# Marine Spill Response Corporation — Hazardous Materials Safety Interpretation

- **operation:** document
- **citation:** 09-0271
- **title:** Marine Spill Response Corporation — Hazardous Materials Safety Interpretation
- **source type:** guidance
- **agency:** Pipeline and Hazardous Materials Safety Administration
- **status:** guidance
- **official:** true
- **published on:** 2010-03-30
- **effective on:** Not available
- **summary:** 09-0271 response to Marine Spill Response Corporation concerning 173.22.
- **machine formats:** - **json:** https://regulus.evalyn.ai/document/phmsa-interpretation-09-0271.json
- **markdown:** https://regulus.evalyn.ai/document/phmsa-interpretation-09-0271.md
- **app url:** https://regulus.evalyn.ai/document/phmsa-interpretation-09-0271
- **source url:** https://www.phmsa.dot.gov/sites/phmsa.dot.gov/files/legacy/interpretations/Interpretations/2009/090271.pdf
**body:**

<<<PAGE 1>>>

U.S. Department of Transportation Pipeline and Hazardous Materials
Safety Administration
MAR 30 (OiD
1200 New Jersey Avenue, SE
Washington, DC 20590
Mr. Mike Sample
Marine Spill Response Corporation
220 Spring Street #500
Herndon, VA 20170
Ref. No. 09-0271
Dear Mr. Sample:
This responds to your November 20, 2009 request for clarification concerning the applicability of
the Hazardous Materials Regulations (HMR; 49 CFR Parts 171-185) to your products.
Specifically, you request confirmation that your dispersing products are not subject to the HMR.
According to your letter, your company transports chemical dispersants, Coreexit 9527 and
Coreexit 9500, to use in fighting oil spills. The material safety data sheet (MSDS) for these
chemical dispersants indicate that these materials are not regulated under the HMR. The products
are transported over the road in ISO tanks. It is your understanding that since they are being used
to transport non-hazardous materials, the tanks should riot be subject to the periodic inspection
requirements applicable to tanks used for hazardous materials.
Section 173.22 requires a shipper to properly class and describe a hazardous material for
transportation in commerce. This Office does not perform that function. However, based on the
information provided in your letter and the MSDS, it is the opinion ofthis Office that your
dispersing products do not meet the definition of a hazardous material and, they are not subject to
regulation under the HMR. Packagings used to transport non-hazardous materials are not
required to meet HMR requirements. Note, however, that if the portable tank or other packaging
used to transport the chemical dispersants is marked to indicate that it meets HMR requirements,
the packaging must be maintained in accordance with the HMR or the marking must be removed,
covered, or obliterated.
I hope this answers your inquiry. If you need further assistance, please contact this Office.
Sincerty, A
Ul"'~
Charles E. Betts
Chief, Standards Development
~e ofHazardous Materials Standards

<<<PAGE 2>>>

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10 I
Drakeford, Carolyn (PHMSA) c? 11"2.·2...62..
From: INFOCNTR (PHMSA) <;h:pp') f) J -Pa..per~
Sent: Friday, November 20, 2009 4:28 PM
To: Drakeford, Carolyn (PHMSA) O~-Ol-ll
Subject: FW: Request for Confirming Letter
Page 1 ofl
From: Mike Sample [mailto:sample@msrc,org]
Sent: Friday, November 20,20093:28 PM
To: INFOCNTR (PHMSA)
Subject: Request for Confirming Letter
I am writing to request a letter to confirm a recent discussion between my company, the Marine Spill Response
Corporation (MSRC) and a DOT representative in DC.
MSRC is an oil spill response company. One of the tools we use to fight oil spills are chemical dispersants which, according to their MSDS, are a
NON-hazardous material.
The reason for the requested letter is so that if, when responding in an emergency situation, one of our vehicles carrying dispersants is stopped
at an inspection station or weigh station, and an inspector questions our transportation, we have official documentation that will allow us to
answer the inspector's questions (and get us quickly back on the road so we can respond to the oil spill).
The products being transported are Coreexit 9527 and Corexit 9500, manufactured by Nalco. The MSDS for these products indicate that for:
Land Transport: "PRODUCT IS NOT REGULATED DURING TRANSPORTATION"
Air Transport (ICAO/IATA): "PRODUCT IS NOT REGULATED DURING TRANSPORTATION"
Marine Transport (IMDG/IMO): "PRODUCT IS NOT REGULATED DURING TRANSPORTATION"
These dispersants are transported over the road in ISO tanks. Since they are being used to transport NON-hazardous material, the tanks should
not be subject to the periodic inspection requirements applicable to tanks used for hazardous materials.
Again, our concern is that, should the MSRC vehicle be stopped at an inspection station or weigh station, and an inspector questions our
transportation (specifically whether our tanks have been inspected), we have official documentation that will allow us to answer the inspector's
questions and quickly get back on the road.
We respectfully request a letter from DOT that we can place in our vehicles that will allow us to answer such
inspectors' questions. This letter would acknowledge that, so long as MSRC was transporting Coreexit 9527 and
Corexit 9500, the transport was not regulated, and a tank inspection was not required for the MSRC tanks
containing these products. We would attach a copy of the MSDS to your letter, as further support for the
inspector.
Please provide this letter to; Marine Spill Response Corporation, 220 Spring Street 11500, Herndon, VA 20170
If you have any questions regarding our request, please contact Mike Sample at 703-326-5620 or at §illl1pl~@J!!?.rj:.org.
Thank you very much for your assistance.
11123/2009

