptable: X <1% (30-50ppm) 1-30% 30-60% 60-90% >90% Aerosol Dry Powder Pelletsor largecrystals Water orsolvent- wet solid Gas orvapor Liquidsolution Other(Explain) CAS Number 1763-23-1,29081-56-9,70225-14-8,2795-39-3,29457-72-5 3M Company 4/27/2000 26 Use Number 3 of 5 Descriptionof Chemical End Use: Electronicfsactorieasdd thischemicalasa surfactantto improve thewettingof strongacidsused intheetchingof precisepatternsin a siliconwater or a printedcircuibtoard. Percentof totalmanufacturedor imported Volume goingtothisuse: 1 1 Check allphysicalforms of the chemicalduringthisuse: Ifused ina mixturecheck appropriatbeox To indicateWeight fractionA.verage Values areacceptable: X <1% (30-50ppm) 1-30% 30-60% 60-900/o >90% Aerosol Dry Powder Pelletsor largecrystals Water orsolvent- wet solid Gas orvapor x Liquidsolution Other(Explain) Use Number 4 of 5 Descriptionof Chemical End Use: Chemicalformulatorusse thischemicalasa surfactant toimprove thewettingof water-basedproductsthataresoldas commercial floorpolishes. Percentoftotalmanufacturedor imported Volume goingtothisuse:23.5:k0.5 Check allphysicalforms of the chemicalduringthisuse: Ifused ina mixturecheck appropriatbeox To indicatWeeight fi-actioAnv.erage Values areacceptable: X <1% (15ppm) 1-30% 30-60% 60-90% >90% Aerosol. Dry Powder Pelletsor largecrystals Water orsolvent- wet solid Gas orvapor x Liquidsolution Other(Explain) CAS Number 1763-23-1,29081-56-9,70225-14-8,2795-39-3,29457-72-5 3M Company 4/27/2000 27 Use Number 5 of 5 DescriptionofChemical End Use:Chemicalformulatorussethischemicalasa registered activeingredienftorinsectcontrol.Itisblendedwithbaitthatisattractivteoinsectsand placedinbaitstationsE.ithercomm ialfacilitioersconsumers can use thesebaitstations. Percentoftotalmanufacturedor imported Volume goingtothisuse: 53 0.5 Check allphysicalforms ofthe chemicalduringthisuse: Ifused in a mixture check appropriatebox To indicateWeight fraction.Average Values are acceptable: X <1% 1-30% 30-600/o 60-90% >90% Aerosol Dry Powder Pelletsor largecrystals Water or solvent- wet solid Gas or vapor x Liquid solution Other (Explain) CAS Number 1763-23-1,29081-56-9,70225-14-8,2795-39-3,29457-72-5/3M Company /4/27/2000 28 CAS Number 29081-56-9,Ammonium perfluorooctane sulfonate Use Number I of 1 Description of Chemical End Use: Electronicsfactoriesadd thischemical as a surfactanto improve the settingof strong acidsused in the etchingof precisepatternsin a siliconwafer or a printedcircuitboard. Percent of totalmanufactured or imported Volume going to thisuse: .100 Check allphysicalforms of.the chemical during thisuse: Ifused in a mixture check appropriatebox To indicateWeight fmction. Average Values are acceptable: x <1 % (-100 ppm) 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 1763-23-1,29081-56-9,70225-14-8,2795-39-3,29457-72-5 3M Company 4/27/2000 30 Use Number 3 of 3 Descriptionof Chemical End Use: Electronifcactorieasdd thischemicalasa surfactantto improve thewettingof strongacidsused intheetchingof precisepatternsina siliconwater or a printedcircuibtoard. Percentoftotalmanufacturedor imported Volume goingtothisuse: 16.5 2 Check allphysicalforms ofthe chemical duringthisuse: Ifused ina mixturecheck appropriatbeox To indicatWeeight fiwfion.Average Values areacceptable: x <1% (-100-1000ppm) 1-30% 30-600/o 60-90% >90% Aerosol Dry Powder Pelletsor largecrystals Water orsolvent- wet solid Gas orvapor x Liquidsolution OthergbMIain)