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[Chemical Knowledge]：Uses and applications of maleic anhydride

Read： 476 Time：17months ago Source：Transform the World with Simplicity

Maleic anhydride (Maleic Anhydride) is a four-membered ring organic compounds, chemical formula C4H2O3, is an important organic chemical raw materials. It has a variety of uses and application areas.

1. for the manufacture of a variety of resin

maleic anhydride as raw material synthesis of polyimide resin, epoxy resin, unsaturated polyester resin, etc., in the construction, aviation, automotive, electronics and other manufacturing fields are widely used. Their main characteristics are heat resistance, corrosion resistance, insulation, wear resistance and high strength.

2. Used in the manufacture of dyes and pigments

maleic anhydride can be directly reacted with amide, aromatic amine and other compounds to obtain a variety of new dyes and pigments, widely used in textile, printing, paint and other fields. Some of these dyes and pigments have high color fastness, good saturation, and are not easy to fade.

3 for the manufacture of pharmaceutical intermediates

maleic anhydride is an important derivative of maleate (Maleic acid esters), it can be used as a lubricant, can also be used as antifungal drugs, analgesics, sleeping pills and other pharmaceutical intermediates, has a wide range of applications.

4. used in the manufacture of plant growth regulator

by maleic anhydride and ethanol reaction, can be prepared a bioactive substance-acrylate (Acrylates). It is a plant growth regulator that can promote crop growth, improve yield and quality.

5. used in the field of environmental protection

maleic anhydride can be used to treat waste water, waste gas, waste residue and other environmental pollutants. For example, the reaction between maleic anhydride and ammonia can generate maleic anhydride amide, which is used to treat nitrogen compounds in wastewater; the reaction between maleic anhydride and styrene can produce styrene maleic acid ester copolymer, which is used to treat VOCs (volatile organic compounds) in exhaust gas.

Generally speaking, maleic anhydride is widely used in organic chemical industry, construction, aviation, automobile, electronics, textile, printing, paint, medicine, agriculture and other fields. In the future, with the continuous development of science and technology, the use and application of maleic anhydride will continue to expand.