Document 4vn3XKrGNemRodR7ZgR30mRbx
.
AR 226-col3
CAS Number 1763-23-1, 29081-56-9, 70225-14-8, 2795-39-3, 20457-72-5 / 3M Company / 4/27/2000
1
Voluntary Use and Exposure Information Profile
Perfluorooctane Sulfonic Acid and Various Salt Forms
L
CHEMICAL IDENTIFICATION
`Chemical Name: `CAS Number:
Perfluorooctane Sulfonates
Various, including:
1763-23-1 (acid) 29081-56-9 (ammonium salt)
70225-14-8 (DEA salt)
2795-39-3 (K-salt)
29457-72-5 (Li Salt)
sTuhmempaerrifzleuotrhoeocdteasniegnsautlefdonTaiteeraInpieornf(luPoFrOoSc)hehmaiscanlosstpheactifairce CalAl Sconnsuimdbeerre.d pTehreflluiosrteodocstaaltnsc
sulfonates.
n COMPANY IDENTIFICATION
Company Name: 3M
Site Locations:
1)
10746 Innovation Road
Cottage Grove, MN 55016
Technical Contact:
PAhdodnree:ss:
2?)
1400 State Docks Road
Decatur, AL 35601
WA. Wepprer
635M1/C7e3n3te-r6,37B4uilding 236-1B-10
St. Paul, MN 55144
HL ON-SITE ACTIVITIES
CAs #
21076038-1235-619
70225-14-8
2795-39-3% 29457-72-5
Mfg. (1997)
Les Than
200,000 Ib/yr.
Imported
00
0
0 0
Estimate the amountof subject chemical distributed off-site:
95% of manufacture/import
*Submitted in 1998 TSCA IUR additional information.
* CAS Number 1763-23-1, 29081-56-9, 70225-14-8, 2795-393, 29457-72-5 / 3M Company / 4272000 2
Narrative Description and Process Flow Schematic:
3M Company utilizes a process known as Simons Electro-Chemical Fluorination (ECF) to synthesize organofluorine molecules. In this process, organic feedstocks are dispersed in liquid, anhydrous hydrogen fluoride, and an electric current is passed through the solution, causing the hydrogen atoms on the molecule to be replaced with fluorine. The predominant components of the products created by this process have the same carbon skeletal arrangement as the feedstock used, but with allofthe hydrogen atoms replaced by fluorine. However, fragmentation and rearrangementof the carbon skeleton can also occur and significant amounts of cleaved, branched and cyclic structures may be formed. The degreeoffluorinationofthe organic feedstock is also dependent upon the specific carbon chain lengthof the feedstock and parametersof the ECF process such as electrical current and the length of time the process is run. Itispossible to synthesize fully fluorinated or perfluoroorganic `molecules where all of the hydrogen atoms of the hydrocarbon feedstock have been replaced by fluorine atoms. Using these perfluoroorganic molecules as basic building blocks, unique chemistries can be created by further reactions with functionalized hydrocarbon molecules
3M has produced sulfonyl based fluorochemicals commercially for over 40 years using the ECF process.A basic building block of such products and the highest production volume fluorochemical 3M manufactures is perfluorooctanesulfonyl fluoride (POSF). The starting feedstock for this reaction is 1-octanesulfonyl fluoride. (Reaction 1)
Reaction | CiHpSOF + 17 HF 1-Octanesulfony! fluoride
Energy
error ECF
CiFiSOF + 17H;
Perfluorooctanesulfonyl fluoride
`The electrochemical fluorination process yields about 35%-40% straight chain (normal) POSF, and a mixtureofbiproducts and waste of unknown and variable composition comprised of the following:
1) higher and lower straight-chain homologs, i, n-CnFan.SOF, e.g. CF13SO:F, CiF1sSO:F, CoF15SO:F which comprise about 7%of the process output
2) branched-chain, perfluoroalkylsulfonyl fluorides with various chain lengths, about 18-20%ofthe ouput
3) straight-chain, branched, and cyclic (non-functional) perfluoroalkanes and ethers, which comprise about 20-25%ofthe output
4) "tars" (high molecular weight fluorochemical byproducts) and other byproducts, including molecular hydrogen, which comprise about 10-15%of the output
Becauseofslight differences in process conditions, raw materials, and equipment, the mixture produced by the electrochemical fluorination process varies somewhat from lot-to-lot and from plantto-plant. The product that results from electrochemical fluorination is thus not a pure chemical but rathear mixof isomers and homologues. The commercialized POSF derived products are a mixture of approximately 70% linear POSF derivatives and 30% branched POSF derived impurities
y
`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, byproducts and waste products are formed. The volatile waste products, such as
perfluoromethane, have been vented to the atmosphere in the past, but improvements are underway to
capture and destroy these releases by thermal oxidation. The tars are incinerated at an in-house, `hazardous waste incinerator. The byproducts, many of which are incompletely fluorinated with
`hydrogen atoms still present, can be recycled back into the ECF process or are partially degraded in `stabilization processes, and discharged to controlled, in-house, wastewater treatment systems. The treatment sludge is either landfilled or land-incorporated. Someofthe non-POSF byproducts are
recovered and sold for secondary uses.
