|
 Properties:
White crystalline powder, odorless, with special sourness
Molecular formula: C4H2Na2O4
Molecular weight: 161.06
Structural formula:
Specification: (FCCIV, 1996)
|
Item |
Index |
|
Appearance |
white odorless crystalline powder |
|
Purity (base on sodium fumarate),% |
98.0－102.0 |
|
Heavy metal (Pb),% |
≤0.002 |
|
Loss on drying,% (120℃,4h) |
≤0.5 |
|
pH (33.3% aqueous solution) |
6-7 |
|
Sulfate (SO4),% |
≤0.01 |
|
Arsenic (As)％ |
≤0.0003 |
|
Lead ％ |
≤0.001 |
|
Maleic acid ％ |
≤0.05 |
Usage:
The material of flavors, polyester resin, mordant and cohesive. |
