Maleic Anhydride (MA) CAS 108-31-6 Powder Granular Flake Prill

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Maleic Anhydride (MA) CAS 108-31-6 Powder Granular Flake Prill

Maleic Anhydride (MA), also known as cis-butenedioic anhydride, 2,5-furandione, and maleic acid anhydride, is a key chemical intermediate widely used in various industries. Its chemical formula is C₄H₂O₃, and its CAS number is CAS 108-31-6. This product is available in multiple common forms, including powder, granular, flake, and prill, which can meet different application scenarios and transportation requirements of customers.

Product Properties & Physical Characteristics

Maleic Anhydride is a colorless or white crystalline substance with a pungent odor. It is highly reactive due to the presence of anhydride groups in its molecular structure. The following are its main physical properties:

Molecular weight: 98.06 g/mol

Melting point: 52.8 °C (127.0 °F)

Boiling point: 202.0 °C (395.6 °F)

Density: 1.48 g/cm³ at 20 °C

Solubility: Soluble in organic solvents such as acetone, ethanol, and benzene; reacts with water to form maleic acid

Stability: Stable under normal storage conditions, but should avoid contact with strong oxidants, strong bases, and water

Key Product Specifications (Industrial Grade)

Product Applications

Maleic Anhydride is a versatile chemical with a wide range of applications across various industries. Its main uses include:

Polymer Industry: Used as a comonomer in the production of unsaturated polyester resins (UPR), which are widely applied in fiberglass-reinforced plastics, coatings, adhesives, and casting materials. It also participates in the synthesis of copolymers such as polyamides and polyurethanes.

Agrochemicals: A key raw material for the synthesis of herbicides (e.g., glyphosate intermediates), insecticides, and fungicides, playing an important role in protecting crops and improving agricultural yields.

Chemical Intermediates: Used to produce succinic anhydride, fumaric acid, malic acid, and other fine chemicals, which are further used in food additives, pharmaceuticals, and daily chemicals.

Other Fields: Applied in the production of lubricating oil additives, paper sizing agents, and water treatment chemicals, due to its excellent reactivity and compatibility.

Product Compliance & MSDS

The product has completed REACH registration, complying with the European Union's chemical regulatory requirements, ensuring its safety and legality in international trade. For detailed safety information, MSDS download is available to help customers understand handling, storage, and emergency response guidelines.

FAQ

Q: What are the storage conditions for Maleic Anhydride?
A: It should be stored in a cool, dry, and well-ventilated warehouse, away from heat sources, open flames, and water. The packaging should be tightly sealed to prevent moisture absorption and contamination. It should not be stored together with strong bases, oxidants, or food-grade products.

Q: Is Maleic Anhydride harmful to human health?
A: It has a pungent odor and can irritate the eyes, skin, and respiratory tract. Direct contact or inhalation should be avoided. Operators should wear appropriate protective equipment (e.g., goggles, gloves, masks) during handling. For detailed safety precautions, refer to the MSDS.

Q: Can Maleic Anhydride be customized in terms of particle size or packaging?
A: Yes, it can provide customized particle size (such as fine powder or large prill) and packaging (such as 25kg bags, 1000kg big bags) according to customer needs to meet different transportation and application requirements.

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