<<<PAGE 3>>>

SAFETY DATA SHEET
MNALCO
PRODUCT
COREXIT(R) EC9527A
EMERGENCY TELEPHONE NUMBER(S)
(800) 424-9300 (24 Hours) CHEMTREC
11. ICHEMICAL PRODUCT AND COMPANY IDENTIFICA nON
PRODUCT NAME: COREXIT(R) EC9527A
APPLICATION: OIL SPILL DISPERSANT
COMPANY IDENTIFICATION: Nalco Company
1601 W. Diehl Road
Naperville, Illinois
60563~1198
EMERGENCY TELEPHONE NUMBER(S) : (800) 424-9300 (24 Hours) CHEMTREC
NFPA 704M/HMIS RATING
HEALTH: 2/2 FLAMMABILITY: 1/1 INSTABILITY:
o=Insignificant 1;;:; Slight 2 = Moderate 3 =High 4 =Extreme
12. ICOMPOSlnONIINFORMATION ON INGREDIENTS
0/0 OTHER:
Our hazard evaluation has identified the following chemical substance(s) as hazardous. Consult Section 15 for the.
nature of the hazard(s).
Hazardous Substance(s) CAS NO % (w/w)
2-Butoxyethanol 111-7~2 30.0 - 60.0
Organic sulfonic acid salt Proprietary 10:0 - 30.0
Propylene Glycol 57~55~ 1.0 - 5.0
13. IHAZARDS IDENTIFICATION
"'EMERGENCY OVERVlEW**
WARNING
Eye and skin irritant. Repeated or excessive exposure to butoxyethanol may cause injury to red blood cells
(hemolysis), kidney or the liver. Harmful by inhalation, in contact with skin and if swallowed.
Do not get in eyes, on skin. on clothing. Do not take internally. Use with adequate ventilation. Wear suitable
protective clothing. Keep container tightly closed. Flush affected area with water. Keep away from heat. Keep
away from sources of ignition - No smoking.
May evolve oxides of carbon {COx} under fire conditions..
PRIMARY ROUTES OF EXPOSURE:
Eye, Skin
HUMAN HEALTH HAZARDS - ACUTE:
EYE CONTACT:
Cen cause moderate irritation.
Nalco Company 1601 W. Diehl Road· Naperville, Illinois 60563-1198 • {630)305-1000
For additional copies of an MSDS visit www.naico.com and request access
1/10

<<<PAGE 4>>>

SAFETY DATA SHEET
NNALCO
PRODUCT
COREXIT(R) EC9527A
EMERGENCY TELEPHONE NUMBER(S)
(800) 424-9300 (24 Hours) CHEMTREC
SKIN CONTACT:
Can cause moderate irritation. Harmful if absorbed through skin.
INGESTION:
gastro-intestinal tract.
May be harmful jf swallowed. May cause liver and kidney effects and/or damage. There may be irritation to the
INHALATION:
Harmful by inhalation. Repeated or prolonged exposure may irritate the respiratory tract.
SYMPTOMS OF EXPOSURE:
Acute:
Chronic:
liver.
Excessive exposure may cause central nervous system effects, nausea, vomiting, anesthetic or narcotic effects.
Repeated or excessive exposure to butoxyethanol may cause injury to red blood cells (hemolysis), kidney or the
AGGRAVATION OF EXISTING CONDITIONS:
Skin contact may aggravate an existing dermatitis condition.
HUMAN HEALTH HAZARDS ~ CHRONIC:
Contains ethylene glycol monobutyl ether (butoxyethanol). Prolonged and/or repeated exposure through inhalation
or extensive skin contact with EGBE may result in damage to the blood and kidneys.
14. IFIRST AID MEASURES
EYE CONTACT:
Flush affected area with water. Get medical attention.
SKIN CONTACT:
Flush affected area with water. Get mecUcal attention.
INGESTION:
attention.
Do not induce vomiting without medical advice. If conscious. washout mouth and give water to drink. Get medical
INHALATION:
Remove to fresh air, treat symptomatically. If symptoms develop. seek medical advice.
NOTE TO PHYSICIAN :
Based on the individual reactions of the patient, the phYSician's judgement should be used to control symptoms and
clinical condition.
15. IFIRE FIGHTING MEASURES
FLASH POINT: 163 OF 172.7 °C (TCC)
This product does not sustain combustion per the method outlined in 49 CFR Appendix H.
Nalco Company 1601 W. Diehl Road' Naperville. Illinois 60563-1198 • (630)305-1000
For additional copies of an MSDS visit www.nalco.com and request access
2/10

