Material Safety Data Sheet
MSDS ID NO.: 0158MAR019
Revision date: 09/12/2005
1. CHEMICAL PRODUCT AND COMPANY INFORMATION
Product name: Marathon Xylene
Synonyms: Xylene; Mixed Xylenes, Dimethyl Benzene; Methyl Toluene
Chemical Family: Aromatic Hydrocarbon
Formula: C6H4(CH3)2
Manufacturer:
Marathon Petroleum Company LLC
539 South Main Street
Findlay OH 45840
Other information: 419-421-3070
Emergency telephone number: 877-627-5463
2. COMPOSITION/INFORMATION ON INGREDIENTS
Xylene is an mixture of C8 aromatic petroleum hydrocarbons composed of the three isomers of xylene (ortho, meta &
para) and ethylbenzene. Contains trace amounts of toluene, C9 hydrocarbons and benzene (<50 ppm).
Product information
Name CAS Number Weight % ACGIH Exposure OSHA - Vacated Other:
Limits: PELs - Time
Weighted Ave
Marathon Xylene 1330-20-7 100 = 100 ppm TWA = 100 ppm TWA
= 150 ppm STEL = 150 ppm STEL
= 435 mg/m鲁 TWA
= 655 mg/m鲁 STEL
Component Information
Name CAS Number Weight % ACGIH Exposure OSHA - Vacated Other:
Limits: PELs - Time
Weighted Ave
Xylene 1330-20-7 85 = 100 ppm TWA = 100 ppm TWA
= 150 ppm STEL = 150 ppm STEL
= 435 mg/m鲁 TWA
= 655 mg/m鲁 STEL
Ethyl Benzene 100-41-4 15 = 100 ppm TWA = 100 ppm TWA
= 125 ppm STEL = 125 ppm STEL
= 435 mg/m鲁 TWA
= 545 mg/m鲁 STEL
Notes: The manufacturer has voluntarily elected to reflect exposure limits contained in
OSHA's 1989 air contaminants standard in its MSDS's, even though certain of those
exposure limits were vacated in 1992.
3. HAZARDS IDENTIFICATION
EMERGENCY OVERVIEW
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XYLENE IS A COLORLESS LIQUID WITH A STRONG HYDROCARBON ODOR. IT IS A VOLATILE AND EXTREMELY
FLAMMABLE LIQUID THAT MAY CAUSE FLASH FIRES. KEEP AWAY FROM HEAT, SPARKS AND OPEN FLAME.
CONTAINS MATERIAL THAT HAS CAUSED CANCER BASED ON ANIMAL DATA. NEVER SIPHON THIS PRODUCT
BY MOUTH. IF SWALLOWED, THIS PRODUCT MAY GET SUCKED INTO THE LUNGS (ASPIRATED) AND CAUSE
LUNG DAMAGE OR EVEN DEATH. CONTACT MAY CAUSE EYE AND SKIN IRRITATION.
OSHA WARNING LABEL:
DANGER!
FLAMMABLE LIQUID.
MAY CAUSE EYE OR SKIN IRRITATION.
CONTAINS MATERIAL THAT HAS CAUSED CANCER BASED ON ANIMAL DATA.
ASPIRATION (INADVERTENT SUCTION) OF LIQUID INTO THE LUNGS CAN PRODUCE CHEMICAL PNEUMONIA
OR EVEN DEATH.
CONSUMER WARNING LABEL:
A CONSUMER WARNING LABEL IS NOT APPLICABLE FOR THIS PRODUCT.
Inhalation: Overexposure or prolonged exposure to lower concentrations can cause respiratory
irritation. Gross overexposure can cause central nervous system depression,
producing symptoms of headache, dizziness, narcosis, and muscular incoordination.
Excessive product exposure may cause cardiac sensitization.
Ingestion: Liquid ingestion causes severe gastrointestinal pain, abdominal cramps, nausea,
vomiting, narcosis and central nervous system depression. Aspiration (inadvertent
suction) of liquid into the lungs must be avoided as even small quantities in the lungs
can produce chemical pneumonitis, pulmonary edema/hemorrhage and even death.
Skin contact: Prolonged and repeated liquid contact can cause defatting and drying of the skin and
can lead to irritation and/or dermatitis.
Eye contact: Liquid contact will produce a burning sensation and irritation in the eye. Eye irritation,
photophobia and reversible corneal vacuolization may occur from vapor exposure
above the TLV.
Carcinogenic Evaluation:
Product information
Name IARC NTP ACGIH - OSHA - Select
Carcinogens: Carcinogens: Carcinogens: Carcinogens:
Marathon Xylene NE A4 - Not Classifiable as a
1330-20-7 Human Carcinogen
Notes: The International Agency for Research on Cancer (IARC) has concluded that there is
inadequate evidence for the carcinogenicity of xylene in either humans or animals
(Group 3).
