This white crystalline compound is one of two isomeric unsaturated dicarboxylic acids, the other being maleic acid, wherein the carboxylic acid groups are cis. It has a fruit-like taste. The salts and esters of fumaric acid are known as fumarates.
Purity: 99.5%-100.5% (anhydrous basis)
|
No. |
Item |
Standard(BP98) |
Test Result |
|
1 |
Appearance |
super fine white powder |
Complies |
|
2 |
Purity (total acid) |
≥99.0% |
99.60% |
|
3 |
Water content |
≤0.30% |
0.25% |
|
4 |
DSS |
≤0.30% |
0.15% |
|
5 |
Melting point |
286-289 |
290 |
|
6 |
Ash content |
≤0.03% |
0.01% |
|
7 |
Chroma (in 5% ethanol) |
≤15Hazen |
12Hazen |
|
8 |
Heavy metal (base on Pb) |
≤10PPM |
8PPM |
|
9 |
Arsenic (base on As) |
≤3PPM |
2PPM |
|
10 |
Solubility ( |
≥ |
|