Anhydrides  CAS：108-31-6

Anhydrides for use

【 Purpose 1 】Used for the production of 1, 4-butanediol, gamma-butanolactone, tetrahydrofuran, succinic acid, unsaturated polyester resin, alkyd resin and other raw materials, also used in medicine and pesticides.

【 Purpose 2 】Act as a collector in metal beneficiation.

【 Purpose 3 】Used in organic synthesis, but also as a synthetic fiber intermediate.

【 Purpose 4 】Maleic anhydride is an important basic raw material of unsaturated organic anhydride. It is used in the production of pesticides to synthesize diethyl malathion, the intermediate of organophosphorus insecticide, diethyl maleate, 1-phenyl-3, 6-dihydroxypyridazine, and the intermediate of pyrethroid insecticides, thrthrin, fungicide, and corzidan. In addition, Also used in the production of unsaturated polyester resin, ink additives, paper additives, coatings and pharmaceutical industry, food industry, etc.

【 Purpose 5 】Mainly used for the production of unsaturated polyester resin, alkyd resin, pesticide malathion, high efficiency and low toxicity pesticide 4049, long-acting iodide raw materials. Also coatings, maleic rosin, polymaleic anhydride, maleic anhydride - styrene copolymer. It is also an organic chemical raw material for the production of ink auxiliaries, papermaking auxiliaries, plasticizers and tartaric acid, fumaric acid and tetrahydrofuran.

【 Purpose 6 】Maleic anhydride is mainly used in the synthesis of unsaturated polyester esters, which are used in the manufacture of automotive parts, ships, corrosion resistant chemical equipment and daily necessities. Maleic anhydride is also an important intermediate in the production of lubricating oil additives, coatings, pesticides, fumaric acid, copolymers, food additives and so on.