POSF is itselaf commercially viable product, but is primarily an important intermediate in the synthesis ofsubstances used in many other 3M fluorochemical products. The majority is used to
produce functionally derivatized fluorochemicals and high molecular weight polymeric products.
The perfluorooctane sulfonic acid manufactured by hydrolyzing POSF intermediates to the sulfonic acid. The various salts of perfluorooctane sulfonate are manufactured by base neutralization ofthe
acid to the appropriate salt in a batch reaction.
The following block flow diagram describes the process discussed above.
BLOCK FLOW DIAGRAM FOR PERFLUOROSULFONIC ACID
AND ITS SALTS
Electro-Chemical Fluorination Cells (Octanesulfony! fluoride + HF + electrical energy)
Perfluorooctane sulfonyl fluoride
Secondary Reactors
Hydrolysis & Base Neutralization
Functionally
Derivatized Fluorochemicals
Perfluorooctane sulfonic acid
and various salt forms.
Ss
* CAS Number 1763-23-1, 29081-56-9, 70225-14-8, 2795-39-3, 29457-72-5 / 3M Company / 4272000 4
IV. SITE RELEASE AND TRANSFER INFORMATION FOR TRI CHEMICALS
Not Applicable Perfluorooctane sulfonic acid and its sas are not listed on 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)
Estimated Total ~~ Estimated %
Annual Releases Accuracy of
(Ibs. 1997)
Estimate opionah
Negligible, Not quantified
#days/years release occurs
Stack (point)
0
Comments:
Physical chemical property information and industrial hygiene monitoring support that PFOS salts would not be in the formofvolatile air emissions. Some industrial hygiene testing at Cottage Grove, MN has shown the presence of PFOS in work areas, however the industrial hygiene personnel have indicated that this material is believed to be in the formofdried particulate dust. Although dispersed PFOS has been detected in the work area, the concentrations do not indicate significant contributions to annual site air emissions.
Industrial hygiene data for PFOS salts has not been generated in Decatur, AL because they are in a liquid shurry versus particle form.
Fugitive air emissions testing for the Decatur wastewater treatment system was conducted in late 1999. Results are sill under review and no final report i available. However, no PFOS was detected in air samples.
B. WATER RELEASES FROM SITE
Estimated Total ~~ Estimated%
Annual Releases Accuracy of
(Ibs. 1997)
Estimate (options)
Water releases:
10,000
Numberofdays/year release occurs: (See comments below)
Receiving Water Name: Baker's Creek at the junction with the Tennessee River
NPDES Number: ALD004023164
"CAS Number 1763-23-1, 29081-56-9, 70225-14-8, 2795-39-3, 29457-72-5 / 3M Company/ 4127/2000 5
Comments:
Although manufacturingofthe salts listed on this form is associated with less than 10 wastewaterdischarges per year, the hydrolysis ofother sulfonated compounds to PFOS in the `wastewater treatment system result in an ongoing dischargeof the PFOS compounds. The calculated discharge amount therefore is not attributed to just the salt production. A percentageofthe discharges are from the PFOS salt manufacturing. There is not data to distinguish between PFOS discharge from PFOS salt manufacturing versus hydrolysis of other sulfonated compounds manufactured at this ite to PFOS.
PFOS in wastewater discharge is not measured as specific salt compounds, but instead reflects the total amountofdissociated salts and compounds that hydrolyze to perfluorooctane sulfonate.
COTTAGE GROVE, MN
Estimated Total ~~ Estimated %
Annual Releases Accuracy of
(Ibs. 1997)
Estimate (optional)
Water releases:
1000
Numberof days/year release occurs: 11 times per year
Receiving Water Name: Mississippi
NPDES Number:
MN00001449
Comments: The discharge amount is based upon `per batch estimatesofreleases". Removal of the PFOS to the sludge from the Cottage Grove, MN wastewater system was calculated based upon the measured removalof PFOS from wastewater in the clarifiers at Decatur, AL.
