Document qmrV7M5mY24KoYzL5qq5Vo5LR

ARRAG -- 1366 LABORATORY-SCALE THERMAL DEGRADATION OF PERFLUORO- 'OCTANYL SULFONATE AND RELATED SUBSTANCES TEST SUBSTANCE Identity: Perfluorooctanesulfonate; may also be referred to as PFOS or C1a1F.2127,S3O,53K4,"4..5(,15-,O6c,t6a,n7e,s7u,l8f,o8n,i8c-ahceipdt,adecafluoro-, potassium salt, CAS # 2795-39-3). Sample container was a clear glass v9i8a-l0w2i1t1h-b3l9a1c6k-1p,laLstoitc2s1c7r"e.wTohnecpaupr.ityLaobfetlhirsesaudb"sCta8nFc1e7SisO3K", 86.9%. Storage conditions were not described. Remarks: Thermal degradation of FC-807A and FC-1395 (Cs pPeFrfOlSuorinootchteylensvuilrfoonnmaemnitd.esF)Cw-a8s07aAlsios eavamlixutautreed oafsmaonpoot-enatinadl dsio-urce of p(hHoOsCpHha2tCeHe2sNte(rRs)oSf Ofl2uCorBoFch1e7)m.iFcCal-8a0l7coAhohlasd previously been used in uprroedtuhcatnieonpooflyomiel-rretsoiwsthaincthpatpheerfsluaonrdocphaemcikcaaglinaglcmoahtoelriiaslb.ouFnCd-1t3h9r5ouigsha urethane linkages. FC-1395 had previously been used as a carpet tTrheeatsmaemnptlmeatceornitaalinperirofrotroFtCh-e8p0r7oAduwcatisonmaphdaeseo-foculteairn gDleacssemwbitehra20m0e0t.al 8sc0r7eAw/8c5a8p.1/TBhCeASL/aTbiemlef:or1t1h:i1s0s/uLbosttNaon.ce30r1e7a7d/D"MrautmerTi4al/SFtCe-p/Date: 12-222K/Sampled by C. Senior." The sample container for FC-1395 was an amber glass vial with black plastic screw on cap. The label for this csounbdsittainocnse wreearde "nNotamdee:scFrCi-b1e3d9f5o/rLoFtC#-:809700A8a6n/DdatFeC:-11319/57./00.P"uriSttyowraagsealso not noted for these test substances. METHOD EMnevtihroodn:menMteatlhoSdcideenvceelsoapnedd by Takahiro Engineering Yamada and Philip H. Taylor, Group, University of Daylon Research Institute, based on the use of batch-charged continuous flow rmeaatcetroiraslsd(eRvuebloepyeadnadt CUaDmReIst,o 1s9t8u5d,y RthuebtehyeramnadlGsrtaanbitl,it1y9o8f8o).rganic Method comments: Laboratory-scale study simulating a full-scale hazardous waste incinerator. The System for Thermal Diagnostic Studies s(eSvTeDrSal) mwaajsorusceodmfpoorntehnetsi:ncaintehreartmioanl srteuadcyt.ioTnhceomipnasrttrmuemenntt;caontsriasntsfseorf line; an analytical gas chromatograph (GC), a mass selective detector and a computer workstation. 002026 1 : Year completed: Phase | testing began in 2001 and the final report was written and completed in 2003. GLP: No Test Overview: Testing was completed in 3 phases. Phase|tested the initial test protocol and project objectives, Phase Il consisted of the method development work, and Phase Ill revised and applied the test protocol. The overall goal of this study was to determineif incineration is a potential source of perfluoroalkyl sulfonates, .g., perfluoro-octanyl sulfonates (PFOS), which has been found widespread in wildife tissue samples Phase I: Objectives of Phase | were to determine if Cs perfluorosulfonamides form pceormfbluusortoiopnrepcruordsuocrtosfipnetrhfelufoorromocoftapneerfsullufoornoaotcet,anteo dseutlefornmaitnee(tPhFeOeSx)toenrta