<<<PAGE 5>>>

SAFETY DATA SHEET
NNALCO
PRODUCT
COREXIT(R) EC9527A
EMERGENCV TELEPHONE NUMBER(S)
(800) 424-9300 (24 Hours) CHEMTREC
EXTINGUISHING MEDIA:
This product would not be expected to burn unless all the water is boiled away. The remaining organics may be
ignitable. Use extinguishing media appropriate for surrounding fire.
FIRE AND EXPLOSION HAZARD:
May evolve oxides of carbon (COx) under fire conditions.
SPECIAL PROTECTIVE EQUIPMENT FOR FIRE FIGHTING:
In case of fire, wear a full face positive-pressure self contained breathing apparatus and protective suit.
16. IACCIDENTAL RELEASE MEASURES
PERSONAL PRECAUTIONS:
Restrict access to area as appropriate until clean-up operations are complete. Stop or reduce any leakS if it is safe
to do so. Do not touch spilled material. Ventilate spill area if possible. Use personal protective equipment
recommended in Section 8 (Exposure Controls/Personal Protection).
METHODS FOR CLEANING UP :
SMALL SPILLS: Soak up spill with absorbent material. Place residues in a suitable, covered, properly labeled
container. Wash affected area. LARGE SPILLS: Contain liquid using absorbent material, by digging trenches or by
diking. Reclaim into recovery or salvage drums or tank truck for proper disposal. Contact an approved waste hauler
for disposal of contaminated recovered material. Dispose of material in compliance with regulations indicated in
Section 13 (Disposal Considerations).
ENVIRONMENTAL PRECAUTIONS:
Do not contaminate surface water.
17. IHANDLING AND STORAGE
HANDLING:
when not in use.
Avoid eye and skin contact. Do not take internally. Ensure all containers are labeled. Keep the containers closed
STORAGE CONDITIONS:
Store the containers tightly closed.
SUITABLE CONSTRUCTION MATERIAL:
Stainless Steel 316L, Hastelloy C-276, MOPE (medium density polyethylene), Nitrile, Plexiglass, Kalrez, TFE, Alfax,
Teflon, HOPE (high density polyethylene), Neoprene, Aluminum, Polypropylene, Polyethylene, Carbon Steel C1018,
Stainless Steel 304, Compatibility with Plastic Materials can vary; we therefore recommend that'compatibility is
tested prior to use., FEP(encapsulated), Perfluoroelastomer, PVC
UNSUITABLE CONSTRUCTION MATERIAL:
Copper, Mild steel, Brass, Nylon, Buns-N, Natural rubber, Polyurethane, Hyparon, Viton, Ethylene propylene, EPDM
Nalco Company 1601 W. Diehl Road· Naperville, l.lIinois 60563-1198· (630)305-1000
For additional copies of an MSDS visit www.nalco.com and request access
3/10

<<<PAGE 6>>>

SAFETY DATA SHEET
NNALCO
PRODUCT
COREXIT(R) EC9527A
EMERGENCY TELEPHONE NUMBER{S)
(800) 424-9300 (24 Hours) CHEMTREC
Is. IEXPOSURECONTRO~ERSONALPROTECnON
OCCUPATIONAL EXPOSURE LIMITS:
Exposure guidelines have not been established for this product. Available exposure limits for the substance(s) are
shown below.
ACGIHlTLV:
Substance(s)
2-Butoxyethanol TWA: 20 ppm, 97 mg/m3
Propylene Glycol
OSHA/PEL:
Substance(s)
2-Butoxyethanol TWA: 50 ppm, 240 mglm3 (Skin)
Propylene Glycol
AIHAlWEEL:
Substance(s)
For propylene glycol, an 8 hour TWA of 10 mgJm3 (aerosol) and 50 ppm (total).
ENGINEERING MEASURES:
General ventilation is recommended.
RESPIRATORY PROTECTION:
Where concentrations in air may exceed the limits given in this section, the use of a half face filter mask or air
supplied breathing apparatus is recommended. A suitable filter material depends on the amount and type of
chemicals being handled. Consider the use of filter type: Multi-contaminant cartridge. with a Particulate pre-1ilter.
In event of emergency or planned entry into unknown concentrations a positive pressure, full-facepiece SCBA
should be used. If respiratory protection is required, institute a complete respiratory protection program including
selection, frt testing, training, maintenance and inspection.
HAND PROTECTION:
Neoprene gloves, Nitrile gloves, Butyl gloves, PVC gloves
SKIN PROTECTION:
Wear standard protective clothing.
EYE PROTECTION:
Wear chemical splash goggles.
HYGIENE RECOMMENDATIONS:
Keep an eye wash fountain available. Keep a safety shower available. Ifclothing is contaminated, remove clothing
and thoroughly wash the affected area. Launder contaminated clothing before reuse.
HUMAN EXPOSURE CHARACTERIZATION:
Based on our recommended product application and personal protective eqUipment, the potential human exposure
is: Low
Malco Company 1601 W. Diehl Road • Naperville, Illinois 60563-1198 • (630}305-1000
For additional copies of an MSDS visit www.nalco.com and request access
4/10

<<<PAGE 7>>>

SAFETY DATA SHEET
NNALCO
PRODUCT
COREXIT(R} EC9527A
EMERGENCY TELEPHONE NUMBER(S)
(800) 424-9300 (24 Hours) CHEMTREC
19. IPHYSICAL AND CHEMICAL PROPERTIES
PHYSICAL STATE Liquid
APPEARANCE Clear Amber
ODOR Mild
SPECIFIC GRAVITY 0.98 M 1.02
DENSITY 8.2 - 8.5 lblgal
SOLUBILITY IN WATER Complete
pH (100 %) 6.1
VISCOSITY 160cst @ 32°F/O°C
POUR POINT ASTM D-97 -66.9 OF I -55°C
POUR POINT < -40 of I < -40 °C
BOILING POINT 340 OF 1171 °C
VAPOR PRESSURE < 5 mm Hg @ 100 OF 138°C Same as water
EVAPORATION RATE 0.1
Note: These physical properties are typical values for this product and are subject to change.
110. ISTABILITY AND REACTIVITY
STABILITY :
stable under normal conditions.
HAZARDOUS POLYMERIZATION:
Hazardous polymerization will not occur.
CONDITIONS TO AVOID:
Extremes of temperature
MATERIALS TO AVOID :
Contact with strong oxidizers (e.g. chlorine, peroxides, chromates, nitric acid, perchlorate, concentrated oxygen.
permanganate) may generate heat, fires, explosions and/or toxic vapors.
HAZARDOUS DECOMPOSITION PRODUCTS:
Under fire conditions: Oxides of carbon
111. ITOXICOLOGICAL INFORMATION
No toxicity studies have been conducted on this product
SENSITIZATION:
This product is not expected to be a sensitizer.
Nalco Company 1601 W. Diehl Road· NapeNille, Illinois 60563-1198· (630)30~1000
For additional copies of an MSDS visit www.naloo.oom and request access
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<<<PAGE 8>>>

