Fumaric acid

We are offering fumaric acid. Cas no.: 110-17-8 einecs: 203-743-0
molecular formula: c4h4o4ho2cch=chco2h molecular weight: 116.07
structural formula:
properities:
the density of fumaric acid is 1.64g/cm3. The solubility of fumaric acid in water is 0.63g/100ml. Fumaric acid is white crystalline compound which is one of two isomeric unsaturated dicarboxylic acids, the other being maleic acid, where in the carboxylic acid groups are cis. Fumaric acid has a fruit-like taste. The salts and esters of fumaric acid are known as fumarates.
specification:
item index
asssy(%) 99.5-101.0
loss on drying(%) less than 0.25
rasidue on ignition(%) less than 0.1
melting range(℃) 286-302
heavy metals (pb) (ppm) less than10
colour less than10
arsenic(ppm) less than10
usage:
fumaric acid can be used as pharmaceutical intermediate and optical bleaching agent.
fumaric acid is also used in manufacturing unsaturated polyester resin.
fumaric acid can be used in making coating. L-aspartic acid, l-lactamic acid, malic acid and many auxiliaries.
fumaric acid is used as antistaling agent and anti-mould agent in food industry. Additive amount: 0.25-0.5% used in bread and cake; 0.2-0.4% used in chocolate-made products; below 1% used in jelly, candied fruit and jam; 0.10-0.3% used in sugar and cheese; 0.1-0.25% used in soy sauce.
packing and storage:
fumaric acid is packed in 25kg bag. Fumaric acid should be stored in cool place.
shelf life:
fumaric acid is stored for 1 year in original packages under the described conditions.
keywords：
fumaric acid, (e)-2-butenedioic acid, butenedioic acid, (e)-1,2-ethenedicarboxylic acid, tmeda