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Fumaric Acid
Name: Fumaric Acid
Chemical Name: Trans-butenedioicacid
Molecular Formula: C4H4O4
Molecular Weight: 116.07
CAS NO.: 110-17-8
Structural Formula: 
Properties: White odorless powder or crystalline solid particles, with speical sourness that is as strong as 1.5 times of citric acid. Fumaric acid is soluble in ethanol (5.76g/100g,30℃), slightly soluble in water (0.63g/100ml,25℃) and in ether, and very slightly soluble in chloroform. Fumaric acid has no hygroscopicity, and will sublime at 200℃. Boiling point: 290℃ (decompose). Fumaric
acid will turn to maleic anhydride at 230℃, and will generate DL-malic acid if boiled with water.
Fumaric acid was first prepared from succinic acid. A traditional synthesis involves oxidation of furfural using chlorate in the presence of a vanadium-based catalyst. Currently, industrial synthesis of fumaric acid is mostly based on catalytic isomerisation of maleic acid in aqueous solutions at low pH. Maleic acid is accessible in large volumes as a hydrolysis product of maleic anhydride, produced by catalytic oxidation of benzene or butane.
Fumaric Acid Solubility: (Unit: g/100g)
25 oC water |
0.7 |
26 oC ethanol |
5.76 |
27 oC xylene |
0.03 |
Fumaric Acid Specification: (FCCIV, 1996)
Item |
Unit |
Fumaric acid 99.5% |
Purity (base on C4H4O4) |
% |
99.50~100.50 (dry basis) |
Heavy metal (base on Pb) |
PPM |
≤ 10 |
Arsenic (base on as) |
PPM |
≤ 3 |
Water content |
% |
≤ 0.5 |
Melting range |
oC |
286~302 |
Residue on ignition |
% |
≤ 0.1 |
Chroma (in 5% ethanol) |
# |
≤ 15 |
Maleic acid |
% |
≤ 0.1 |
Fumaric Acid Usage:
Fumaric acid has bacteriostatic and antiseptic function.Fumaric acid can be used as acidulant, acidity regulator, acidifier, thermal-oxidative resist auxiliary, curing accelerant and spice. Widly used in producing various carbonic acid drink, wine, concentrated solid drink, ice cream and other cold foods and drink.Fumaric acid can replace malic acid, citric acid, for its acidity degree is 1.5 times of that of citric acid.Fumaric acid can be used as pharmaceutical intermediate and optical bleaching agent, also used in manufacturing unsaturated polyester resin.
Package:
25kg net in plastic woven bag lined with PE bag. 18MT/20'FCL (with pallet) or 20MT/20'FCL (without pallet). 500kg-1000kg container bags of all specifications are available.