C. ON-SITE LAND RELEASES
DECATUR, AL
Estimated Total Annual Releases (ibs. 1997)
Estimated % Accuracy of Estimate optionat)
Landfill
0
Land Treatment/Land Amendment 40,000
SUunrdfearcgerIomupnoduInndjmecetnitons
Not quantified 0
Other (specify):
CAS Number 1763-231, 29081-56-9, 70225-14-8, 2795-39-3, 29457-72-5 / 3M Company / 4272000 6
Comments:
In 1997, land-amended sludges were held in an impoundment until weather permitied applicationto the field. The impoundment is no longer used as part of the normal wastewater treatment operation except during equipment downtime. A percentageof the PFOS land treatment is from the PFOS salt manufacturing. There is not data to distinguish between PFOS land treatment from PFOS salt manufacturing versus hydrolysisofother sulfonated `compounds manufactured at this site for PFOS.
`The land treatmentofDecatur sludge was discontinued in early 1998. Sludge now is transported to an offsite landfills, afer passing through a thickener and a sludge press.
Estimated PFOS levels in the sludge are based upon the reductionof PFOS in the wastewater stream as it passes through the clarifiers at the site. The PFOS levels in the sludge have been reduced by changes in the amountofmaterials being discharged to the sewer. Wastewater data from 1999 show that PFOS levels in the sludge were less than 20,000 pounds per year.
COTTAGE GROVE, MN
Estimated Total ~~ Estimated %
Annual Releases Accuracy of
(Ibs. 1997)
Estimate (options
Landfill
0
Land Treatment/Land Amendment
0
Surface Impoundments
0
Underground Injection
0
Other (specify):
Comments: Sludge from the Cottage Grove facility is sent to an offsite industrial landsill
D. OFF-SITE TRANSFERS - Decatur, AL and Cottage Grove, MN (1997)
DI. Transfer to Publicly Owned Treatment Works (POTW)
Numberofdays/year the release occurs: Not applicable -- waste is not sent to a POTW.
Annual Transfer (ib): 0
Estimated % Accuracyof Transfer Estimate (optional) (%):
POTW Name:
Not Applicable
Street Address:
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 / 4127/2000 7 D2. TRANSFERS TO OTHER OFF-SITE LOCATIONS
DECATUR, AL
Estimated Total ~~ Estimated %
Annual Releases Accuracy of
(Ibs. 1997)
Estimate options)
Incineration:
Not applicable
Wastewater Treatment (Excluding POTW)
Not applicable
Underground Injection
Not applicable:
Hazardous Waste (RCRA Subtitle C) landfill
Not applicable
Other Landfill
Not applicable
Recycle or Recovery
Not applicable
Unknown or Other
Comments:
COTTAGE GROVE, MN
Estimated Total ~~ Estimated %
Aunual Releases Accuracy of
(Ibs. 1997)
Estimate (options)
Incineration:
0 See comment
`Wastewater Treatment (Excluding POTW)
Not applicable
Underground Injection
Not applicable
Hazardous Waste (RCRA Subtitle C) landfill
Not applicable
Other Landfill
7400
Recycle or Recovery
Not applicable
Unknown or Other
Comments: ~ Cottage Grove facility utilizes incineration for all their drummed wastes. `Waste summary does not show any drummed PFOS salt wastes in 1997.
Sludge from the Cottage Grove facility is sent to an industrial landfill.
CAS Number 1763-231, 29081-56-9, 70225-14-8, 2795-39-3, 29457-72-5 / 3M Company / 4127/2000
VL. ON-SITE WORKPLACE EXPOSURE `CAS Number: 2795-39-3 Company: 3M Company, Specialty Materials Manufacturing Division. Cottage Grove, MN potassium perfluorooctane sulfonate)
`This information will assist EPA 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 activities described in question 2.
1. Estimate the number of workers potentially exposed routinely to the subject chemical for each of the exposure duration times. Ifa 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.
HousDay |
Days/Year
<10
10-100 100-250 >250
=1 7 1
1
esr 7 T1 s ]
[ws 16T[ a 1
Ces 1 111
2. Describe the routine worker activities to which the workers in question 1 are exposed: sampling, removal of filter cake, and drummingofliquids, manufacture an article, ete. For these activities, describe the physical state of the subject chemical (liquid, gas, particulate, or aerosol, etc.) and, if in a mixture, the chemicals concentration:
`The chemical (2795-39-3) is alight, free-flowing powder. Initially, the material is a wet slurry (within a reactor) and is then transferred to drying equipment for final processing and packaging. The above employees operate and maintain the drying equipment, collect quality samples, and also package (by gravity or by hand scooping) dry powder from the spray equipment into drums, pails, and cans.