Component Information
Name IARC NTP ACGIH - OSHA - Select
Carcinogens: Carcinogens: Carcinogens: Carcinogens:
Xylene A4 - Not Classifiable as a
1330-20-7 Human Carcinogen
Ethyl Benzene Monograph 77, 2000 A3 - Animal Carcinogen
100-41-4
Notes: The International Agency for Research on Cancer (IARC) has concluded that ethyl
benzene is possibly carcinogenic to humans (Group 2B).
MSDS ID NO.: 0158MAR019 Product name: Marathon Xylene Page 2 of 8
4. FIRST AID MEASURES
Inhalation: If affected, move person to fresh air. If breathing is difficult, administer oxygen. If not
breathing or if no heartbeat, give artificial respiration or cardiopulmonary
resuscitation (CPR). Immediately call a physician.
Skin contact: Wash with soap and large amounts of water. Remove contaminated clothing. If
symptoms or irritation occur, call a physician.
Ingestion: If swallowed, do not induce vomiting and do not give liquids. Immediately call a
physician.
Eye contact: Flush eyes with large amounts of tepid water for at least 15 minutes. If symptoms or
irritation occur, call a physician.
Medical conditions aggravated by Preexisting skin, eye and respiratory disorders may be aggravated by exposure to
exposure: components of this product.
5. FIRE FIGHTING MEASURES
Suitable extinguishing media: For small fires, Class B fire extinguishing media such as
CO2, dry chemical, foam (AFFF/ATC) or water spray can be
used. For large fires, water spray, fog or foam (AFFT/ATC)
can be used. Fire fighting should be attempted only by those
who are adequately trained and equipped with proper
protective equipment.
Specific hazards: This product has been determined to be a flammable liquid
per the OSHA Hazard Communication Standard, and should
be handled accordingly. Vapors may travel along the
ground or be moved by ventilation and ignited by many
sources such as pilot lights, sparks, electric motors, static
discharge, or other ignition sources at locations distant from
material handling. Flashback can occur along vapor trail.
For additional fire related information, see NFPA 30 or the
North American Emergency Response Guide 130.
Special protective equipment for firefighters: Avoid using straight water streams. Water may be
ineffective in extinguishing low flash point fires, but can be
used to cool exposed surfaces. Avoid excessive water spray
application. Water spray and foam (AFFF/ATC) must be
applied carefully to avoid frothing and from as far a distance
as possible. Keep run-off water out of sewers and water
sources.
Flash point: 86-93 F
Autoignition temperature: 867-984 F
Flammable limits in air - lower (%): 1.1
Flammable limits in air - upper (%): 7.0
NFPA rating: HMIS classification:
Health: 2 Health: 2
Flammability: 3 Flammability: 3
Reactivity: 1 Reactivity: 1
Other: - Special: *See Section 8 for guidance in selection of
personal protective equipment.
6. ACCIDENTAL RELEASE MEASURES
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Personal precautions: Keep public away. Isolate and evacuate area. Shut off source if safe to do so.
Eliminate all ignition sources. Advise authorities and National Response Center (800-
424-8802) if substance has entered a watercourse or sewer. Notify local health and
pollution control agencies, if appropriate. Contain liquid with sand or soil. Recover
and return free product to proper containers. Use suitable absorbent materials such
as vermiculite, sand, or clay to clean up residual liquids.
7. HANDLING AND STORAGE
Handling:
Comply with all applicable EPA, OSHA, NFPA and consistent state and local requirements. Use appropriate grounding
and bonding practices. Store in properly closed containers that are appropriately labeled and in a cool well-ventilated
area. Do not expose to heat, open flames, strong oxidizers or other sources of ignition. Do not cut, drill, grind or weld on
empty containers since they may contain explosive residues.
Never siphon this product by mouth. Avoid repeated and prolonged skin contact. Exercise good personal hygiene
including removal of soiled clothing and prompt washing with soap and water.
Hydrocarbons are basically non-conductors of electricity and can become electrostatically charged during mixing, filtering,
pumping at high flow rates or loading and transfer operations. If this charge reaches a sufficiently high level, sparks can
form that may ignite the vapors of flammable liquids. Sudden release of hot organic chemical vapors or mists from
process equipment operating under elevated temperature and pressure, or sudden ingress of air into vacuum equipment
may result in ignitions without the presence of obvious ignition sources. Nozzle spouts must be kept in contact with the
containers or tank during the entire filling operation.
8. EXPOSURE CONTROLS / PERSONAL PROTECTION
PERSONAL PROTECTIVE EQUIPMENT
Engineering measures: Local or general exhaust required in an enclosed area or when there is inadequate
ventilation.