SAFETY DATA SHEET
-NALCO
PRODUCT
COREXIT(R) EC9527 A
(800) 424-9300 (24 Hour.) CHEMTREC
CARCINOGENICITY :
None of the substances in this product are listed as carcinogens by the International Agency for Research on
Cancer (IARC), the National Toxicology Program (NTP) or the American Conference of Govemmentallndustrial
Hygienists (ACGIH).
HUMAN HAZARD CHARACTERIZATION:
Based on our hazard characterization, the potential human hazard Is: High
112. IECOLOGICAL INFORMATION
ECOTOXICOLOGICAL EFFECTS;
No toxicity studies have been conducted on this product.
MOBII.lTY :
The environmental fate was estimated using a level III fugacity model embedded in the EPI (estimation program
interface) Suite TM. provided by the US EPA. The model assumes a steady state condition between the total input
and output. The level III model does not require equilibrium between the defined media. The information provided is
intended to give the user a general estimate of the environmental fate of this product under the defined conditions of
the models.
If released Into the environment this material is expected to distribute to the air, water and soiVsediment in the
approximate respective percentages;
Air Water Soil/Sediment
<5% 10-30% 70-90%
The portion in water is expected to be soluble or dispersible.
BIOACCUMULATION POTENTIAL
Component substances have a low potential to bioconcentrate.
ENVIRONMENTAL HAZARD AND EXPOSURE CHARACTERIZATION
Based on our hazard char~cterization, the potential environmental hazard is: Moderate
Based on our recommended product application and the producfs characteristics, the potential environmental
exposure is: Low
If released into the environment, see CERCLAISUPERFUNO in Section 15.
113. IDISPOSAL CONSIDERATIONS
If this product becomes a waste, it is not a hazardous waste as defined by the Resource Conservation and Recovery
Act (RCRA) 40 CFR 261, since it does not have the characteristics of Subpart C, nor is it listed under Subpart D.
Nalco Company 1601 W. Diehl Road· Naperville, Illinois 60563-1198 • (630)305-1000
For additional copies of an MSDS visit www.nalco.com and request access
6/10

<<<PAGE 9>>>

SAFETY DATA SHEET
NNALCO
PRODUCT
COREXIT(R) EC9527 A
EMERGENCY TELEPHONE NUMBER(S)
(BOO) 424-9300 (24 Hours) CHEMTREC
As a non-haZardous waste, it is not subject to federal regulation. Consult state or local regulation for any additional
handling, treatment or disposal requirements. For disposal, contact a properly licensed waste treatment, storage,
disposal or recycling facility.
114. ITRANSPORT INFORMATION
The information in this section is for reference only and should not take the place of a shipping paper (bill of lading)
specific to an order. Please note that the proper Shipping Name I Hazard Class may vary by packaging, properties,
and mode of transportation. Typical Proper Shipping Names for this product are as follows.
LAND TRANSPORT:
Proper Shipping Name: PRODUCT IS NOT REGULATED DURING
TRANSPORTATION
AIR TRANSPORT (ICAO/IATA) :
Proper Shipping Name: PRODUCT IS NOT REGULATED DURING
TRANSPORTATION
MARINE TRANSPORT (IMDGIIMO) :
Proper Shipping Name: PRODUCT IS NOT REGULATED DURING
TRANSPORTATION
115. IREGULATORY INFORMA'nON
This section contains additional information that may have relevance to regulatory compliance. The information in
this section is for reference only. It is not exhaustive, and should not be relied upon to take the place of an
individualized compliance or hazard assessment. Nalco accepts no liability for the use of this information.
NATIONAL REGULATIONS, USA:
OSHA HAZARD COMMUNICATION RULE, 29 CFR 1910.1200:
Based on our hazard evaluation, none of the substances in this product are hazardous.
CERCLAISUPERFUND, 40 CFR 117, 302:
Notification of spills of this product is not required.
SARAISUPERFUNDAMENDMENTS AND REAUTHORIZATION ACT OF 1986 (TITLE III)- SECTIONS 302,311,
312, AND 313 :
SECTION 302 - EXTREMELY HAZARDOUS SUBSTANCES (40 CFR 355):
This product does not contain substances listed in Appendix A and B as an Extremely Hazardous Substance.
Nalco Company 1601 W. Diehl Road· Naperville, Illinois 60563-1198· (630}305-1 000
For additional copies of an MSDS visit www.nalco.com and request access
7/10

<<<PAGE 10>>>

SAFETY DATA SHEET
MNALCO
PRODUCT
COREXIT(R) EC9527 A
EMERGENCY TELEPHONE NUMBeR(S)
(800) 424-9300 (24 Hours) CHEMTREC
SECTIONS 311 AND 312 ~ MATERIAL SAFETY DATA SHEET REQUIREMENTS (40 CFR 370):
Our hazard evaluation has found this product to be hazardous. The product should be reported under the following
indicated EPA hazard categories:
x Immediate (Acute) Health Hazard
X Delayed (Chronic) Health Hazard
X Fire Hazard
Sudden Release of Pressure Hazard
Reactive Hazard
Under SARA 311 and 312, the EPA has established threshold quantities for the reporting of hazardous chemicals.
The current thresholds are: 500 pounds or the threshold planning quantity (TPQ), whiche'lSr is lower, for extremely
hazardous substances and 10,000 pounds for all other hazardous chemicals.
SECTION 313 - LIST OF TOXIC CHEMICALS (40 CFR 372):
This product contains the following substance(s), (with CAS "# and % range) which appear(s) on the List of Toxic
Chemicals
Hazardous Substance(s) CAS NO % (w/w)
Glycol Ethers 30-60
TOXIC SUBSTANCES CONTROL ACT (TSCA) :
The substances in this preparation are included on or exempted from the TSCA 8(b) Inventory (40 CFR 710)
FEDERAL WATER POLLUTION CONTROL ACT, CLEAN WATER ACT, 40 CFR 401.151 formerly Sec. 307, 40
CFR 116.41 fonnerly Sec. 311 :
None of the substances are specifically listed in the regulation.
CLEAN AIR ACT, Sec. 112 (40 CFR 61, Hazardous Air Pollutants). Sec. 602 (40 CFR 82, Class I and II Ozone
Depleting Substances):
None of the substances are specifically listed in the regulation.
CALIFORNIA PROPOSITION 65: ,
This product does not contain substances which require warning under Califomia Proposition 65.
MICHIGAN CRITICAL MATERIALS:
None of the substances are specifically listed in the regulation.
STATE RIGHT TO KNOW LAWS:
The following substances are disclosed for compliance with State Right to Know Laws:
2-Butoxyethanol
Propylene Glycol
NATIONAL REGULATIONS, CANADA:
Nalco Company 1601 W. Diehl Road • Naperville, Illinois 605~1198· (630)305-1000
For additional copies of an MSDS visit www.naloo.oom and request access
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<<<PAGE 11>>>