/0
`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
sacatmipviltiinesgpmeertfhoordmeadndbyextphoesiunrdeivsicdeunaalrsiomomnointiotroerde.d,Fo.rg.,prdievsaccryibceontshiedsepreactiifoincsw,oprlkeaesre do
not include any personal identifiers such as a worker's name or social security number
with any data submitted to EPA.
These samples were collected during operationof drying equipment and packaging activities.
Past sample collection and analysis has utilized 37-mm Nucleopore filter cassettes with cither `gravimetric, inductively coupled plasma emission spectroscopy (for K+), or liquid
chromatography analysis. The current method is an OSHA Versatile Sampler (OVS) tube analyzed by liquid chromatography/mass spectrometry. Wipe sample data for the chemical does exist and has indicated significant levels ofthis material on surfaces in the production
area. The results were used for focusing decontamination and exposure control efforts.
El Area/Job
Sample
Classification| Type
Unit:
11 #of
Minimum Maximum Geometric
Samples | Concentration| Concentration| ~~ Mean
Geometric
DSetvainadtairodn
|
Chemical
Partial Shift
0.00013
40mg/m3 | 0.050 mg/m3
64.407
Process.
(Sample
mg/m3
K
Operator | Time
Range: 7-
Foie m1i2n5utes)
--
|
[Technician | P(aSratmiaplleShift
T
045 mgm3 | 0.45 mgm3
NA
NA |
Time: 70
|
minutes) |
|
4. Briefly describe the engineering controls used to minimize exposure to this chemical:
The drying and packaging activities are contained within small-room enclosures with negative pressure and filtered exhaust ventilation. Local exhaust may be present directly at the pointofpackaging.
5. Briefly list the personal protective equipment your workers regularly wear to prevent exposureofthis chemical: Employees working within the above small-room enclosures use airline respirators, chemical-protective coveralls (Tyvek), boot covers, and gloves.
Comments: (This section is available to clarify the responses given. Attach additional pages if desired.)
2"
CAS Number 1763-23-1, 20081-56-9, 70225-14-8, 2795-39-3, 29457-72-5 / 3M Company/ 4/27/2000 10
CAS Number: 1763:23-1 Company: 3M Company. Specialty Material Manufacturing Division, Cottage Grove, MN
Che Namm e ical [CAS No.
Perfluorooctane sulfonic acid
1763-23-1
`This information will assist EPA 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 activities described in question 2.
1. Estimate the number of workers potentially exposed routinely to the subject chemical for each of the exposure duration times. Ifaworker 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 numberofworkers potentially exposed.
Hours/Day
Days/Year
|
<10
10-100 100-250 >250 |
=<ps TT7
21 |
6[0]
se
>8
I
1
2. Describe the routine worker activities to which the workers in question 1 are exposed: sampling, removal of filter 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 chemicals concentration:
`The chemical formulation containing 1763-23-1 is a clear colorless liquid Solution (32-38% concentration). Employee activities include operation and `maintenanceof process equipment, product quality sampling and drumming as an intermediate or final product liquid solution containing 1763-23-1.
3. Provide industrial hygiene monitoring data, if available, with a brief describe the specific worker 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.
No data available. 4. Briefly describe the engineering controls used to minimize exposure to this
chemical: Local exhaust ventilation used at product container openings during container filling,
* CAS Number 1763-23-1, 29081-56-9, 70225-14-8, 2795-39-3, 20457-72-/5 3M Company / 4/27/2000 11 5. Briefly list the personal protective equipment your workers regularly wear to prevent exposure of this chemical: Employees wear PVC jackets and pants, neoprene gloves, and face shield and chemical splash goggles for containerization of solutions containing 1763-231. Comments: (This section is available to clarify the responses given. Attach additional pages if desired.)
CAS Number 1763-23-1, 29081-56-9, 70225-14-8, 2795-39-3, 29457-72-5/ 3M Company/ 4127/2000 12 CAS Number: 70225-14-8 Company: 3M Company, Specialty Materials Manufacturing Divisior Cottage Grove MN
sDuilcftohnaantoelamine salt of perfluorooctane 0225-14-8
`This information will assist EPA 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 activities described in question 2. 1. Estimate the number of workers potentially exposed routinely to the subject
chemical for each of the exposure duration times. Ifa worker is involved in more than one activity, enter only his/her most typical activity in the table. Don't count 2 worker more than once. The total number in the table should equal the total number of workers potentially exposed.
Hours/Day
<10
10-100DaysiYear100-250
250
<5 |
2
2
we]
CesT11
2. Describe the routine worker activities to which the workers in question 1 are exposed: sampling, removaloffilter 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 (70225-14-8) is a clear, light colored solution containing 19-23% 70225-14-8. Employee activities include operation and maintenanceofprocess equipment, product quality sampling and drumming of final liquid solution containing 7025-148.