Respiratory protection: Approved organic vapor chemical cartridge or supplied air respirators should be worn
for exposures to any components exceeding the TLV or STEL. Observe respirator
protection factor criteria cited in ANSI Z88.2.
Skin and body protection: Viton gloves should be used to prevent skin contact.
Eye protection: No special eye protection is normally required. Where splashing is possible, wear
safety glasses with side shields.
Hygiene measures: Use mechanical ventilation equipment that is explosion-proof.
9. PHYSICAL AND CHEMICAL PROPERTIES:
Appearance: Colorless Liquid
Physical state (Solid/Liquid/Gas): Liquid
Substance type (Pure/Mixture): Mixture
Color: Colorless
Odor: Sweet Aromatic
Molecular weight: 106.1
pH: Neutral
Boiling point/range (5-95%): 280-291 F
Melting point/range: Not determined.
Decomposition temperature: Not applicable.
Specific gravity: 0.86 @ 60 F
Density: 7.2 lbs/ gal
Bulk density: No data available.
Vapor density: 3.7
MSDS ID NO.: 0158MAR019 Product name: Marathon Xylene Page 4 of 8
Vapor pressure: 6-16 mm Hg @ 68 F
Evaporation rate: No data available.
Solubility: Not determined
Solubility in other solvents: No data available.
Partition coefficient (n-octanol/water): No data available.
VOC content(%): No data available.
Viscosity: No data available.
10. STABILITY AND REACTIVITY
Stability: The material is stable at 70 F, 760 mm pressure.
Polymerization: Will not occur.
Hazardous decomposition products: Carbon monoxide, xylene vapors
Materials to avoid: Strong oxidizers such as nitrates, chlorates, peroxides.
Conditions to avoid: Sources of heat or ignition.
11. TOXICOLOGICAL INFORMATION
Acute toxicity:
Product information
Name CAS Number Inhalation: Dermal: Oral:
Marathon Xylene 1330-20-7 LC50 = 5,267-6,700 ppm LD50 > 4 gm/kg LD50 = 2.5 - 10 ml/kg
4-6 hrs [Rats/Mice] [Rabbits] [Rats]
Laboratory animals exposed to high doses of xylene showed evidence of effects in the liver, kidneys, lungs, spleen, heart
and adrenals. Exposure of pregnant rats, mice and rabbits during gestation to significant concentrations of xylene
produced maternal, fetal and developmental toxicity (skeletal retardation, cleft palate, and wavy ribs) generally at
maternally toxic doses. These types of fetotoxic effects have been associated with maternal toxicity. Repeated inhalation
of high xylene concentrations have shown impairment of performance abilities (behavioral tests) in animals and man.
Xylene produced a mid frequency hearing loss in rats subchronically exposed to high concentrations of xylene.
Gross overexposure or severe poisoning incidents in humans to xylenes has been reported to cause lung, liver, kidney,
heart and brain damage as well as neurologic disturbances.
The product contains >0.1% ethyl benzene (EB). Rats and mice exposed to 750 ppm EB for 6 hours/day, 5 days/week
for two years developed kidney tumors in male and femmale rats and lung tumors in male mice and liver tumor in female
mice.
12. ECOLOGICAL INFORMATION
Ecotoxicity effects: The 96 hour LC50 for xylene isomers range from 2.6-28 mg/l in flathead minnow and
rainbow trout. The 24 hour ED50 for xylene ranges from 1.0-3.6 mg/l in daphnia. The
192 hour EC50 for xylene ranges from 3.9-4.4 mg/l in algae. This product does not
concentrate or accumulate in the food chain.
13. DISPOSAL CONSIDERATIONS
MSDS ID NO.: 0158MAR019 Product name: Marathon Xylene Page 5 of 8
Cleanup Considerations: This product as produced is not specifically listed as an EPA
RCRA hazardous waste according to federal regulations (40
CFR 261). However, when discarded or disposed of, it may
meet the criteria of an "characteristic" hazardous waste. This
product could also contain benzene at >0.5 ppm and could
exhibit the characteristics of "toxicity" as determined by the
toxicity characteristic leaching procedure (TCLP). This
material could become a hazardous waste if mixed or
contaminated with a hazardous waste or other substance(s).
It is the responsibility of the user to determine if disposal
material is hazardous according to federal, state and local
regulations.
14. TRANSPORT INFORMATION
49 CFR 172.101:
DOT:
Transport Information: This material when transported via US commerce would be regulated by DOT
Regulations.
Proper shipping name: Xylenes
UN/Identification No: UN 1307
Hazard Class: 3
Packing group: III
DOT reportable quantity (lbs): 1000 pounds.
TDG (Canada):
Proper shipping name: Xylenes
UN/Identification No: UN 1307
Hazard Class: 3
Packing group: III
Regulated substances: 1000 pounds.