of conversion of PFOS under conditions representative of hazardous or pmruondiuccitpsa,l awnadstteo dinectienrermaitnieonif,tthoeidseunltfiufryptrheesemnatjoirn tfhlueoPriFnOatSedicsombustion quantitatively converted sulfuryl fluoride (SOzF2) to at sulfur dioxide and/or thionyl high temperature, fuel-lean fluoride (SOF2) combustion and conditions. `The development of the test protocol was based on the use of batch- scthaabirlgietydocfoonrtgiannuiocusmaftleorwiarlesa.ctAonrasldyesivselwoapsedpeartfUoDrRme!dtoussitnugdyint-lhienethgearsmal chromatography/mass spectrometry (GC/MS). The analytical focus was identification of stable quantification of sulfur fluorinated organic intermediates and oxides in an attempt to recover 100% the of the initial sulfur in the sample. Sulfur selective detector (MSD). quantification was performed using a mass tGeamsp-eprhaatsuerethneeremdaeldsttaobiglaistiyfaynsalaymspilse,wa2s) fpetrhfeoprhmaedsetochdaentegremiisnteh1e)rtehseult of evaporation or deposited by the decomposition, and 3)if a sample. Then testing was non-volatile residue is performed to assess whether the gasification products reactor conditions. have the ability to be transported under the flow The STDS chosen as twhaesfuseellefocrtesdamtoplceasythoauttwtehries incineration study. hydrogen deficient. Methane Two was ptreemlpiemriantauryrecsom(6b0u0stainodn 9t0es0tsC.) were selected for the study base0d o0n2027 :| Phase II: The purpose of PhaseIl of the incineration study was to verify gasification of PFOS and transport of PFOS through the system. Recovery efficiencies and detection UDRI limits thermal instrumentation for sulfur compounds (SOz, SOF, precursoorf and SOF) and perfluorooctane PFOS) were determined through sulfonyl fluoride analysis using a (POSF, GC/MS a system. Measurements were performed in duplicates. Hexafluoropropene (HFP) was selected as the surrogate volatile fluorocarbon. Recovery efficiencies and detection limitsofvolatile Cy-Cy fluorocarbons were also established. A quantitative method osf ampling the reactor effluent was established. ORBO PUF cartridges were used for sampling PFOS and precursors from the reactor effluent. |] (: peakary 3: concentration Linear Fit Equations and Detection Limits Linear Fit Lik Detection [ SO, |V-58813E3"X[-003078 1|5471 85E5| [ SOF,|V=8333E3"X-[0799.9401]2637 0364| [[PSOOSF E | |vV==11.003314E42'X+31.E8275366X--[[01..B909d70|8o] d2ad011es]| [WFP | V=-14075E4'X[0-992978|25339E6| Transport Efficienc [SystemTransport | Directinjecton [ PeakAra | PeakAra |Efficiency | | (%) | [Sample T T 2dTAVGH| 1 | 2[AVE[ayemin] [S0, |"9130332| 8980717 | 9055525 |11952302 | 1762367] Liss7285] [SOF; | 25244352| 25203780| 35224066 |24862639 | 24773683|24818161| 76.4] 1016] [SOs:| 86850304| 85572809| 86211557 |84435720 | 79738316| 82087018] 105.0] [BFP 148670354 | 145606343 | 147142849| 148372504 | 142271896 | 145322200] 1013] Phase Ill: Phase Ill