3. Provide industrial hygiene monitoring data, if available, with a brief description of the sampling method and exposure scenario monitored, .g., describe the specific worker 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. No data available.
4. Briefly describe the engineering controls used to minimize exposure to this chemical: Local exhaust ventilation used at product container openings during packaging.
CAS Number 1763-231, 29081-56-9, 70225-14-8, 2795-39-3, 29457-72-5 / 3M Compan/y 4127/2000 13 5. Briefly list the personal protective equipment your workers regularly wear to prevent exposure of this chemical: Employees wear PVC gloves and chemical splash goggles for containerization of product Comments: (This section is available to clarify the responses given. Attach additional pages if desired.)
CAS Number 1763-23-1, 29081-56-9, 70225-14-8, 2795-39-3, 29457-72-5 / 3M Company / 4127/2000 14
CCoAtStagNeumGbreorv:e, 2M90N81-56:9 Company: 3MCompany.Specialty MaterialsManufactuDriivnisgion,
AhmemmoincailumNapmereflu_orooctane sulfonate 29081-569
"This information will assist EPA in characterizing the numberof workers potentially exposed and the magnitude, frequency, and duration of potential exposure. When providing monitoring data, ensure that data is linked with worker activities described in question 2.
1. Estimate the numberofworkers potentially exposed routinely to the subject chemical for eachof the exposure duration times. Ifaworker 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 numberof workers potentially exposed.
Hours/Day
Days/Year
<1o
10-100 100-250 250
<
TrrT
25.1
7 rr
IE]
pr]
CT
7T]
2. Describe the routine worker activities to which the workers in question 1 are exposed: sampling, removal of filter 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 formulation containing 29081-56-9 is a clear amber solution (19-23% concentration). Employee activities include transferring wet slurry to filer press, operating filer press, transferring filter cake to reactor, and drumming final liquid Solution containing 29081-56-9. The above employees also operate and maintain process equipment and collect quality samples.
3. Provide industrial hygiene monitoring data, if available, with a brief description of the sampling method and exposure scenario monitored, e.g., describe the specific worker 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.
No data available. 4. Briefly describe the engineering controls used to minimize exposure to this
chemical
Local exhaust available at the filter press, at the reactor opening and at the product container openings.
CAS Number 1763-23-1, 29081-56-9, 70225-14-8, 2795-39-3, 29457-72-5 / 3M Company / 4127/2000 15 5. Briefly list the personal protective equipment your workers regularly wear to prevent exposure of this chemical: Employees wear PVC jackets and pants, neoprene gloves, and chemical splash goggles. Half mask dust-mist respirators are used for handlingofwet filter cake. Comments: (This section is available to clarify the responses given. Attach additional pages if desired.)
"CAS Number 1763-231, 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 Company. Specialty Materials Manufacturing Division, Cottage Grove, MN
(Chemical Name Lithium perfluorooctane sulfonate
CASNo. | 9457-725 |
"This information will assist EPA in characterizing the number of workers potentially exposed and the magnitude, frequency, and durationof potential exposure. When providing monitoring data, ensure that data is linked with worker activities described in question 2.
1. Estimate the number of workers potentially exposed routinely to the subject chemical for eachof 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
Days/Year
<10
10-100 100-250 250
[es TTTT 1
[Cs T[ T 1] C 1 T 1 2. Describe the routine worker activities to which the workers in question 1 are exposed: sampling, removaloffilter cake, 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, if in a mixture, the chemicals concentration: The chemical formulation containing 29457-72-5 is a clear amber solution (24-26% concentration). Employee activities include operation and maintenance of process equipment, product quality sampling and drumming of final liquid solution containing 29457.72-5. 3. Provide industrial hygiene monitoring data, if available, with a brief description of the sampling method and exposure scenario monitored, e.g., describe the specific worker 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. No data available. 4. Briefly describe the engineering controls used to minimize exposure to this chemical: Local exhaust ventilation used at product container openings during packaging.
* CAS Number 1763-23-1, 29081-56-9, 70225-14-8, 2795-39-3, 29457-72-5 / 3M Company / 4127/2000 17 5. Briefly list the personal protective equipment your workers regularly wear to prevent exposure of this chemical: Employees wear PVC jackets, neoprene gloves, and chemical splash goggles for containerization of product. Comments: (This section is available to clarify the responses given. Attach additional pages if desired.)