15. REGULATORY INFORMATION
Federal Regulatory Information:
US TSCA Chemical Inventory Section 8(b): This product and/or its components are listed on the TSCA
Chemical Inventory.
OSHA Hazard Communication Standard: This product has been evaluated and determined to be
hazardous as defined in OSHA's Hazard Communication
Standard.
EPA Superfund Amendment & Reauthorization Act (SARA):
SARA Section 302: This product contains the following component(s) that have been listed on EPA's
Extremely Hazardous Substance (EHS) List:
Name CERCLA/SARA - Section 302 Extremely Hazardous Substances and TPQs
Xylene NA
Ethyl Benzene NA
SARA Section 304: This product contains the following component(s) identified either as an EHS or a
CERCLA Hazardous substance which in case of a spill or release may be subject to
SARA reporting requirements:
MSDS ID NO.: 0158MAR019 Product name: Marathon Xylene Page 6 of 8
Name CERCLA/SARA - Hazardous Substances and their Reportable Quantities
Xylene = 100 lb final RQ
= 45.4 kg final RQ
Ethyl Benzene = 100 lb final RQ
= 1000 lb final RQ
= 45.4 kg final RQ
= 454 kg final RQ
SARA Section 311/312: The following EPA hazard categories apply to this product:
Acute Health Hazard
Fire Hazard
Chronic Health Hazard
SARA Section 313: This product contains the following component(s) that may be subject to reporting on
the Toxic Release Inventory (TRI) From R:
Name CERCLA/SARA 313 Emission reporting:
Xylene = 1.0 percent de minimis concentration
Ethyl Benzene = 0.1 percent de minimis concentration
State and Community Right-To-Know Regulations:
The following component(s) of this material are identified on the regulatory lists below:
Xylene
Louisiana Right-To-Know: Not Listed
California Proposition 65: Not Listed
New Jersey Right-To-Know: sn 2014
Pennsylvania Right-To-Know: environmental hazard
Massachusetts Right-To Know: Present
Florida substance List: Not Listed.
Rhode Island Right-To-Know: Toxic, Flammable
Michigan critical materials register list: Annual usage threshold = 100 pounds (all isomers)
Massachusetts Extraordinarily Hazardous Not Listed
Substances:
California - Regulated Carcinogens: Not Listed
Pennsylvania RTK - Special Hazardous Not Listed
Substances:
New Jersey - Special Hazardous Substances: flammable - third degree
New Jersey - Environmental Hazardous SN 2014
Substances List:
Illinois - Toxic Air Contaminants Present
New York - Reporting of Releases Part 597 - = 1 lb Land/Water RQ
List of Hazardous Substances: = 1,000 lbs Air RQ
Ethyl Benzene
Louisiana Right-To-Know: Not Listed
California Proposition 65: Not Listed
New Jersey Right-To-Know: sn 0851
Pennsylvania Right-To-Know: environmental hazard
Massachusetts Right-To Know: Present
Florida substance List: Not Listed.
Rhode Island Right-To-Know: Toxic, Flammable
Michigan critical materials register list: Not Listed.
Massachusetts Extraordinarily Hazardous Not Listed
Substances:
California - Regulated Carcinogens: Not Listed
Pennsylvania RTK - Special Hazardous Not Listed
Substances:
New Jersey - Special Hazardous Substances: flammable - third degree
MSDS ID NO.: 0158MAR019 Product name: Marathon Xylene Page 7 of 8
New Jersey - Environmental Hazardous SN 0851
Substances List:
Illinois - Toxic Air Contaminants Present
New York - Reporting of Releases Part 597 - = 1 lb Land/Water RQ
List of Hazardous Substances: = 1,000 lbs Air RQ
Canadian Regulatory Information:
Canada DSL/NDSL Inventory: This product and/or its components are listed either on the Domestic Substances List
(DSL) or the Non Domestic Substance List (NDSL).
Name Canada - WHMIS: Classifications of Substances: Canada - WHMIS: Ingredient Disclosure:
Xylene B2; D2A; D2B
Ethyl Benzene B2; D2A; D2B 0.1% (English Item 697, French Item 854)
16. OTHER INFORMATION
Additional Information: No data available.
Prepared by: Craig M. Parker Manager, Toxicology and Product Safety
The information and recommendations contained herein are based upon tests believed to be reliable. However,
Marathon Petroleum Company LLC (MPC) does not guarantee their accuracy or completeness nor shall any of this
information constitute a warranty, whether expressed or implied, as to the safety of the goods, the merchantability of the
goods, or the fitness of the goods for a particular purpose. Adjustment to conform to actual conditions of usage maybe
required. MPC assumes no responsibility for results obtained or for incidental or consequential damages, including lost
profits arising from the use of these data. No warranty against infringement of any patent, copyright or trademark is made
or implied.
End of Safety Data Sheet
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