Maleic Anhydride (CAS 108-31-6)

Maleic Anhydride, also known as cis-Butenedioic Anhydride, is a white crystalline solid with a pungent odor. As a Maleic Anhydride supplier from China, we implement strict production and quality control measures. Each batch is thoroughly tested to ensure consistent chemical composition, low moisture content, and minimal impurity levels, which are crucial for meeting diverse industrial requirements.​

 

 

Our high purity maleic anhydride is produced through advanced refining processes, resulting in exceptional purity levels. It contains very low amounts of contaminants such as fumaric acid, phthalic anhydride, and residual solvents. This high purity ensures excellent stability and reactivity, making it suitable for applications with stringent quality demands. The product is packaged in moisture-resistant containers to prevent hydrolysis and maintain its properties during storage and transportation.​

 

 

For unsaturated polyester resin production, our unsaturated polyester resin maleic anhydride is formulated with consistent reactivity, ensuring it meets the specific requirements of resin synthesis. In alkyd resin manufacturing, alkyd resin manufacturing maleic anhydride is designed to have controlled acidity and purity, which are essential for achieving desired resin properties.​

Pesticide intermediate maleic anhydride undergoes additional purification steps to remove trace impurities that could affect the synthesis of pesticides. All these specialized variants are subjected to rigorous testing to ensure they align with the unique needs of their respective application processes.​

 

 

We offer flexible packaging options for maleic anhydride, including bags and drums, to accommodate different order sizes. Our efficient supply chain ensures timely delivery, and we provide comprehensive product documentation, such as certificates of analysis and safety data sheets, to support our clients' procurement processes. As a reliable Maleic Anhydride supplier from China, we are dedicated to providing quality products and professional service to customers worldwide.​

Maleic anhydride, also known as maleic anhydride, CAS number 108-31-6, is a white crystalline powder or flaky solid with a strong pungent odor. It is easily sublimated and soluble in solvents such as water, acetone, and ether. Its molecular structure contains unsaturated double bonds and anhydride groups, and its chemical properties are active. It is an important organic chemical raw material with wide applications in chemical synthesis, medicine, agriculture, coatings and other fields. ​

Maleic anhydride is an important monomer for synthesizing various polymer materials and plays a crucial role in polymerization reactions. It can copolymerize with monomers such as styrene and butadiene to produce unsaturated polyester resin, which has good mechanical properties and corrosion resistance, and is widely used in the manufacture of fiberglass, coatings, adhesives, etc; By copolymerizing with ethylene, propylene, and other materials, copolymers with specific properties can be obtained for plastic modification, improving the strength, heat resistance, and other properties of plastics. In addition, maleic anhydride can also participate in ring opening polymerization reactions to synthesize polymer materials such as polyether esters, which are applied in fields such as engineering plastics. ​

As an important chemical intermediate, maleic anhydride (MA) can generate a series of derivatives through various reactions. For example, reacting with alcohols to produce maleic esters, these ester compounds can be used as plasticizers, lubricants, fragrance intermediates, etc; Succinic anhydride can be obtained through hydrogenation reaction, which has important applications in fields such as medicine and food additives; The imide compounds generated by reacting with amine compounds can be used to prepare heat-resistant materials, pharmaceutical intermediates, etc., expanding the application scope of chemical products. ​

In the field of agriculture, maleic anhydride can be used to synthesize various pesticides, such as fungicides, herbicides, etc. Pesticides synthesized from it have the characteristics of high efficiency and low toxicity, which can effectively prevent and control crop diseases and pests, and increase crop yields. In the field of medicine, maleic anhydride can be used as an intermediate in the synthesis of some drugs, such as antibiotics and anti-inflammatory drugs. At the same time, its derivatives can play a role in regulating drug efficacy and improving drug stability in drug formulations. ​

Maleic anhydride is an important raw material in the coatings and resin industries. It can be used to produce alkyd resin, which is a commonly used film-forming substance in coatings. It can give coatings good glossiness, adhesion, and weather resistance, and is widely used in furniture paint, industrial paint, etc; In unsaturated polyester coatings, maleic anhydride participates in crosslinking reactions to enhance the hardness and chemical corrosion resistance of the coating, meeting the coating requirements of different scenarios. In addition, it can also be used to prepare water-soluble resins for the production of water-based coatings, which meets environmental requirements. ​

In the paper industry, maleic anhydride can be used for sizing treatment of paper to improve its water resistance and strength; In the textile industry, its derivatives can be used as textile auxiliaries for fabric finishing, improving the hand feel and wrinkle resistance of fabrics. In the laboratory, maleic anhydride is commonly used as a chemical reagent for organic synthesis reactions and analytical experiments, providing support for scientific research work. In addition, it can also be used to prepare surfactants, oilfield chemicals, etc., playing an auxiliary role in related fields. ​