CAS Number 1763-23-1, 29081-56-9, 70225-14-8, 2795-39-3, 29457-72-5 / 3M Company / 4127/2000 18
DCeAcaStuNru,mbAler: 2795-39-3 Company:3MCompany.SpecialtyMaterialsManufacturingDivision,
Potassium perfluorooctane sulfonate
CAS No. 2795393
`This information will assist EPA in characterizing the number ofworkers potentially exposed and the magnitude, frequency, and duration of potential exposure. When providing monitoring data, ensure that data is linked with worker activities described in question 2.
1. Estimate the numberof workers potentially exposed routinely to the subject chemical for each of the exposure duration times. Ifaworker 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 numberofworkers potentially exposed.
Hours/Day
Days/Year
<1
10-100 100-250
2250
<5 | T ]
2|
ee
es
7
>|
2. Describe the routine worker activities to which the workers in question 1 are exposed: sampling, removaloffilter cake, and drumming of liquids, manufacture an article, etc. For these activities, describe the physical state ofthe subject chemical (liquid, gas, particulate, or aerosol, etc.) and, if in a mixture, the chemical's concentration:
The chemical (2795-39-3) is in an aqueous solution (25%). Employees operate and maintain the production equipment and collect quality samples. Material is produced, stored, and `metered into product container in a closed system
3. Provide industrial hygiene monitoring data, if available, with a brief description of the sampling method and exposure scenario monitored, e.g., describe the specific worker 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.
No data available. 4. Briefly describe the engineering controls used to minimize exposure to this chemical
Enclosed process.
20
CAS Number 1763-23-1, 29081-56-9, 70225-14-8, 2795-39-3, 29457-72-5 / 3M Company / 4127/2000 19 5. Briefly list the personal protective equipment your workers regularly wear to prevent exposure of this chemical: Employees use safety glasses and neoprene gloves. Comments: (This section is available to clarify the responses given. Attach additional pagesifdesired.)
CAS Number 1763-23-1, 29081-56-9, 70225-14-8, 2795-39-3, 29457-72-5 / 3M Company / 4127/2000 20
CAS Number: 1763:23-1, 29081-56-9, 20457-72-5,70225-14-8 Company: 3DMe=caturA,L
CAS No.
Perfluorooctane sulfonic acid
1763-231
Apmmeonriufm luorosoulfconatteane 9081-56-9
ithium perfluorooctane sulfonate
Diethanolamine salt of perfluorooctane 0225-148
Sulfonate
Noneofthese materials are manufactured at 3M-Decatur.
22
CAS Number 1763-23-1, 29081-56-9, 70225-14-8, 2795-39-3, 29457-72-5/ 3M Company / 4/27/2000 21
VIL. CHEMICAL END USES
A. END USE AS AN INTERMEDIATE CONSUMED TO MAKE OTHER CHEMICALS
AL On-Site Use as a Intermediate:
CAS #1763:23-1
Perfluorooctane sulfonic acid is used as an intermediate while the salts are not used as intermediates. The perfluorooctane sulfonate salts are only used as finished products.
Product chemical class or product chemical (Include CAS number if appropriate)
% of total* volumeof subject chemical manufactured
or imported
1. Fluorochemical trivalent chromium
1s
compound
2. Perfluorooctane sulfonate salt
15
*As reported in Part III, p.2
A2 OffSite Use as an Intermediate:
Product chemical class or product chemical (Include CAS number if appropriate)
% of total volumeof subject chemical manufactured
or imported*
1. Not Applicable
Not Applicable
*As reported in Part III, p.2
CAS Number 1763-231, 29081-56-9, 70225148, 2795-39-3, 29457-72-5 / 3M Company / 42772000 22
B. END USES OTHER THAN AS A CONSUMED INTERMEDIATE "The following two tables present a summaryof the information contained in VIL regarding uses of perfluorooctane sulfonic acid and its sal forms. Table 1 details the end applications in which a particular CAS Number is used. For cach CAS Number, the % used in cach application totals to 100%. Table 1. CAS Number by Application
2195:393 i 2| 9457725
0225-148
21.. MFiisltm sfuoprpmreerssiannFtirfeorFiacgihdtibnagthFsoainmmsetal plating factories
3. Surfactant in acid etching processes for productionof circuit
1. bSourafradcstant in alkaline cleaners
32.. MEimsutlssiufpeprreisnsacnotmmfeorcaiciadlbfaltohors pionlmiesthal plating factories
| 4. Surfactant in acid etching processes for productionofcircuit
5. bReogairsdtsered active ingredient for insect control. Used in
formulations used in bait traps
21.. MEimsutlssiufpiprreisnsacnotmmfeorrcaiciadl bfaltohors pionlmiesthaels plating factories |
3. Surfactant in acid etching processes for productionof circuit |
boards
|
boards
"Table 2 details the multiple CAS Numbers which may be used in any one application. Table 2. Application by CAS Number
2795.39-3 2700425275.-7124:.58 220149557..3792-:35 7209202851154689 297405272.5721:458 |
1763-231
`Mist suppressant for acid baths in metal plating factories bSuorafradcstant in acid etching processes for productionofcircuit
Surfactant in alkaline cleaners formulations used in bit traps
24
CAS Number 1763-23-1, 29081-56-9, 70225-14-8, 2795-39-3, 29457-72-5 / 3M Company / 4/27/2000 23
CAS Number 2795-39-3, Potassium perfluorooctane sulfonate
Use Number 1 of 3 Description of Chemical End Use: Chemical used as film former which is blended into fire fighting foams. These products are designed for primary use by fire fighting professionals.