SAFETY DATA SHEET
NNALCO
PRODUCT
COREXIT(R) EC9527A
EMERGENCY TELEPHONE NUMBER(S)
(SOO) 424-9300 (24 Hours) CHEMTREC
WORKPLACE HAZARDOUS MATERIALS INFORMATION SYSTEM (WHMIS):
This product has been classified in accordance with the hazard criteria of the Controlled Products Regulations
(CPR) and the MSDS contains all the information required by the CPR.
WHMIS CLASSIFICATION:
D2B - Materials Causing Other Toxic Effects - Toxic Material
CANADIAN ENVIRONMENTAL PROTECTION ACT (CEPA):
The substances in this preparation are listed on the Domestic Substances List (DSL), are exempt, or have been
reported in accordance with the New Substances Notification Regulations.
AUSTRALIA
(NICNAS).
All substances in this product comply with the National Industrial Chemicals Notification & Assessment Scheme
CHINA
All substances in this product comply with the Chemical Control Law and are listed on the Inventory of Existing
Chemical Substances China (lECSC).
EUROPE
The substance(s) in this preparation are included in or exempted from the EINECS or ELINCS inventories
JAPAN
All substances in this product comply with the Law Regulating the Manufacture and Importation Of Chemical
Substances and are listed on the Ministry of International Trade & industry List (MITI).
KOREA
All substances in this product comply with the Toxic Chemical Control law (TCCL) and are listed on the Existing
Chemicals List (ECl)
PHILIPPINES
All substances in this product comply with the Republic Act 6969 (RA 6969) and are listed on the Philippines
Inventory of Chemicals & Chemical Substances (PICCS).
116. IO"rHER INFORMATION
Due to our commitment to Product Stewardship. we have evaluated the human and environmental hazards and
exPosures of this product Based on our recommended use of this product, we have characterized the product's
general risk ..This information should provide assistance for your own risk management practices. VVe have
evaluated our product's risk as follows:
.. The human risk is: low
* The enVironmental risk is: Low
Any use inconsistent with our recommendations may affect the risk characterization. OUr sales representative will
assist you to determine if your product application is consistent with our recommendations. Together we can
implement an appropriate risk management process.
Nalco Company 1601 W. Diehl Road· Naperville, Illinois 60563-1198 • (630)305-1000
For additional copies of an MSDS visit www.nalco.com and request access
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<<<PAGE 12>>>

SAFETY DATA SHEET
NNALCO
PRODUCT
COREXIT(R) EC9527A
EMERGENCY TELEPHONE NUMBER(S)
(800) 424-9300 (24 Hours) CHEMTREC
This product material safety data sheet provides health and safety information. The product is to be used in
applications consistent with our product literature. Individuals handling this product should be informed of the
recommended safety precautions and should have access to this information. For any other uses, exposures should
be evaluated so that appropriate handling practices and training programs can be established to insure safe
workplace operations. Please consult your local sales representative for any further information.
REFERENCES .
Threshold Limit Values for Chemical Substances and Physical Agents and Biological Exposure Indices, American
Conference of Governmental Industrial Hygienists, OH., (AriellnsightTM'IM CD-ROM Version), Ariel Research Corp.,
Bethesda, MO.
Hazardous Substances Data Bank, National Library of Medicine, Bethesda, Maryland (TOMES CPS'IM'IM CD-ROM
Version), Micromedex, Inc., Englewood, CO.
IARC Monographs on the Evaluation of the Carcinogenic Risk of Chemicals to Man, Geneva: World Health
Organization, International Agency for Research on Cancer.
Integrated Risk Information System, U.S. Environmental Protection Agency, Washington, D.C. (TOMES CPSTMTM
CO-ROM Version), Micromedex, Inc., Englewood. CO.
Annual Report on carcinogens, National Toxicology Program. U.S. Department of Health and Human Servi::es.
Public Health Service.
Title 29 Code of Federal Regulations, Part 1910, Subpart Z, Toxic and Hazardous Substances, Occupational Safety
and Health Administration (OSHA), (Ariellnsight™TM C[}'ROM Version). Ariel Research Corp., Bethesda, MD.
Registry of Toxic Effects of Chemical Substances, National Institute for Occupational Safety and Health, Cincinnati,
OH. (TOMES CPSTMTM CD-ROM Version), Micromedex, Inc.. Englewood, CO.
Ariel Insight™ ThI (An integrated guide to industrial chemicals covered under major regulatory and advisory
programs), North American Module. Westem European Module. Chemical Inventories Module and the Generics
Module (Ariellnsight™TM CD-ROM Version). Ariel Research Corp., Bethesda, MD.
The Teratogen Information System. University dWashington. Seattle, WA (TOMES CPSTMTM CD-ROM Version),
Micromedex, Inc., Englewood, CO.
Prepared By: Product Safety Department
Date issued: 10/15/2008
Version Number: 1.7
Nalco Company 1601 W. Diehl Road· Naperville, Illinois 60563-1198· (630)305-1000
For additional copies of an MSDS visit VIIWW.nalco.com and request access
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<<<PAGE 13>>>

