Fumaric acid
(1). Molecular Formula: C4H4O4 Molecular weight: 116
（2）Performance and use: white crystal, fruit sourness, burn
It is mainly used as material of polyester resin and alkyd resin. It can produce bond with ethylene-vinlacetate copolymer, also can be used as sourness powder in food, drink and chemical material. The company can produce 2000 t*** per year of it, in front of national same industry, the product exports to Japan, Korea and others.
(3).Physical and chemical specificati***：
Item: excellent, one grade, acceptable
water（%）： ≤ 0.2 0.5 1.0
Color（APHA）： ≤30 50 white crystal
content（%）： ≥ 99.5 99.0 98.0 ；
melting point ： 287℃；
relative density（d204）： 1.635