Percentoftotal manufactured or impored Volume going to this use: 92+ 2
Check all physical formsofthe chemical during this use:
Ifused in a mixture check appropriate box To indicate weight fraction. Average Values are acceptable: X_ <1% (600-1200 ppm) TT o1a0%
30.60% 60-90% 90%
Aerosol Dry Powder Pellets or large crystals "Water or solvent -wet solid --_ Gasorvapor X_ Liquid solution Other (Explain)
Use Number 2 of 3 Description of Chemical End Use: Metal plating factories use this chemical to suppress oxidizing acid mist in order to protect their workers health.
Percentof total manufactured or imported Volume going to this use: 6+ 2
Check all physical formsofthe chemical during this use:
Ifused in a mixture check appropriate box To indicate Weight fraction. Average Values are acceptable: X_ <1% (1000 ppm)
3103-06%0% 60-90% 0%
__ Aerosol Dry Powder Pellets or large crystals
_ Wateror solvent - wet solid --_ Gasorvapor X_ Liquid solution
Other (Explain)
CAS Number 1763-231, 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: Electronic factories add this chemical as a surfactant to improve the wetting of strong acids used in the etchingofprecise pattems in a silicon water or a printed circuit board
Percentoftotal manufactured or imported Volume going to this use: 2+ 0.5
Check all physical forms of the chemical during this use:
Ifused in a mixture check appropriate box To indicate Weight fraction. Average Values are acceptable: X_ <1%(<1000 ppm)
1% 3060% 60.90% 00%
__ Aerosol Dry Powder Pellets or large crystals
"--_WatGaesrorvoarpsoolrvent - wet solid TX Liquid solution ~~ Other (Explain)
CAS Number 1763-23-1, 29081-56-9, 70225-14-8, 2795-39-3, 29457-72-5 / 3M Company / 4127/2000 25
CAS Number 29457-72-5, Lithium perfluorooctane sulfonate
Use Number 1 of 5 Description of Chemical End Use: Chemical formulators use this chemical as a surfactant to improve the wettingofwater-based products that are sold as alkaline cleaners. These cleaners are then diluted and sold to the consumer or contract cleaner.
Percentoftotal manufactured or imported Volume going to this use: 23.5% 0.5
Check all physical formsofthe chemical during this use:
Ifused in a mixture check appropriate box To indicate Weight fraction. Average Values are acceptable: X_ <1% (30 ppm)
130%
30-60% 60-90% 0%
__ Aerosol Dry Powder Pellets or large crystals Water or solvent - wet solid
__ Gasorvapor
_X_ Liquid solution
7 Other (Explain)
Use Number2 of Description of Chemical End Use: Metal plating factories use this chemical as a surfactant to suppress oxidizing acid mist in order to protect their workers" health.
Percentoftotal manufactured or imported Volume going to this use: 1% 1
Check all physical formsofthe chemical during this use:
Ifused in a mixture check appropriate box To indicate Weight fraction. Average Values are acceptable: X_ <1% (30-50 ppm)
10% TT 3060%
60-90% 0%
Aerosol Dry Powder Pellets or large crystals _ Waterorsolvent - wet solid _ Gasorvapor TX. 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 26
Use Number3 of 5 Description of Chemical End Use: Electronics factories add this chemical as a surfactant to improve the wettingofsrong acids used in the etchingofprecise pattems in a silicon water or a printed circuit board.
Percentoftotal manufactured or imported Volume going to this use: 1+ 1
Check all physical formsofthe chemical during this use:
Ifused in a mixture check appropriate box To indicate Weight fraction. Average Values are acceptable: X_ <1% (30-50 ppm) TT o1a0%
30.60% 60-90% o0%
__ Aerosol __ Dry Powder
Pellets or large crystals _ Wateror solvent - wet solid --_ Gasorvapor X_ Liquid solution 7 Other (Explain)
Use Number 4 of 5 Description of Chemical End Use: Chemical formulators use this chemical as a surfactant to improve the wetting ofwater-based products that are sold as commercial floor polishes.