consistedof 8 different tests (SO, Transfer Efficiency Tests, Laboratory Spike Analysis for PFOS, Heated Blank Combustion Test, `Combustion Tests for PFOS and two Cs perfluorosulfonamides, Heated Blank Combustion Test (repeat), Transfer EfficiencyTest for PFOS, Sulfur Recovery Analysis as SO, and Extracted lon Analysis). In-line and off- line GC/MS analysis was conducted So the combustion gases. The off- line GC/MS analysiis was used in repplliiccataete runs ii n ordelerto capy ture 002028 3 more volatile compounds and because there were resolution issues with t(hpeoliynu-rlientehsanaempfloianmg)acpopllreocatciohnfoofr tthhee sruelafcutrorreecfoflvueernytraanted. chPeUmFical `extraction of the reactor and associated transfer lines was completed. LPCU/FMSc.artridges and extracts were delivered to 3Mforanalysis of PFOS by SO; Transfer Efficiency Tests were performed to confirm rests from spyhsatseemIlc.onTthaemiHneaattioend.BlFaonukr CaonamlbyussetsiownerTeesctosndwuecrteeudsfeodr tthoeexHaeamtiende sBlaamnpkleCoamnabluysstisi,onoftfe-sitne(nG-Cn/eMGSCa/naMlSysainsaulyssiinsg,TPeUdlFarcoblalge,ctaenddoff-gas reactorftransfer line system extraction using methanol). RESULTS SSOO;; tTrraannsspforetr Efficiency Test: efficiency was 83.7% in Phase Il, slightly higher than the tPrhaansspeorIltreefsfitcsi,en7cy6.f4or%,SOwhFi;cwhagsiv1es00a%veirnaPgehavsaelsueIlofan8d0.I1l.%. The Laboratory Spike Analyses for PFOS: Phase Ill laboratory spikes included fourteen 1 pg and twelve 10 ug spikes osifnPglFeO1Su(gasPtFhOeSPsFpOiSkea(naisont)heinPtoFtOhSeKPUsFa'lst)(osfetehAeptpuebnidngixus5.e)d, aansdtahe rspeiakcitnogr s(ocloumtbiuonstwiaosn cinhjaemcbteedr)juastndbetlroawnstfheer sliunref.aFceo,r tahnedPaUllFowsepdikteos,drtyhefor 8302%moinfutthese,PaFnOdSthweansexrtercaocvteerdedasfrinomthtehetes1tnpgroPcUedFursep.ikAens waivtehraagreeloaftive standard deviation of 10%. An averageof 92%ofthe PFOS was croemcobvuesrteidonfrcohmatmhbeer10spuigkePUinFvoslpviekdesinwjietcthiangnaR1SDugofsa7m%p.leTohfePsFiOngSleinto tbhleowrienagctwoirthashiagh1 puugri/tly snoilturtoigoenn.inAfHtPerLdCrygirnga,dethmeettrhaannsofle,r alinnde wdraysingby wbaayssspheuimnmbgplsie.ndg~otTofhte5h.et5ortmealaLcPtooFfrOmaSerntedhcatonhvoeel1r.ty1hfrmrooLumgvhotthlhiuesmraeesaascsestmeobmrlbfyliiyrnawtnwaslosifnseeeerxqtusrepanictktieeadl was 188%. This single spike result suggests that an errr likely occurred during preparation, extraction or analysis. Nevertheless, this spike result confirms that PFOS can be extracted from reactor/transfer lines. ull PFOS Laboratory Reactor/Transfer Line Spike Analysis: [PFOSTTM 1 232 | 716 | 002029 4 =e [Brace Extracts T7171] HTehaetfeldowBplraofnikleCaonmdbucasrtriieornflAonwalvyosliusm:e used for the heated blank analyses at 600C and 900C are given in the following two tables. |rime[ owe Raa | otame| Vou: Flow RateRPeraocfitloerfo|r HeaPtyerdopBrloabnek A|nalyTsoitsalatF6l0o0wC| Total |Sampled (milmin) (milmin) (mimi (mi) (mi) [0-7201 705 ~T" 080 | 1130 | 2260] 20.0] [120-130| 705 "10805463"[11301463 | 2.16] 1.9] Hal pe Las 1 [40-|791063(0Hel| 453(Hef| GE 1356 [aml | 452] ow 4.19] I "Linear increase (a1 pproximate). *~ SwTitocthaedltVoohuelmleum(mfo)r|swee3p1..8 0Sa]mp2le0d.13] volume for PUF andTedlarbag collection. BAERdeal do Flow Rate Profile for Heated Blank Analysis at 900C F(mliomwiRna)te | F(lmiolwmiRna)te (mRialmtien) Volmiu)me| Volmui)me* [0-150| 760 [070[830 | 2075] 18.05] [150-160|" 760 [0705463 |830>1223| 171] 154] [160-170| 760 1 463 [| 1223. | 204] 17] [70-750 [7654 He"| 453(Hef| 11.07 | 369] 3.36] CL *LiI near increase (approT ximato e). l > SwiV tcheo d tou hellum m foreswe2e( 8p..*1m 9S]am) p2le5d.| 02] volume for PUF and Tedlar bag collection. T0h0erCe)wfaosr bnoothmeian-sluirneabalned cooffn-tlainmeinGaCt/ioMnSfoarnaeliytshiesr.teAmpsemraaltluarmeo(u6n0t0 oafnd PheFaOteSd(0b.l0a8nukgc)owmabsustdeitoenctteesdt.inTthhee aremaocutonrtfotfraPnsFfOerSlienxeterxatcrtaecdtiinn tthhee first second heated blank combustion test was below detection limits. Combustion Tests for PFOS and two Cy perfluorosulfonamides: tPhEeOfSourinsTerqaunesnfteira-lLcionmebEuxsttriacotns:teTsatbsloen5.P4F.O1.S1,ofatthoetalreopofrt1.s83hmowgsotfhPatFOiSn . were gasified in the pyroprobe. 045+0.38+0.5+0.5 = 1.83 mg 002030 5 cTaobmlbeusst5i.o4.n2.t1esatsndon5.F4C.3-.810o7fAtahendreFpCor-t13s9h5o,wttohtaatl,soifn t2h.e16fomurgsaeqnuden2t.i0a2l mg, respectively, of product dry mass were gasified example, for FC-807A: in the pyroprobe. For 0.50+0.59+0.45+0.53 = 2.16 mg The toa gasified samples then combustion chamber. passed through heated (260C) In the combustion chamber the transfer lines volatlized gases 1395) omriexxecdewsistahinre(arP-FsOtSoi)chainodmewterrice amountsofair (FC-807A and FCexposed to 600or 900Cfor about 2 streacnosnfdesr.linFersotmo ahemrbei,enthtetecmopmebruasttuiroen pporloyduurcettshpaanessfeodamthcroonutgahin2i6n0gC cartridges or Tedlar bags. oFfoltlhoewsinegcotnhde chaolmfboufsttiheoncotmesbtusstatio9n00chCa,mtbweorsaenqduetnhteiatlramnestfheranloinlesexdtorwacnt-s streamofthe combustion following table shows the chamber were analyzed for concentration and amounts PFOS. The of PFOS (as the K sal), detected in the chamberfiransfer line. This is the amount that tawcocuamtu6l0at0edC ianntdhetwcohaamtb9e0r0/tCra,nfsofreeralcinhepfrroodmuctth.eTfhoeurtsoteaqlueanmtoiualntteosfts, PFOS PFOS dgaestiefciteeddininetahcehexoftrtahcetfsowuratsesetqsuiovra,laenststhooawbnouitn 0.04% of the the following equation, tests. 