SAFETY DATA SHEET
NNALCO
PRODUCT
COREXIT (R) EC9500A
EMERGENCY TELEPHONE NUMBER(S)
(800) 424-9300 (24 Hours) CHEM'rREC
11. ICHEMICAL PRODUCT ANO COMPANY IDENTIFICATION
PRODUCT NAME: COREXIT (R) EC9500A
APPLICATION: OIL SPILL DISPERSANT
COMPANY IDENTIFICATION: Nalco Company
1601 W. Diehl Road
Naperville, illinois
60563-1198
EMERGENCY TELEPHONE NUMBER(S) : (800) 424-9300 (24 Hours) CHEMTREC
NFPA 704M/HMIS RATING
HEALTH: 1/1 FLAMMABILITY: 1/1 INSTABILITY: 0 I 0 OTHER':
o:::;: Insignificant 1:::;: Slight 2 = Moderate 3 =High 4 :::;: Extreme
12. ICOMPOSITIONIINFORMATION ON INGREDIEN!S
Our hazard evaluation has identified the following chemical substance(s) as hazardous. Consult Section 15 for the
nature of the hazard(s).
Hazardous Substance(s) CAS NO % (w/w)
Distillates, petroleum, hydrotreated light 64742-47-8 10.0- 30.0
Propylene Glycol 57-55-6 1.0 - 5.0
Organic sulfonic acid salt Proprietary 10.0 - 30.0
13. IHAZARDS IDENTIFICATION
**EMERGENCY OVERVIEW'"
CAUTION
May cause irritation with prolonged contact.
Keep away from heat Keep away from sources of ignition - No smoking. Keep container tightly closed. Do not get
in eyes, on skin, on clothing. Do not take internally." Avoid breathing vapor. U~ with adequate ventilation. In case
of contact with eyes, rinse immediately with plenty ofwater and seek medical advice. After contact with skin, wash
immediately with plenty of soap and water.
Wear suitable protective clothing.
Low Fire Hazard; liquids may burn upon heating to temperatures at or above the flash point. May evolve oxides of
carbonJCOx) under fire conditions. May evolve oxides of sulfur (SOx) under fire conditions.
PRIMARY ROUTES OF EXPOSURE:
Eye, Skin
HUMAN HEALTH HAZARDS - ACUTE:
EYE CONTACT:
Can cause mild irritation.
Nalco Company 1601 W. Diehl Road· Naperville,lllinois 60563-1198· (630)305-1000
For additional copies of an MSDS visit www.nalco.com and request access
1/10

<<<PAGE 14>>>

SAFETY DATA SHEET·
NNALCO
PRODUCT
COREXIT (R) EC9500A
EMERGENCY TELEPHONE NUMBER(S)
(BOO) 424-9300 (24 Hours) CHEMTREC
SKIN CONTACT:
May cause irritation with prolonged contact.
INGESTION:
Not a likely route of exposure. May cause nausea and vomiting. Can cause chemical pneumonia if aspirated into
lungs following ingestion.
INHALATION:
Repeated or prolonged exposure may irritate the respiratory tract.
SYMPTOMS OF EXPOSURE:
Acute:
A review of available data does not identify any symptoms from exposure not previously mentioned.
Chronic:
Frequent or prolonged contact with product may defat and dry the skin, leading to discomfort and dermatitis.
AGGRAVATION OF EXISl1NG CONDITIONS:
Skin contact may aggravate an existing dennatitis condition.
14. IFIRST AID MEASURES
EYE CONTACT:
Flush affected area with water. Get medic;;!1 attention.
SKIN CONTACT:
Flush affected area with water. If symptoms develop, seek medical advice.
INGESTION:
Do not induce vomiting: contains petroleum distillates and/or aromatic solvents. If conscious, washout mouth and
give water to drink. Get medical attention.
INHALATION:
Remove to fresh air, treat symptomatically. Get medical attention.
NOTE TO PHYSICIAN:
Based on the individual reactions of the patient, the physician's judgement should be used to control symptoms and
clinical condition.
Is. IFIRE FIGHTING MEASLIRES
FLASH POINT: 181.4 OF 183 °C (PMCC)
This product does not sustain combustion per the method outlined in 49 CFR Appendix H.
LOWER EXPLOSION LIMIT: Not flammable
UPPER EXPLOSION LIMIT: Not flammable
Nalco COmpany 1601 W. Diehl Road • Naperville, Illinois 60563-1198· (630}305-1000
For additional copies of an MSDS visit lJIIWW.nalco.com and request access
2/10

