Product Name
Maleic Anhydride
Chemical Name
Cis-Butenedioic Anhydride
CAS Number
108-31-6
Molecular Formula & Weight
C4H2O3 — 98.06 g/mol
Synonyms
MA, 2,5-Furandione, Toxilic anhydride
About Maleic Anhydride
Maleic Anhydride is a white, crystalline solid with a sharp, irritating odor. It is the cyclic anhydride of maleic acid, produced by the oxidation of benzene or butane. Highly reactive with water and alcohols, it’s a vital intermediate in the synthesis of resins, copolymers, and specialty chemicals used across multiple industries.
Applications / Uses
Maleic Anhydride plays a central role in the production of polymers and additives:
- Unsaturated Polyester Resins (UPR): Used extensively in fiberglass-reinforced plastics, automotive parts, and marine components.
- Lubricant Additives: Reacts with olefins to form dispersants and viscosity index improvers.
- Coatings: Enhances adhesion, hardness, and corrosion resistance in industrial coatings.
- Agricultural Chemicals: Intermediate in the synthesis of pesticides and plant growth regulators.
- Paper Sizing: Used in sizing agents to improve printability and moisture resistance.
- Surfactants: Helps produce specialty surfactants used in detergents and emulsifiers.
Storage & Handling
- Store in a dry, cool, and well-ventilated area in tightly sealed containers.
- Protect from moisture — reacts exothermically with water, releasing heat and maleic acid.
- Wear suitable PPE including gloves, goggles, and dust masks to prevent inhalation and skin contact.
- Ensure proper handling procedures to avoid dust accumulation and static discharge.