0.009%of the 1.83 mg of PFOS gasified in the four sequential 100 X (0.00011+0.00005)1.83 = 0.009% pFeorlfllouwoirnogotchteylfsouulrfsoenqaumeindteiparlocdoucmtbsu,stPiFoOnStewstassobneeloawchdoeftetchteiotnwloimits in t`haemocuhnatmobfePrfFirOaSnstfheartlcionueledxthraavctes.beBeansperdesoenntthien deeatcehcotfiotnhleimtitwso, the gseiqvueennitniatlheexTtarbalcet w1aosnlpeassgeth7aonf0A.p0p3e5nudgi.xB4a,stehde o2.n1t6hemgstaoincdhi2o.m0e2trmyg of FC-807A formed a moraxFCi-m1u3m95ofs1o.li8d7smggasiofrie1d.5i5n the four sequential tests could mgof PFOS (as the K salt), have respectively. For example, for FC-807A: 2.16 mg X 0.519/0.600 = 1.87 mg `(wahsetrhee0K.5s1al9t)a.ndTh0e.6f0o0llaorweintgheshforawcstihonoswofthfilsuocrailnceuliantiFoCn-w8a0s7Adoanned fPorFOS PFOS using the data in Table 1, page 7 of Appendix 4: 002031 6 | : Fraction F in PFOSK' = (1917)/(12'8+19"17+16*3+32*1+30.11) =0.600 cWahrebroen,1o9,xy1g2e,n,16a,n3d2paontdas3s9i.u1m,arreestpheectmiovleelyc.ular weightsoffluorine, Tlihnuess,wtahsislaensaslytshiasn s0h.o0w0s4%thaenadmloeusnstthoafnP0F.O0S05i%n otfhethcehammabexrifmtruamnsafmeorunt of PFOS that respectively. could have been For example, for fFoCr-m8e0d7Af:rom FC-807A or FC-1385 100 X (< 0.000035+ < 0.000035)/1.87 = < 0.004%. Transfer-Line Extraction Results: [E2 xtraction TPFOSK (pgal] |PFOSK (ug) || se Ton [2 "Test Joos | | [Eases 7 | bo le Teo Tess | Two Jeo | [Fcsora-- 7 ---- ------ OO T<o0 Too Two Joos | PEOS table, in PUF Extracts: The calculation below, shows that the amount of PFOS making using data in it through the the following combustion system and the 0.45 mg extracted of PFOS from the PUFs gasified at 600 was C. equivalent to less than 0.5% of 100 X (0.00062 + 0.0016)10.45 = 0.49% g`aTshiefdiaedtaatin9t0h0isCtamblaekaelssoitsthhoouwghthtatthaebsoyustt0e.m07an%d owfatsheex0t.r5acmtgedoffrPoFmOSth.e PUFs. 100 X (0.00011 +0.00022)/0.5 = 0.066% SPuUbFstEaxntcreactio|n TReesmuplts: [PFOS [FCA395 1600 Teo Teo Tso "142 [251.640 [062.16 | THM2 -- Ta31.901_Joi1.022 | 112 -- T<500,<600 [<012,<012 | 112[<500.|< <016 2.<0 0.120| 002032 7 [Fe8oA Teo Tso Tiz 42 [00.600 [<02.002 | [<500,<600[0.12 <0.12 ] `cTohmebuPsUtFioEnxtorfacpteirofnluRoersoualltksyltsaubllfeon(aambiodvee)coamlspoousnhdosw,s ntohatP,FfoOlSlowwiansg dqueatnetcitfeidcaitnioPnU(FLLeOxQt)ra.ctBsasatedcoonncetnhteradteitoencstiaobnolvimeittsh,ethleowaemroluimnitt oefxtracted farnodm0e.a5c5hmogf tofheFtCw-o80se7qAueanntdiaFlCP-U13F9s5wgaassilfeiesdsattha9n000.C1,2 cugo.mObfustthieon0.45 `could sal), have formed respectively. a maximum For example of 0.39 mgor for FC-807A: 0.42 mg of PFOS (as the K 0.45'0.519/0.6 = 0.39 mg wKhsearlter0e.s5pe1c9tiavnedly0..6T0h0eafroelltohweinfgraecqtiuoantsioofnfsltuhoruisnsehionwFtCh-a8t0t7hAe aanmdouPnFtOoSf 0P.F0O7S% ionftthheecPoFmObiSntehdatPcUoFuledxthraavcetsboefetnhefo9r0m0edCftreosmtsbwotahsFlCe-s8s0t7hAa:n 100 X (<0.12 + <0.12)380 = <0.062% and FC-1395: 100 X (<0.12 + <0.12)/420 = 0.057%. TTrharneseptoyrptesEfoffitceisetnscwyeTreestcosnfdourcPteFdOSto:examine transport efficiency. Tgehneesreatteesdtsduwreirneg tdhoencetomobvuasltidiaotneofthfaltuoPrFoOchSemciocualldsbien dtehteetcetsetdsyifsittewme.re Tpyhreopfirrostbteesatnedxtarmainnseposrttheed ttrharnosufgehr etfhfeicrieeancctyoroftosatmheplPeUsFgacsairftireiddgienst.heThe