Percentoftotal manufactured or imported Volume going to this use: 235+ 0.5
Check all physical formsofthe chemical during this use:
Ifused in a mixture check appropriate box To indicate Weight fraction. Average Values are acceptable: LX. <1%(15ppm)
130% 30-60% 60-90% -- >o0%
__ Aerosol Dry Powder Pellets or large crystals
"Water or solvent - wet solid --_ Gasorvapor X_ Liquid solution
Other (Explain)
`CAS Number 1763-23-1, 20081-56-9, 70225-14-8, 2795-39-3, 29457-72-5 / 3M Company / 4/27/2000 27
Use Number 5 of 5 Description of Chemical End Use: Chemical formulators use this chemical as a registered active ingredient for insect control. Tt is blended with bait that i attractive to insects and placed in bait stations. Either commercial facilites or consumers can use these bait stations.
Percentoftotal manufactured or imported Volume going to this use: 53+ 0.5
Check all physical formsofthe chemical during this use:
Ifused in a mixture check appropriate box To indicate Weight fraction. Average Values are acceptable: XO <a%
1% 30.60% 60-90% 90%
__ Aerosol Dry Powder
"Pellets or large crystals __ Wateror solvent wet solid __ Gasorvapor X_ Liquid solution ~~ Other (Explain)
CAS Number 1763-23-1, 29081-56-9, 70225-14-8, 2795-39-3, 29457-72-/5 3M Company/ 4127/2000 28
CAS Number 29081-56-9, Ammonium perfluorooctane sulfonate
Use Number 1 of 1 Description of Chemical End Use: Electronics factories add this chemical as a surfactant to improve the setting of strong acids used in the etchingofprecise pattems in a silicon wafer or a printed circuit board.
Percent of total manufactured or imported Volume going to this use: 100
Check all physical formsof the chemical during this use:
Ifused in a mixture check appropriate box To indicate Weight fraction. Average Values are acceptable: LX <1%(~100 ppm)
130% 3060% 090% 90%
Aerosol Dry Powder Pellets or large crystals Water or solvent ~ wet solid __ Gasorvapor XC Liquid solution Other (Explain)
20
CAS Number 1763-231, 29081-56-9, 70225-14-8, 2795-39-3, 29457-72-5 / 3M Company / 4127/2000 29
CAS Number 70225-14-8, Diethanol amine perfluorooctane sulfonate
Use Number 1 of 3 Description of Chemical End Use: Chemical formulators use this chemical as a surfactant to improve the emulsificationof materials used in commercial and consumer floor polishes.
Percent of total manufactured or imported Volume going to this use: 35= 2
Check all physical forms of the chemical during this use:
Ifused in a mixture check appropriate box To indicate Weight fraction. Average Values are acceptable: X_ <1%(~15 ppm) TT 130%
30-60% 6090% 00%
__ Aerosol _ DryPowder "Pellets or large crystals
Water or solvent - wet solid _ Gasor vapor TX Liquid solution TT Other (Explain)
Use Numbe2r of 3 Description of Chemical End Use:
Metal plating factories usethis chemical to suppress
oxidizing acid mist in order to protect their workers" health.
Percent of total manufactured or imported `Volume going to this use: 48.5 3
Check all physical formsofthe chemical during this use:
Ifused in a mixture check appropriate box TVaoluinedsicaarteeaWcceeipgthabtlef:raction. Average X_ <1% (~100-1000 ppm)
130% 3060% 60-90% 90%
Aerosol Dry Powder Pellets or large crystals Water or solvent ~ wet solid --_ Gasorvapor TX Liquid solution Other (Explain)
"CAS Number 1763-23-1, 29081-56-9, 70225-14-8, 2795-39-3, 20457-72-5 / 3M Company / 4127/2000 30
Use Number 3 of 3 Descriptionof Chemical End Use: Electronic factories add this chemical as a surfactant to improve the wetting of strong acids used in the etchingofprecise patterns in a silicon water or a printed circuit board.
Percentoftotal manufactured or imported Volume going to this use: 16.5 2
Check all physical forms of the chemical during this use:
Ifused in a mixture check appropriate box To indicate Weight fraction. Average Values are acceptable: X_ <1%(~100-1000 ppm)
1% 3060% 60-90% 90%
Aerosol __ DryPowder "Pellets or large crystals
Water or solvent - wet solid _ Gasorvapor X_ Liquid solution
Other (Explain)
32
