- (E)-Butenedioic acid
- trans-1,2-Ethylenedicarboxylic acid
- Allomaleic acid
- Boletic acid
White, crystalline, odorless solid.
Fortifier in paper size resins, unsaturated polyester resins, & alkylated surface coating resins, misc applications, acidulant in gelatin desserts & dry beverage powders, chemical intermediate for plasticizers incl dibutyl fumarate.
Registry Numbers and Inventories.
EC Index Number
Mutagen; Primary Irritant
Swiss Giftliste 1
Japan ENCS (MITI)
Melting point, °C
Boiling point, °C
Sublimation point, °C
Vapor pressure, mmHg
5.2E-6 (25 C)
Vapor density (air=1)
Very low at 25 C
Negligible at room temperature
Odor Threshold Odor threshold Odorless
Solubility in water
Partition coefficient, pKow
Heat of vaporization
Heat of combustion
Hazards and Protection.
Store in a cool, dry, well-ventilated area away from incompatible substances. Keep containers tightly closed.
Wash thoroughly after handling. Remove contaminated clothing and wash before reuse. Use with adequate ventilation. Minimize dust generation and accumulation. Avoid contact with eyes, skin, and clothing. Keep container tightly closed. Avoid ingestion and inhalation.
Eyes: Wear appropriate protective eyeglasses or chemical safety goggles as described by OSHA's eye and face protection regulations in 29 CFR 1910.133 or European Standard EN166. Skin: Wear appropriate gloves to prevent skin exposure. Clothing: Wear appropriate protective clothing to minimize contact with skin.
Follow the OSHA respirator regulations found in 29CFR 1910.134 or European Standard EN 149. Always use a NIOSH or European Standard EN 149 approved respirator when necessary.
Clean up spills immediately, using the appropriate protective equipment. Sweep up, then place into a suitable container for disposal. Avoid generating dusty conditions. Provide ventilation.
Stable under normal shipping and handling conditions. However, may decompose if heated.
Amines, bases, oxidizers, reducing agents.
Carbon monoxide, carbon dioxide.
Upper exp. limit, %
Lower exp. limit, %
Wear a self-contained breathing apparatus in pressure-demand, MSHA/NIOSH (approved or equivalent), and full protective gear. Dusts at sufficient concentrations can form explosive mixtures with air. Combustion generates toxic fumes. Extinguishing media: For small fires, use water spray, dry chemical, carbon dioxide or chemical foam.
Slightly flammable. Hoocch:chcooh; very flammable at elevated temperatures.
Containers may explode when heated.
Irritating fumes of maleic anhydride may form in fires.
May cause irritation of the digestive tract. The toxicological properties of this substance have not been fully investigated. Exposure may cause gastrointestinal disturbances and kidney
May cause respiratory tract irritation. May cause effects similar to those described for ingestion. The toxicological properties of this substance have not been fully investigated.
May cause skin irritation. May be absorbed through the skin.
Contact may cause transient eye irritation. Exposure to solid may cause pain and redness.
If victim is conscious and alert, give 2-4 cupfuls of milk or water. Never give anything by mouth to an unconscious person. Get medical aid immediately.
Remove from exposure to fresh air immediately. If not breathing, give artificial respiration. If breathing is difficult, give oxygen. Get medical aid.
Flush skin with plenty of soap and water for at least 15 minutes while removing contaminated clothing and shoes. Get medical aid if irritation develops or persists.
Flush eyes with plenty of water for at least 15 minutes, occasionally lifting the upper and lower eyelids. Get medical aid.
USCG CHRIS Code
2917 19 90
Std. Transport #