sceocnodnednsteedstoinnvtehsetiwgaaltlessotfhtehpeopsysriobiplriotbyet/hraetatchteorvotlraatnisifzeerdlPinFe.OSThe third tbeesttreaxnasmfeirnreesd thootwhemuPUcFh'sPFanOdShvoolwatmiulczehd winoutlhde ccoomnbduesntsieoninrtehaector could reactorftransfer line tubing. fIonltlhoewi1n*g Ttarbalnesfsehroewfsfitchiaetncnyotedsette0c.t4a8blmegaofmPoFOuoSfntwhtaes vvoollaattiilliizzeedd.PTFhOSe. wsaamsprleecwovaesreeditfherromthtehremaPlUlyFdciasrstorciidagte.edTihnitsherepsuylrtopinrdoibceatcehstahmabtetrheor the gasified transfer sample was line tubing. completely condensed in the pyroprobelreactor i PUF Extraction Results for 1* Transfer Efficiency Test 002033 3 PFOS (pg/uh) [7[1[<a50s 0 [i 0.n 2| Tmheaesnuerxatbtlweoatmaobulnestsshofowthteha0t.,47inmtgheo2f"PtFrOanSsftehratefwfaicsievnoclyattiesitz,ed survive tpryarnoslfyesrislicnoesn.ditHioownesovfetr,henopydreotpercotbaeb,leaanmdocuonlltecotfePdFinOtShesuhrevaitveeds transit tothe PUF sampling cartridge. Methanol Extraction Results for 2 Transfer Efficiency Test [PEOSTT | sor| 21 | T7727T<i00|<024| PUF Extraction Results for 2" Transfer Efficiency Test PFOS | [> 17 1<10.0 |<05| a] thThehiasettifenosgtl,liotPwtiFonO5g7St5wwoCa.tsTahbvleoelsafitsrishitzotewadbrlieenstsuhlhetoscwoosfmttbhhuaestt3mieoatnrscaunhrsaafmberlbeeefrafmi(croieueannccttyosrt)eosfbt.y In dvaoltaatiflrzoemd tPheFOfiSrstpoafstsheedsefrtoambltehsesrheoacwtotrhatto 1t2he.8P%UFosf.thCea0lc.u4l6atmigonosf using PFOS PFOS volatiized volatilzed iinn aHier. reached the PUF, as did 5.2%ofthe 0.48 mg of 100 X (0.058 + 0.0011)0.46 = 12.8% 100 X 0.025/0.48 = 5.2% Ttrhaenssfeercoefnfdictiaebnlceybteeslto.wThsehsoewswemreethfarnoomleexxttrraaccttsdoaf:ta1o)btthaein2e6d0inCthe 3 arseascotcoiraftterdantsrfaenrslfienreltiunbeitnugbainngdj2us)ttuhepsrtoroemamteomfptehreatPuUrFe vcaarltvreidagneds. oCfalPcFulOaStio(n5s.6u%sianigr,d3a9t.a3f%roHme)thiasccsuemcuolnadtteadblien hthoe wreatchtaotrlfatrrgaenrsfaemroluinnetss upstream of the PUF cartridges. The majority of the PFOS accumulated in 002034 9 the portionofthe transfer line heated to 260C, suggesting that this `compound could condense, or was in a particulate form, at this temperature. 100 X (0.024 + 0.00045 + 0.0024 + 0.000079)/0.48 = 5.6% 100 X (0.171 + 0.0019 + 0.0077 + 0.00035)/0.46 = 39.3% meg Tere ogy| ay| 3" Transfer Efficiency Test PUF Extraction Results [7 T23g3l0)[| (ng) s8 | Ar | [2 Te 7 ae 4 1 1r 215 || [ 2" <i00[<0.1|2 3 Transfer Efficiency Test ReactorValve Transfer Line Extraction Results Air Notes: actor' | 1% 171|90 248| [Feo Valve" Ti" ee 2} 16|0246| Reactor' [ [12%71722183[|05013 77190|| VaveTM ||" 27 T7925101 8[|1797|| [2%T7110 032 5] 1. The location labeled "Reactor" included the secondhalf of the combustion chamber (575C) and the heated (260C) transfer 2. Tlliehnaeedillneogacdafitrnioognmftr"hoVemalvtvahele,v"eciotnmocbltuuhsedteiPdoUtnFh.echvTaahlmevbevearalnvtdeo tthhee vtarlavnes.fer line and this transfer