PRIZE 20% 7 CHRONIC TOXICITY TO FRESHWATER INVERTABRATES (Daphnia magna) TESTSUBSTANCE Identity: Perfluorooctanesulfonate; FC-95. (1-Octanesulfonic may acid, a1l,s1o,2b,e2.r3e,f3e,r4r,e4d,5t,o5,a6s.6P,7F.O7,S8.o8r.8- heptadecafluoro-, potassium salt, CAS# 2795-38-3) 3ReMmlaort knsu:mbTehre21l7e.st sSuabmsptlaencweaiss astwohrietdeupnodwedrera.mbiSeanmtpcloendwiatsiontsakperniofrrtoom etelsetmienng.taPluraintayldyesteesrmteicnhendiqtuoesb.e 90.49% by LC/MS, 'H-HMR, '*F-NMR and METHOD Method: 1193-87 OPPTS 850.1300, OECD Guideline 211, and ASTM Standard E Type: Semi-Static Life-Cycle Toxicity GLP: Yes YSpeeacriceosm:pDlaepthendi:aSmtaugdynacompleted 1999.

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Common SENTUY 43014704 SEER, gl ff TAFT, STETTINIUS & HOLLISTER LLP 425 WALNUT STREET, SUITE 1800 CINCINNATI, OHIO 45202-3957 Faxs5123z81.0205 entation com ARR26 -- 1163 andipucsamn: EC Ea EL, Rowl(soEtra@miesArt.o0Lw6oc%ormy zy December 16, 2002 CERTIFIED MAIL NO. 7002 0860 0006 6119 4484 RETURN RECEIPT REQUESTED Mary Dominiak United States Environmental Protection Agency COfhfeimciecoaflPoClolnuttriooln,DiPvriesvieonntion and Toxics 1200 Pennsylvania Avenue, N.W.

= --- SERVER WIAPR-9 PH 2:25 ARA2-G 1266 EE TRP Telomer Research Program A, asco Ig == Clariant 31 March 2003 Telomer Process Diagram for US EPA - OPPT DaKIN Pw i Contains no TSCA CBI 3 I re) TetraCflFuorCoFet,hylene F(CF,F),1 F(TCeFl.oGmFe,r) 8CRl,odGiHd,e1 Tel"oBumielrdiInngtBelromcekdsi"ate FTCeFl.omFe)r,BCOHl-efHin, F(TCeFl,oCmFe,r)8,CAHl,cCoHh,o0lH uAcsreydla1tecMreoantoemFeirniishtehdePmraosdutcctsommon raw material FICTeFl.oCrFme)r,CAcHr,yClHa,te0GM(o0n)oCmHe=rCH, 4 FiJnAiLsGhnedd * mAcatnuuaflacptruorciengss and Spraamcetiacneys vary by PFOAis not used or added in these processes + Generally, these processes are closed and PFOA creation aenxdp/eocrteedmitsosbieonast are very low levels ro = Telomerization was initially developed free-radical polymerization of ethylene.

AR R26 -- 134.8 Telomer Research Program FPF AGC -_ --_--mm--m = Clariant CHINE Report Title: Aqueous Stability of8-2 Telomer B Alcohol as.

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AR R26 - 0757 TOXICITY TO AQUATIC PLANTS TEST SUBSTANCE identity: A mixture containing perfiuorooctanesulfonate, which may also be referred to as PFOS, Octanesulfonic acid) FC-95, (CAS # or as a component 2795-39-3).

EET AR 226 - 0940 August 30,2000 MUrS.

PER6SCOONFINDEANTILAL

BACK TO MAIN BIOCONCENTRATION (PARTITION COEFFICIENT) TEST SUBSTANCE Identity: Perfluorooctanesulfonate; may also be referred to as PFOS or FC-95. (1-Octanesulfonic acid, 1,1,2,2,3,3,4,4,5,5,6,6,7,7,8,8,8heptadecafluoro-, potassium salt, CAS # 2795-39-3) Remarks: The test substance is a white powder.

Decomposition of Perfluorooctane Sulfonate by Combustion Processes Introduction To understand the potential degradation pathways for perfluorinated chemicals, it was necessary to model the thermodynamics of incineration processes.

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