Document EdLRw26nLwvraR5gpZ5y2Lb1N
SolubilitEystimateofFC-95 by use of XerlexTOC Analyzer
WATER SOLUBILITY (BY ANALYSIS OF TOG)
TEST SUBSTANCE
Identity:Peffluorooctanesulfonatmea;y alsobe referredto as PFOS or FC-95. (1-Octanesulfoniaccid,1,1,2,2,3,3,4,4,5,5,6,6,7,7,8,8,8heptadecafluoro-p,otassium saltC,AS # 2795-39-3)
Remarks field: The testsubstance isa whitepowder (3M Lot 583) of uncharactedzed purity.
The followingisabbreviateddue tothe factthatthisstudy has been superceded by a more recenttest.
METHOD
Method: Procedure developed by 3M Company GLP (Y/N): No Year (studyperformed):1982 Remarks field: The twosamplessubmittefdortestinwgere duplicate filtratoefsa mixtureofthetestsubstance dispersedinwater ata concentrationof0.25%. Undissolved materialwas noted inthe mixtures. The mixtureswere storedinan incubatorat20 + 1OC from 11-24-80 until filteretdhrougha Whatman glassfiberfilteprriortoTOC analysison 6/16/82.
RESULTS
Values using the TOC Analyzer DC-80: Sample 1: 9 ppm TC Sample 2: 9 ppm TC
Values using theTOC AnalyzerDC-52 High Temperature (8000C) method:
Sample 1: 195 ppm TC Sample 2: 195 ppm TC
Remarks: ResultsfortheDC-80 UV-PersulfatAenalyzerindicated therewas no breakdown ofthe C-F bond, so itwas determined thatthis was an unacceptablemethod. Itisnoted thatthe testauthorfeltthe DC52 analysiswas accurate.Thereforeusingthe molecularweight of Perfluorooctanesulfona(t5e38),a solubiliotfy1090 mg/L can be calculated.
Description of solubility(e.g.,miscibleto soluble to not soluble): Slightlsyoluble.
DATA QUALITY
ReliabilityK:limischranking= 3. Thisstudydoes notmeet criterfioar qualittyesting.Actualconcentrationwsere notmeasured. The valuewas determinedby indirecmteasurement. Additionalltyh,isstudylacks sufficienctharacterizatioofnthe testsubstance purity.
REFERENCES
Thisstudywas conducted by XERTEX, Dohrmann DivisionofSanta Clara,California1,980 on therequestof3M Company.
OTHER
Submifter: 3M Company, EnvironmentalLaboratoryP,.O.Box 33331, St.Paul,Minnesota,55133
Last changed: 5/3/00
Domit4m DrAmm 3240VGTT SOLR"ARD,SANTACLARA.CAUFORNIA9W50 TELE"M (406)727-WOD TELEX 346395
June 29, 1982
Wade Scheil 3M/Envirormental Lab Box 33331, Bldg. 2-3E-09 St. Paul, MN 55133
bear Mr. Scheil: We have completed thg analysiI s of your samples, Project No. 1653. The
results are a,-arized in the attached Application Report. As we discussed over the telephone, your perfluoron&ted organic samples
were analyzed for Total Carbon using two TOC methods: the DC-80 UV-Persulfate Analyzer and the DC-52 High Temperature Analyzer. It is apparent from the results that the UV-Peroulfate Oxidation doear-not breakdown the C-F bond so it is not an acceptable method. Since you*already have a DC-52 but need to analyze for trace carbon, I suggest that you push it to its lowest detection limit possible by using the TC mode and keeping the system very clean.
If you have any questions concerninlrthese results, please feel free to contact us directly.
Sincerely,
4ohn4T. Martin Applications Group Leader JTM/rad cc: Phil Brown
Fred Harper
EM
DOHMANN DRA$M
3240 SCOTT BOULEVARD, SANTA CLAR& CALIFORNLA 95050 TELEPHONE (408) 727-6000 -TELEX 346395
APPLICATION PROJECR REPORT REPORT NO. 1653
SYSTEM USED: Total Organic Carbon Analyzer DC.--80
INSTRUMENTAL CONDITIONS: As per equipment manual
SAIAPLETREATMENT: The two samples were analyzed for total carl)onby injecting 200ul aJLiquots.
DATA:
1653-1 1653-2
9ppm TC .9ppm TC
COMMENTS: Your perfluoronated organic was not completely oxidized by the LIV-
- 151)t^wl@: persulfate reactor. The real TC in both samples as analyzed by the high temp-
erature (8000C) method on the DC-52 is 195ppm-C.-,Fc
'Tos3v
it-L.ss-C",k.-
RECOMMENDATIONS: ljnfortunely the DC-80 TOC Analyzer can not be used to sanalyze
perfluoronated organics.
EQUIPMT REQLTIRED FOR THIS ANALYSIS
Instrumentation: Total Organic Carbon Analyzer DC-80
P/N 832-210
ff')
74c I
C63
Ire_
AZ
7At, 7ke
L
7A CJ'LOIM"
MlqAIA/-"
This2-aw fwwo wn WW ftr mft iL
COMMON Ifa
thepk*-
JJA
Alu4
64,06,.2AIA;
14t@ i.,@' &,VFL
t/
o7,F- -
OF -rE e!;*AA@JC. zVt@=F-,eZ,9-L--
f T Y16
DAM
it