line were at room temperature during the test. Sulfur Recovery Rate: StBh0ae2s.oefdfNlooinneStOGheFC;/inMa- nSadnsdSyOosf;tfeF-lm;inwweeeGrrSee/mdMeutScehcatnesadhl.ayrspBeeser,castuuhlasfneurStwOhae;sSpOfeo,auknpsdeoambkassienurlsvyienadgs ruessiunlgtsitnoinqueanGtCi/taMtSiv,elitywaansaldyezceitdheedstuolfuusreroefcfo-vienreyGaCs/SMOS.analytical 002035 10 SO, Calibration Results Using the off-line PLOT Column aInpptrhoeaSchO-;thteraansvfeerraegfefirceiceoncvyertyesrtactoenwdausct7e5d.6u%si.ngThtihse off-line is very analysis similator the recovery rates obtained from the in-line analysis, i.e. 83.7 and 76.4%, suggesting that the lack in 100% recovery is due to sample losses in the combustion system and not the sampling and analysis procedures. RlPY id Standard SO; Transfer Efficien [223lt0sotoa7 136E-06 | 1636-06 | 834 | [2213 [estso87] 111E06 |163606| 678 | CTT T Aveage| 756 | Extracted lon Analysis: `The following ions (51-CF2H, 69-CFs, 119-C;Fs, and 67-SOF) were `PaFmOoSn,g athloosweerexmtorlaectceudlafrrwoemitghhettpoetralfliuoonrocahlrkyolmsautlofognraatmes(dfersoimgnteasttesdoans PliFnXeSa)n,daonffd-ltihnee GCsC/pMerSflaunoarloyssuelfsoinnamoirddeesr.toTahinsalwyazse fdoorntehefoprrbeostehnctheeofinpinearbfilluitoyritnoadteedteacntdthseul6f7o-naStOeF-cioonntaiinnainngy ionfttehrmeesdeiaatneasl.ysIemsposrutgagnetlsyt,edthleow levels or an absence of perfluoroalkylsulfonyl compounds in the cnootmbliuksetlyiotno bperoaduscitgsn.ifiTcahnitssroeusurlcteostfrocnogmlyposuugngdessttshatthaarteinecnivnierroantimoenntisa.l cprhercoumrastorosgorfamPsFfOoSr 51o,r o6t9h,earnpder1fl1u9oriooanlsk,ywlhseulnfoenvaatleusa.teEdxtirnaccotnejdunicontion with hydrogen flame ionization detector (HFID) chromatograms, suggest that tr and tetrafluoromethane and hexafluoroethane were likely combustion products. PDuFeOStotaesnt,aptpheareexnttralcotsesdoifosnenasniatliyvsiitysogfetnheeraitne-ldinferMomSPdFetOeSctcoormdbuursitngiotnhe. did not indicate the presenceoffluorinated combustion products, unlike tHhFeIrDesdualttas ifnorcaolnljoutnhcetriocnowmiptohutnhdesHFteIsDteadn.d An evaluation extracted ion of the PFOS analysis data for lower molecular weight perfiuoroalkylsulfonate (PFXS) strongly uuR036 1 : fsluugogreosctheedmitchaalt cPoFmObuSstcioomnbupsrtoidoucntas.lsTohgeenPeFraXtSeddastoamsehovowleatdile (low MW) fluorochemicals were present at the same retention time as HFID peaks. APdFdiXtSioncaolmlbyu,stthieornetweenrtieonnetairmleysidoefnttihcealH.FITDhurse,stphoensseamfreofmlPuoFrOocSheamnidcal combustion products likely formed from these two different compounds. aTphperofxolilmoawtienlgyt1w%o toafbtlheastsahto6w00thaCt.thTehiHsFrIeDsulptesaukgagreesatsatn9ea0r0lyCcoismplete destruction of fluorochemicals combustion products at 900C. Integrated HFID Peak Area of PNFeXtSAmaondunPtFoOfS at 600C TaGasified Sample [PFXS |1190193| 052 | [PFOs [35|4706 3814| Integrated HFID Peak Area of PFOS at 900C Net Amount of G=asified Sample [Fos |30041 | 050 | INCLUSIONS dTehgirsaldaabtoiroantocroyndsittuidoynsusleikdelay tsoysotcecumrddeusriignngemdutnoicsiipmaullaotrehtahzeatrhdeorumsalwaste incineration. When perfluorooctane sulfonamide containing products (FCw1e3r9e5 1an0d0F2C5-%80a7nAd) LwCe/reMSexapnaolsyesdistoshthoewseedcothnadtitnioonqsu,anStOi;fiarbelceovaemroiuesnts tohfePsFyOsStem(.