Material Safety Data Sheet
MSDS ID NO.: 0288MAR019
Revision date: 09/12/2005
1. CHEMICAL PRODUCT AND COMPANY INFORMATION
Product name: Marathon Molten Maleic Anhydride
Synonyms: Maleic Anhydride; Maleic Anyhdride Molten; 2,5-Furandione
Chemical Family: Anhydride
Formula: C4H2O3
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
Maleic Anhydride (MA) is a white solid or clear molten liquid. MA is produced by the catalytic reaction of butane with air in
the presence of a catalyst. During loading and unloading activities, it is handled as a molten liquid material.
Product information
Name CAS Number Weight % ACGIH Exposure OSHA - Vacated Other:
Limits: PELs - Time
Weighted Ave
Marathon Maleic Anhydride 108-31-6 100 = 0.1 ppm TWA = 0.25 ppm TWA
= 1 mg/m鲁 TWA
Component Information
Name CAS Number Weight % ACGIH Exposure OSHA - Vacated Other:
Limits: PELs - Time
Weighted Ave
Maleic Anhydride 108-31-6 100 = 0.1 ppm TWA = 0.25 ppm TWA
= 1 mg/m鲁 TWA
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
MALEIC ANHYDRIDE (MA) IS A WHITE SOLID OR CLEAR MOLTEN LIQUID WITH A SHARP ACRID ODOR. MA IS
USUALLY HEATED DURING LOADING AND UNLOADING TO PREVENT SOLIDIFICATION, AND THEREFORE, HAS
THE POTENTIAL TO CAUSE SKIN BURNS. MA LIQUID AND VAPOR CAN CAUSE SEVERE IRRITATION AND
BURNS TO NOSE, THROAT AND RESPIRATORY TRACT.
OSHA WARNING LABEL:
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WARNING.
CONTACT WITH HEATED MATERIAL MAY CAUSE SEVERE BURNS.
LIQUID AND VAPOR CAN CAUSE SEVERE IRRITATION AND BURNS TO THE NOSE, THROAT AND
RESPIRATORY TRACT.
CONSUMER WARNING LABEL:
A CONSUMER WARNING LABEL IS NOT APPLICABLE FOR THIS PRODUCT.
Inhalation: Inhalation of significant amounts of dust, vapor or fume can cause severe irritation
and burns to the nose, throat and respiratory tract. Exposure to this product could
cause an allergic reaction (narrowing of the air passages resulting in difficulty in
breathing, tightness in the chest, coughing and wheezing) in some sensitive
individuals. Other allergic symptoms could include itchy and watery eyes, runny and
stuffy nose, sweating, flushing, hives, rapid heart rate and lowered blood pressure.
Ingestion: Ingestion may cause chemical burns of the mouth, throat, esophagus and stomach.
Additional symptoms would include nausea, abdominal pain, diarrhea and vomiting
of blood.
Skin contact: Skin contact with hot product can cause skin burns. Additional symptoms from
exposure may include an allergic skin reaction or rash followed by blistering, scaling
or other skin effects.
Eye contact: Hot product causes severe burns. This product is an eye irritant. Significant
exposure to dust or vapors can produce severe irriation and burning sensations in
the eyes and fibrous deposits (keratinization) on the cornea. Additional symptoms
may include painful sensitivity to strong light, double vision and blurred vision around
lights (halo vision)
Carcinogenic Evaluation:
Product information
Name IARC NTP ACGIH - OSHA - Select
Carcinogens: Carcinogens: Carcinogens: Carcinogens:
Marathon Maleic Anhydride NE A4 - Not Classifiable as a
108-31-6 Human Carcinogen
Notes: The International Agency for Research on Cancer (IARC) has not evaluated this
product.
Component Information
Name IARC NTP ACGIH - OSHA - Select
Carcinogens: Carcinogens: Carcinogens: Carcinogens:
Maleic Anhydride A4 - Not Classifiable as a
108-31-6 Human Carcinogen
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: For contact with hot molten material, immerse or flush skin with cold water for at least
15 minutes. Call a physician.
Remove dust by washing with soap and large amounts of water. If symptoms or
irritation occur, call a physician.
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Ingestion: Ingestion not likely. Give water or milk to dilute the solution. Flush mouth out
thoroughly to remove residual material. Do not induce vomiting. If large amounts
are swallowed, immediately call a physician.
Eye contact: For contact with hot molten material, flush with large amounts of tepid water for at
least 15 minutes. Immediately call a physician.
For contact with vapors or dust, flush with large amounts of tepid water for at least 15
minutes. If symptoms or irritation occur, call a physician.
Medical conditions aggravated by Pre-existing eye, skin, respiratory, liver and/or kidney disorders may be aggravated
exposure: by exposure to components of this product.
5. FIRE FIGHTING MEASURES
Suitable extinguishing media: Class B fire extinguishing media such as CO2, foam
(AFFF/ATC) or water spray can be used. Dry chemical
extinguishing media should not be used. These
extinguishers contain sodium carbonate which will catalyze
the decomposition of maleic anhydride. Fire fighting should
be attempted only by those who are adequately trained and
equipped with proper protective equipment.
Specific hazards: This product is not a combustible liquid per the OSHA
Hazard Communication Standard, but will ignite and burn at
temperatures exceeding the flash point.
