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dl malic acid
Common name: Trans-Butenedioic Acid
CAS No. : 110-17-8
Grade: industrial and Food grade
Description: White odorless powder or crystalline solid particles, with speical sourness that is as strong as 1.5 times of citric acid. It is soluble in ethanol (5.76g/100g,30Celsius system) , slightly soluble in water (0.63g/100ml,25Celsius system) and in ether, and very slightly soluble in chloroform. It has no hygroscopicity, and will sublime at 200Celsius system. Boiling point: 290Celsius system (decompose) . It will turn to malefic anhydride at 230Celsius system, and will generate DL-malic acid if boiled with water.
Purity (base on C4H4O4) % 99.50~100.50 (dry basis)
Heavy metal (base on Pb) <= 10 PPM
Arsenic (base on As) <= 3 PPM
Water content <= 0.5 %
Melting range 286~302 Celsius system
Residue on ignition <= 0.1 %
Chroma (in 5% ethanol) <= 15 #
Malic acid <= 0.1 %
Fumaric acid has bacteriostatic and antiseptic function. It 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. It 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. 18 MT/20'FCL (with pallet) or 20MT/20'FCL (without pallet) .