<0T.0h7e%SoOf;thraetssttosicshuigogmeetsrtictahlaltytphoespsiebrlfei)ucwreorseulrfeolneaamsieddesfrwoemre isnucbisntearnattiiaolnloyfdpeesrtfriouyoerdoaonctdatnheesLulCf/oMnSamriedseulstwsosutlrodnngloyt rseulgegaessetPthFaOt S to etmhiesesnivoinrso,nsmehnotw.edFuarnthaebrsmeonrec,eomfas6s7-sSpOecFtriaolnse.xtrTahcetesdeiioonnsanaarleysis of the tirndaincsaftoirvem toof pPeFrfOlSucrionatlhkeylesnuvlfiornoynlmecnotm.poTuhnedsa,bswehniccehocfoutlhde p6o7te-nStOiaFlliyons suggests that the carbon-sulfur bond was completely destroyed (and did enontvirreofnomremn)tianltthreancsofmobrmuasttiioonnoftecsotsm.buTshtiisonrespurlotdsuuctgsgetsotfsotrhmatPFOS is also unlikely. vu2037 12 When PFOS was exposed to this combustion system, sulfur recoveries varied from 50 to 60% and LC/MS analysis showed that only a small faruatchtoirons osfpetchuelPatFeOtShatthlatowwasuslfvuorlarteicloivzeedrimeasdweeritetlhirkoeluyghdutehetosystem. The cthoendseynsstaetmiotno wtihtehiPnUtFhse daeppcarreaatsuesd. aTshtehefrtaecmtipoenraotfuPrFeOoSf tphaescsoimnbgutshtriooungh chamber increased. At 600 C, about 0.5% of the gasified PFOS made it completely through the system and was collected on the PUFs. When the `PcFomObSusctoilolneccthedamobnetrhetePmUpFersatwuarse dweacsreianscerdeatsoedabtoou9t000.0C7,%t.he amount of CdiyfiouroCr;oeftlhueonreoa(lPkFanOeSs o(nlliyke)lyanprdod1,u2c-tdsifalrueoeriotehtehrenCeHF(sF,C-C1F39,5oornlCyF))w,er1e,1the only highly fluorinated compounds observed in the system effluent. Fiuorobenzene was also detected (FC-1395 and FC-807A only). No higher molecular weight fluorinated polycyclic aromatic hydrocarbons, and no perfluorooctane sulfonyl precursors of PFOS were present in the system effluent at detectable levels. Tinhdeicraetpeosrtthsattaptreosptehraltytohpeerdaattianfgrfoumllt-hsicsalleabionrcainteorrayt-isocnalseysintceimnsercatainon study aIndceiqnueartaetiloynodifstphoesseeofflPuoFrOinSataedndcotmhepoCusnpdesrfilsunoortolsiuklefloyntaomibdeesa. significant source of PFOS into the environment. With the exception of stable Cs and eCm2itfltueodrdoucrairnbgontsh,efilnucoirnienraatteidonorogfanPiFcOiSntoerrmpeedrifaltueosroaorcetaunnleiskeullyfotonabmeides. Submitter: 3M Company, Environmental Laboratory, P.O. Box 33331, St. Paul, Minnesota, 55133 DATA QUALITY Reliability: Kiimisch ranking 2. Purity/Compositionof 1395 were not properly characterized in the study. FC-807A and FC- REFERENCES SRteusdeyarccohndIunscttietudtea.t the request of 3M Company by University of Dayton OTHER Last changed: 7/03/03 voRU3B 13