Special protective equipment for firefighters: Avoid using straight water streams. Water spray and foam
(AFFF/ATC) must be applied carefully to avoid frothing and
from as far a distance as possible. Avoid excessive water
spray application. Use water spray to cool exposed surfaces
from as far a distance as possible. Keep run-off water out of
sewers and water sources.
Flash point: 215 F; 101.6 C
Autoignition temperature: No data available.
Flammable limits in air - lower (%): 1.4
Flammable limits in air - upper (%): No data available.
NFPA rating: HMIS classification:
Health: 3 Health: 3
Flammability: 1 Flammability: 1
Reactivity: 1 Reactivity: 1
Other: - Special: *See Section 8 for guidance in selection of
personal protective equipment.
6. ACCIDENTAL RELEASE MEASURES
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:
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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.
Avoid repeated and prolonged skin contact. Exercise good personal hygiene including removal of soiled clothing and
prompt washing with soap and water.
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 full face organic vapor chemical cartridge or supplied air respirators when
vapors or dust exceed established limits. Observe respirator protection factor criteria
cited in ANSI Z88.2. Self-contained breathing apparatus should be used for fire
fighting.
Skin and body protection: Impermeable gloves to prevent skin contact. Natural rubber, neoprene or nitrile
gloves to prevent skin contact.
Eye protection: Approved full face respirator should be used for product loading/unloading and
gauging activities. Goggles and faceshield can be used for brief grab analysis
sampling.
Hygiene measures: Use mechanical ventilation equipment that is explosion-proof.
9. PHYSICAL AND CHEMICAL PROPERTIES:
Appearance: Clear Liquid
Physical state (Solid/Liquid/Gas): Liquid
Substance type (Pure/Mixture): Pure
Color: Clear
Odor: Acrid
Molecular weight: 98
pH: No data available.
Boiling point/range (5-95%): 395 F
Melting point/range: Not determined.
Decomposition temperature: Not applicable.
Specific gravity: 1.29 @ 158 F.
Density: 10.8 lbs/gal
1.29 kg/l @ 70 C.
Bulk density: No data available.
Vapor density: 3.38
Vapor pressure: 6.2 mm Hg @ 171 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.
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Hazardous decomposition products: Carbon monoxide and carbon dioxide
Materials to avoid: Strong oxidizers such as nitrates, chlorates, peroxides.
Amines, alkali metals and alkaline earth metals (potassium,
sodium, lithium) may cause fires or explosions.
Conditions to avoid: Sources of heat or ignition.
11. TOXICOLOGICAL INFORMATION
Acute toxicity:
Product information
Name CAS Number Inhalation: Dermal: Oral:
Marathon Maleic Anhydride 108-31-6 No data available LD50 is 2.6 gm/kg LD50 is 481-850 mg/kg [Rat]
[Rabbit]
Maleic Anydride (MA) produced respiratory irritation and nasal and lung lesions in rats, monkeys and hamsters repeatedly
exposed to significant MA vapors. Oral ingestion of MA produced significant kidney damage and slight liver effects in rats
in oral feeding studies. Maleic anhydride (MA) was not observed to be carcinogenic to rats given 10, 32 or 100 mg/kg/day
MA in the diet for 2 years. MA did not induce mutations in the Ames Salmonella assay with or without metabolic
activiation. MA produced chromosomal aberrations in Chinese hamster cells (in vitro) but did not affect chromosomes in
the bone marrow of rats exposed for 6 hours of up to 100 mg/m3 MA or produce genotoxicity in an in vivo bone marrow
cell clastogenesis assay. No teratogenic or fetotoxic effects were observed in the offspring of pregnant female rats
administered up to 140 mg/kg/day MA during gestation even though maternal toxicity was noted in exposed animals.
12. ECOLOGICAL INFORMATION
Ecotoxicity effects: This product does not concentrate or accumulate in the food chain. The 96 hour
TLM for maleic anhydride is 75 mg/l in bluegill and rainbow trout and 230 mg/l in
mosquito fish. The EC50 of MA is 88 - 5600 mg/l in Daphnia.
13. DISPOSAL CONSIDERATIONS
Cleanup Considerations: This product as produced is specifically listed as an EPA
RCRA hazardous waste (U147) according to federal
regulations (40 CFR 261.33). 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: Maleic Anhydride
UN/Identification No: UN 2215
Hazard Class: 8
Packing group: III
DOT reportable quantity (lbs): 5000 pounds
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TDG (Canada):
Proper shipping name: Maleic Anhydride
UN/Identification No: UN 2215
Hazard Class: 8
Packing group: III
Regulated substances: 5000 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
Maleic Anhydride 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:
Name CERCLA/SARA - Hazardous Substances and their Reportable Quantities
Maleic Anhydride = 2270 kg final RQ
= 5000 lb final RQ
SARA Section 311/312: The following EPA hazard categories apply to this product:
Acute Health 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:
Maleic Anhydride = 1.0 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:
Maleic Anhydride
Louisiana Right-To-Know: Not Listed
California Proposition 65: Not Listed
New Jersey Right-To-Know: sn 1152
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
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Pennsylvania RTK - Special Hazardous Not Listed
Substances:
New Jersey - Special Hazardous Substances: Not Listed
New Jersey - Environmental Hazardous SN 1152
Substances List:
Illinois - Toxic Air Contaminants Present
New York - Reporting of Releases Part 597 - = 100 lbs Land/Water RQ
List of Hazardous Substances: = 5,000 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:
Maleic Anhydride D1B; D2A; E 0.1% (English Item 964, French Item 231)
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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