Product Identification
【Product Name】Butanedioic anhydride
【Synonyms】Succinyl oxide；丁二酸酐
【CAS】108-30-5
【Formula】C4H4O3
【Molecular Weight】100.07
【EINECS】203-570-0
【RTECS】WN0875000
【RTECS Class】Tumorigen; Mutagen; Reproductive Effector; Primary Irritant
【Merck】12,9039
【Beilstein/Gmelin】108441
【Beilstein Reference】5-17-11-00006
【EC Index Number】607-103-00-5
【EC Class】Irritant

Physical and Chemical Properties
【Appearance】Colorless needles or white crystalline solid.
【Solubility in water】20 g/L
【Boiling Point】261℃
【Vapor Pressure】0.012 (25℃)
【Density】1.503 g/cm3
【Partition Coefficient】-1.31
【Heat Of Vaporization】49.9 kJ/mol
【Heat Of Combustion】-1537 kJ/mol
【Usage】Acidulant in processed foods.
【Vapor Density】3.7

First Aid Measures
【Ingestion】Do NOT induce vomiting. 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.
【Inhalation】Remove from exposure to fresh air immediately. If not breathing, give artificial respiration. If breathing is difficult, give oxygen. Get medical aid. DO NOT use mouth-to-mouth respiration.
【Skin】Get medical aid if irritation develops or persists. Wash clothing before reuse. Flush skin with plenty of soap and water.
【Eyes】Immediately flush eyes with plenty of water for at least 15 minutes, occasionally lifting the upper and lower eyelids. Get medical aid.

Handling and Storage
【Storage】Store in a cool, dry place. Keep container closed when not in use.
【Handling】Wash thoroughly after handling. Remove contaminated clothing and wash before reuse. Minimize dust generation and accumulation. Avoid contact with eyes, skin, and clothing. Avoid ingestion and inhalation.

Hazards Identification
【Inhalation】Causes respiratory tract irritation. May cause allergic respiratory reaction.
【Skin】Causes skin irritation.
【Eyes】Causes eye irritation.
【Ingestion】May cause irritation of the digestive tract. May be harmful if swallowed.
【EC Risk Phrase】R 36/37
【EC Safety Phrase】S 25

Exposure Controls/Personal Protection
【Personal Protection】Eyes: Wear safety glasses and chemical ggles if splashing is possible. Skin: Wear appropriate gloves to prevent skin exposure. Clothing: Wear appropriate protective clothing to minimize contact with skin.
【Respirators】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.
【Exposure Effects】May cause cancer according to animal studies.
【Poison Class】5

Fire Fighting Measures
【Flash Point】122℃
【Fire Fighting】Wear a self-contained breathing apparatus in pressure-demand, MSHA/NIOSH (approved or equivalent), and full protective gear. During a fire, irritating and highly toxic gases may be generated by thermal decomposition or combustion. To extinguish fire, use water, dry chemical, chemical foam, or alcohol-resistant foam.
【Upper exp. limit】20.3
【Lower exp. limit】2.7

Accidental Release Measures
【Small spills/leaks】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.

Stability and Reactivity
【Disposal Code】4
【Stability】Stable under normal temperatures and pressures.
【Incompatibilities】Strong oxidizing agents, acids, bases, alcohols, amines, moist air or water.
【Decomposition】Carbon monoxide, irritating and toxic fumes and gases, carbon dioxide.

Transport Information
【HS Code】2917 19 90