Fumaricacid(1).MolecularFormula:C4H4O4Molecularweight:116（2）Performanceanduse:whitecrystal,fruitsourness,burnItismainlyusedasmaterialofpolyesterresinandalkydresin.Itcanproducebondwithethylene-vinlacetatecopolymer,alsocanbeusedassournesspowderinfood,drinkandchemicalmaterial.Thecompanycanproduce2000t***peryearofit,infrontofnationalsameindustry,theproductexportstoJapan,Koreaandothers.(3).Physicalandchemicalspecificati***：Item:excellent,onegrade,acceptablewater（%）：≤0.20.51.0Color（APHA）：≤3050whitecrystalcontent（%）：≥99.599.098.0；meltingpoint：287℃；relativedensity（d204）：1.635)