<<<PAGE 15>>>

SAFETY DATA SHEET
NNALCO
PRODUCT
COREXIT (R) EC9500A
EMERGENCY TELEPHONE NUMBER(S)
(800) 424-9300 (24 Hours) CHEMTREC
EXTINGUISHING MEDIA:
Alcohol foam, Carbon dioxide, Foam, Dry powder, Other extinguishing agent suitable for Class B fires, For large
fires, use water spray or fog, thoroughly drenching the buming material.
Water mist may be used to cool closed containers.
UNSUITABLE EXTINGUISHING MEDIA:
Do not use water unless flooding amounts are available.
FIRE AND EXPLOSION HAZARD:
Low Fire Hazard; liquids may bum,upon heating to temperatures at or above the flash point. May evolve oxides of
carbon (COx) under fire conditions. May evolve oxides of sulfur (SOx) under fire conditions.
SPECIAL PROTECTIVE EQUIPMENT FOR FIRE FIGHTING:
In case of fire, wear a full face positive-pressure self contained breathing apparatus and protective suit.
16. IACCIDENTAL RELEASE MEASURES
PERSONAL PRECAUTIONS:
Restrict access to area as appropriate until clean-up operations are complete. Stop or reduce any leaks if it is safe
to do so. Ventilate spill area if possible. Do not touch spilled material. Remove sources of ignition. Have '
emergency equipment (for fires, spills, leaks, etc.) readily available. Use personal protective equipment
recommended In Section 8 (Exposure Controls/Personal Protection). Notify appropriate government, occupational
health and safety and environmental authorities.
METHODS FOR CLEANING UP :
SMALL SPILLS: Soak up spill with absorbent material. Place residues in a suitable, covered, proper1y labeled
container. Wash affected area. LARGE SPILLS: Contain liquid using absorbent matenal, by digging trenches or by
diking. Reclaim into recovery or salvage drums or tank truck for proper disposal. Clean contaminated surfaces with
water or aqueous cleaning agents. Contact an approved waste hauler for disposal of contaminated recovered
material. Dispose of material in compliance with regulations indicated in Section 13 (Disposal Considerations).
ENVIRONMENTAL PRECAUTIONS:
Do not contaminate surface water.
17. IHANDLING AND STORAGE
HANDLING:
Use with adequate ventilation. Keep the containers closed when not in use. Do not take internally. Do not get in
eyes, on skin, on clothing. Have emergency equipment (for fires, spills, leaks, etc.) readily available.
STORAGE CONDITIONS:
Store away from heat and sources of ignition. Store separately from oxidizers. Store the containers tightly closed.
SUITABLE CONSTRUCTION MATERIAL:
Compatibility with Plastic Materials can vary; we therefore recommend that compatibility is tested prior to use.,
Stainless Steel 304, Stainless Steel 316L, Aluminum, Hastelloy C-276, MOPE (medium density polyethylene), HOPE
(high density polyethylene), PVC, Plexiglass, Teflon, Kalrez, Perfluoroelastomer, PTFE, TFE, FEP (encapsulated)
Nalco Company 1601 W. Diehl Road' Naperville. Illinois 60563-1198· (630)305-1000
For additional copies of an MSDS visit www.nalco.com and request access
3/10

<<<PAGE 16>>>

i
i
,SAFETY DATA SHEET
NNALCO
PRODUCT
COREXIT (R) EC9500A
EMERGENCY TEI.EPHONE NUMBER(S)
(800) 424-9300 (24 Hours) CHEMTREC
UNSUITABLE CONSTRUCTION MATERIAL:
Mild st~. Carbon steel. Buna-N. Brass. Copper, Natural rubber, Polyethylene. Polypropylene, Ethylene propylene,
EPDM. Neoprene, Nitrile, Polyurethane, Viton, Alfax, Hypalon
la, IEXPOSURE CONTROLSJPERSONAL PROTECTION
OCCUPATIONAL EXPOSURE LIMITS:
Exposure guidelines have not been established for this product. Available exposure limits for the substance(s) are
shown below.
ACGIHlTLV:
Substance{s)
Oil Mist (Mineral) TWA: Smglm3
STEL: 10 mg/m3
OSHA/PEL:
Substance(s}
Oil Mist (Mineral) TWA:. 5 mg/m3
AIHAlWEEL:
Substance(s)
Propylene Glycol TWA: 10 mg/m3
ENGINEERING MEASURES:
General ventilation is recommended.
RESPIRATORY PROTECTION:
Where concentrations in air may exceed the limits given in this section, the use of a half face filter mask or air
supplied breathing apparatus is recommended. A suitable filter material depends on the amount and type of
chemicals being handled. Consider the use of filter type: Multi-contaminant cartridge. with a Particulate pre-filter.
In event of emergency or planned entry into unknown concentrations a positive pressure, full-facepiece SCBA
should be used. If respiratory protection is required. institute a complete respiratory protection program including
selection. fit testing. training. maintenance and inspection.
HAND PROTECTION:
Nitrile gloves. PVC gloves
. SKIN PROTECTION:
Wear standard protective clothing.
EYE PROTECTION:
Wear chemical splash goggles.
HYGIENE RECOMMENDATIONS:
Keep an eye wash fountain available. Keep a safety shower available. If clothing is contaminated, remove clothing
and thoroughly wash the affected area. Launder contaminated clothing before reuse.
Nalco Company 1601 W. Diehl Road' Naperville. Illinois 60563-1198· (630}305-1000
For additional copies of an MSDS visit www.nalco.com and request access
4/10

