White, odorless granules or crystalline powder. It is soluble in alcohol, slightly soluble in water and in ether, and very slightly soluble in chloroform.
1. Used as food acidifier, has an important role in bacteriostasis and antisepsis.
2. when fumaric acid is used as acidic substance of solid beverage gas producer. product bubbles are persistent and delicate.
3. In parmaceutical industry,It is used for detoxification of sodium dimercaptosuccinate,and production of rich blood iron,and produce unsaturated polyester resin.
|
Item |
Specification |
Result |
|
Appearance |
White crystals or crystalline powder or powders |
White powders |
|
Purity |
≥ 99.5% |
99.60% |
|
Melting point (℃) |
286~302 |
299 |
|
Water content |
≤ 0.3% |
0.13% |
|
Residue on ignition |
≤0.10% |
0.06% |
|
Sulfate |
≤ 0.01% |
<0.01% |
|
Heavy metals (as Pb) |
≤ 10ppm |
<10ppm |
|
Arsenic |
≤ 3ppm |
<3ppm |
|
Color |
≤ 15APHA |
10APHA |
|
Maleic acid |
≤0.1% |
0.02% |
