Product ID:M0625 MALEIC ANHYDRIDE
MSDS Date:05/19/1997
FSC:6550
NIIN:00F054025
MSDS Number: CFGHK

SIGMA CHEMICAL COMPANY

3050 SPRUCE ST
SAINT LOUIS, MO 63178-5000
US

Emergency Phone: 314-771-5765/800-325-3010

Info Phone: 314-771-5765/800-325-3010

Cage: 21076

SIGMA CHEMICAL COMPANY

14508 ST LOUIS, MO 63178 US

Telephone: 314-771-5765

Cage: 21076

MALEIC ANHYDBIDE

CAS: 108-31-6

RTECS: ON3675000

OSHA PEL 1 MG/CUM

ACGIH TLV: 1.0 MG/CUM

EPA Report Quantity: 5000 LBS

DOT Report Quantity: 5000 LBS

LD50 LC50 Mixture:ORAL LD50(RAT): 400 MG/KG
Routes of Entry: Inhalation:YES Skin:YES Ingestion:YES
Reports of Carcinogenicity:NTP:NO IARC:NO OSHA:NO
Health Hazards Acute and Chronic:HARMFUL IF SWALLOWED, INHALED/ABSORBED
THROUGH THE SKIN. DESTRUCTIVE TO TISSUE OF THE MUCOUS MEMBRANES &
UPPER RESPIRATORY TRACT, EYES/SKIN. INHALATION: MAY RESULT IN
SPASM, INFLAMMATION & EDEMA OF TH E LARYNX & BRONCHI, CHEMICAL
PNEUMONITIS & PULMONARY EDEMA. MAY CAUSE ALLERGIC REACTIONS IN
SENSITIVE INDIVIDUALS. (SUPP
Explanation of Carcinogenicity:NONE
Effects of Overexposure:INFLAMMATION, BURNING, COUGHING, WHEEZING,
LARYNGITIS, SHORTNESS OF BREATH, HEADACHE, NAUSEA, VOMITING,
SNEEZING

First Aid:EYES/SKIN: IMMEDIATELY FLUSH W/COPIOUS AMOUNTS OF WATER FOR
15 MINS. INHALATION: REMOVE TO FRESH AIR. GIVE CPR/OXYGEN IF
NECESSARY. INGESTION: WASH OUT MOUTH W/WATER IF CONSCIOUS. OBTAIN
MEDICAL ATTEN TION IN ALL CASES.

Flash Point:218F
Lower Limits:7.1
Upper Limits:1.4
Extinguishing Media:WATER SPRAY, CO2
Fire Fighting Procedures:WEAR SELF CONTAINED BREATHING APPARATUS &
PROTECTIVE CLOTHING TO PREVENT CONTACT W/SKIN & EYES. DON'T USE DRY
CHEMICAL POWDER EXTINGUISHER ON THIS MATERIAL.
Unusual Fire/Explosion Hazard:THIS MATERIAL, LIKE MOST MATERIAL IN
POWDER FORM, IS CAPABLE OF CREATING A DUST EXPLOSION. AUTOIGNITION
TEMP: 870F.

Spill Release Procedures:EVACUATE AREA. WEAR SELF CONTAINED BREATHING
APPARATUS, RUBBER BOOTS & HEAVY RUBBER GLOVES. SWEEP UP, PLACE IN A
BAG & HOLD FOR WASTE DISPOSAL. AVOID RAISING DUST. VENTILATE AREA &
WASH SITE AFTER MAT ERIAL PICKUP IS COMPLETE.

Handling and Storage Precautions:STORE IN A COOL, DRY PLACE. KEEP
TIGHTLY CLOSED.
Other Precautions:DON'T BREATHE DUST. AVOID CONTACT W/EYES, SKIN &
CLOTHING. AVOID PROLONGED/REPEATED EXPOSURE.

Respiratory Protection:WEAR APPROPRIATE NIOSH/MSHA APPROVED RESPIRATOR
Ventilation:USE ONLY IN A CHEMICAL FUME HOOD.
Protective Gloves:CHEMICAL RESISTANT
Eye Protection:SAFETY GOGGLES
Other Protective Equipment:SAFETY SHOWER & EYE BATH, SUITABLE
PROTECTIVE CLOTHING.
Work Hygienic Practices:REMOVE/LAUNDER CONTAMINATED CLOTHING & SHOES
BEFORE REUSE. WASH THOROUGHLY AFTER HANDLING.
Supplemental Safety and Health
HEALTH HAZ CONT'D: CORROSIVE, CAUSES BURNS. SENSITIZER. STERNUTATOR.
CHRONIC EFFECTS: ASTHMA/DERMATITIS. MALEIC ANHYDRIDE DECOMPOSES
(DECARBOXYLATION/POLYMERIZATION) IN THE PRESENCE OF ALKALI METALS/A
MINES AT TEMPS >302F. EXOTHERMIC REACTION WILL TAKE PLACE RAPIDLY &
THE GAS EVOLVED CAN CAUSE EQUIPMENT TO RUPTURE.

Boiling Pt:B.P. Text:392F
Melt/Freeze Pt:M.P/F.P Text:129-132.8F
Decomp Temp:Decomp Text:>302F
Vapor Pres:0.16
Vapor Density:3.4
Appearance and Odor:WHITE CRYSTALLINE BRIQUETTES

Stability Indicator/Materials to Avoid:YES
STRONG OXIDIZING AGENTS, STRONG ACIDS, STRONG BASES, STRONG REDUCING
AGENTS, ALKALI METALS, AMINES
Stability Condition to Avoid:MAY DECOMPOSE ON EXPOSURE TO MOIST
AIR/WATER.
Hazardous Decomposition Products:CO, CO2

Waste Disposal Methods:DISSOLVE/MIX MATERIAL W/COMBUSTIBLE SOLVENT &
BURN IN A CHEMICAL INCINERATOR EQUIPPED W/AN AFTERBURNER &
SCRUBBER. DISPOSE OF IAW/LOCAL, STATE & FEDERAL REGULATIONS. RCRA
WASTE NUMBER U147. UN2215.

Disclaimer (provided with this information by the compiling agencies):
This information is formulated for use by elements of the Department
of Defense. The United States of America in no manner whatsoever,
expressly or implied, warrants this information to be accurate and
disclaims all liability for its use. Any person utilizing this
document should seek competent professional advice to verify and
assume responsibility for the suitability of this information to their
particular situation.