<<<PAGE 17>>>

SAFETY DATA SHEET
PRODUCT
COREXIT (R) EC9500A'
EMERGENCY TELEPHONE NUMBER(S)
(BOO) 424-9300 (24 Hours) CHEMTREC
HUMAN EXPOSURE CHARACTERIZATION:
Based on our recommended product application and personal protective equipment, the potential human exposure
is: Low
19. IPHYSICAL AND CHEMICAL PROPERTIES
PHYSICAL STATE
Liquid
APPEARANCE
Clear Hazy Amber
ODOR
Hydrocarbon
SPECIFIC GRAVITY
DENSITY
SOLUBILITY IN WATER
pH (100 %)
VISCOSITY
POUR POINT
BOILING POINT
VAPOR PRESSURE
0.95 @ 60 of 115.6 °C
7.911b/gal
Miscible
6.2
177 cst @ 32 OF 10°C 70 cst @ 60 OF 115.6 °C
< -71°F 1< -57 °C
296 OF 1147 °C
15.5 mm Hg @ 100 OF 137.8 °C
Note: These physical properties are typical values for this product and are subject to change.
110. ISTABILITY AND REACTIVITY
STABILITY:
Stable under normal conditions.
HAZARDOUS POLYMERIZATION:
Hazardous polymerization will not occur.
CONDITIONS TO AVOID:
Heat and sources of ignition including static discharges.
MATERIALS TO AVOID;
Contact with strong oxidizers (e.g. chlorine, peroxides, chromates, nitric acid, perchlorate, concentrated oxygen,
permanganate)' may generate heat, fires, explosions and/or toxic vapors.
HAZARDOUS DECOMPOSITION PRODUCTS:
Under fire conditions: Oxides of carbon, Oxides of sulfur
111. ITOXICOLOGICAL INFORMATION
No toxicity studies have been conducted on this product.
SENSITIZATION:
This product is not expected to be a sensitizer.
Nalco Company 1601 W. Diehl Road • Naperville, Illinois 60563-1198 • (630)305-1000
For additional copies of an MSDS visit www.na!co.com and request access
5/10

<<<PAGE 18>>>

SAFETY DATA SHEET
NNALCO
PRODUCT'
COREXIT (R) EC9500A
EMERGENCY TELEPHONE NUMBER(S)
(800) 424-9300 (24 Hours) CHEMTREC
CARCINOGENICITY ;
None of the substances in this product are listed as carcinogens by the International Agency for Research on
Cancer (IARC). the National Toxicology Program (NTP) or the American Conference of Govemmentallndustrial
. Hygienists (ACGIH).
HUMAN HAZARD CHARACTERIZATION:
Based on our hazard characterization, the potential human hazard is: Moderate
112. IECOLOGICAL INFORMATION
ECOTOXICOLOGICAL EFFECTS:
The following results are for the product.
ACUTE INVERTEBRATE RESULTS'
Species ExpOsure LC50 EC50 Test Descriptor
Acartia tonsa 48 hrs 34mgn Product
48hrs 20.7 mgJI Product
Artemia MOBILITY :
The environmental fate was estimated using a level III fugacity model embedded in the EPI (estimation program
interface) Suite TM, provided by the US EPA. The model assumes a steady state condition between the total input
and output. The level III model does not require equilibrium between the defined media. The information provided is
intended to give the user a general estimate of the environmental fate of this product under the defined conditions of
the models. .
If released into the environment this material is expected to distribute to the air. water and soil/sediment in the
approximate respective percentages;
Air Water Soil/Sediment
<5% 10 -30% 50-70%
The portion in water is expected to float on the surface.
BIOACCUMULATION POTENTIAL
Component substances have a potential to bioaccumulate.
ENVIRONMENTAL HAZARD AND EXPOSURE CHARACTERIZATJON
Based on our hazard characterization, the potential environmental hazard is: Low
Based on our recommended produCt application and the product's characteristics, the potential environmental
exposure is: Low
If released into the environment, see CERCLAISUPERFUND in Section 15.
113. IDISPOSAL CONSIDERATIONS
If this product becomes a waste, it could meet the criteria of a hazardous waste as defined by the Resource
Conservation and Recovery Act (RCRA) 40 CFR 261. Before disposal. it should be determined if the waste meets
the criteria of a hazardous waste.
Nalco Company 1601 W. Diehl Road • Naperville, Illinois 80563-1198 • (630)305-1000
For additional copies of an MSDS visit www.nalco.com and request access
6/10

<<<PAGE 19>>>

SAFETY DATA SHEET
NNALCO
PRODUCT
COREXIT (R) EC9500A
EMERGENCY TELEPHONE NUMBER(S)
(BOO) 424-9300 (24 Hours) ,CHEMTREC
Hazardous Waste: 0018
Hazardous wastes must be transported by a licensed, hazardous waste transporter and disposed of or treated in a
properly licensed hazardous waste treatment. storage. disposal or recycling facility. Consult local. state, and federal
regulations for specific requirements.
114. ITRANSPORT INFORMATION
The information in this section is for reference only and should not take the place of a shipping paper (bill of lading)
specific to an order. Please note that the proper Shipping Name I Hazard Class may vary by packaging, properties.
and mode of transportation. Typical Proper Shipping Names for this product are as follows.
LAND TRANSPORT:
Proper Shipping Name: PRODUCT IS NOT REGULATED DURING
TRANSPORTATION
AIR TRANSPORT (ICAOIIATA) :
Proper Shipping Name: PRODUCT IS NOT REGULATED DURING
TRANSPORTATION
MARINE TRANSPORT (IMDGiIMO) ;
Proper Shipping Name: 115. !REGULATORY INFORMATION
PRODUCT IS NOT REGULATED DURING
TRANSPORTATION
This section contains additional information that may have relevance to regulatory compliance. ' The information in
this section is for reference only. It is not exhaustive, and should not be relied upon to take the place of an
individualized compliance or hazard assessment. Nalco accepts no liability for the use ofthis infOrmation.
NATIONAL REGULATIONS. USA:
OSHA HAZARD COMMUNICATION RULE, 29 CFR 1910.1200:
Based on our hazard evaluation, the following substance(s) in this product is/are hazardous and the reason(s) isfare
shown below.
Distillates. petroleum, hydrotreated light: Irritant
Propylene Glycol: Exposure Limit
Organic sulfonic acid salt: Irritant
CERCLAISUPERFUND, 40 CFR
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