Detailed Product Description1,Maleic Anhydride is mainly used for making Unsaturated Polyester Resin,.and other industries. 2,Content 99.5%min. Molecular Formula: C4H2O3Molecular Weight: 98.02Property:It is white grain or piece substance with pungent ordor. In open air it easily becomes. Into meleic acid which is rather corrosive. It dissolve in acetone, erher,ethyl acelate, etc.Usage:It used in production of unsaturated polyester resin. It also is used in coating, pharmaceutics, agricultural, surfactant, additive of plastics, etc. It is main material of binary acid with four carbons, 1,4-butanediol r-butyrolactone, tetrahydrofuran. Content 99.5%min. Melting chromaticity (Pt.Co.) 25max.Freezing point 52.4min.Ash 0.005%max.Iron 5mg/kg max.Package: Packed in plastical woven, lined with PE bag,25kg per bag. 20MT/1X20`FCL