Maleic Anhydride CAS 108-31-6

1. Maleic anhydride is a key monomer for producing unsaturated polyester resins used extensively in automotive components, construction materials, and corrosion-resistant coatings .
2. Maleic anhydride CAS 108-31-6 serves as a raw material for synthesizing industrial chemicals like tetrahydrofuran, 1,4-butanediol, and succinic acid .
3. Maleic anhydride acts as an excellent dienophile in Diels-Alder reactions and is used to produce maleamic acids, maleimides, and various pharmaceutical intermediates .

1. Store Maleic anhydride in a tightly sealed container in a cool, dry, well-ventilated place, separated from strong oxidants, strong bases, and foodstuffs .
2. Keep Maleic anhydride CAS 108-31-6 away from moisture, as Maleic anhydride reacts slowly with water to form maleic acid and heat .
3. Handle Maleic anhydride using appropriate personal protective equipment including nitrile gloves and tightly fitting safety goggles, and avoid breathing dust or fumes .

1. Isolate the spill area and sweep up solid Maleic anhydride into sealed, labeled containers, moistening first to prevent dusting .
2. Prevent spilled Maleic anhydride CAS 108-31-6 from entering drains or waterways, and wash away residue with plenty of water after collection .
3. Personnel cleaning Maleic anhydride spills must wear suitable protective equipment including P2 filter respirator and dispose of waste according to environmental regulations .

1. Maleic anhydride is corrosive (GHS05, Danger) and causes severe skin burns and serious eye damage (H314), with an NFPA health rating of 3 .
2. Maleic anhydride CAS 108-31-6 may cause allergy or asthma symptoms if inhaled (H334), is harmful if swallowed (H302), and may cause damage to organs through prolonged exposure (H372) .
3. Maleic anhydride is a combustible solid with a flash point of 102-103°C, forms explosive dust-air mixtures, and is classified for transport as a corrosive (UN2215, Hazard Class 8, PG III) .