|
Items |
Specifications |
|
Appearance: |
White crystals ,crystalline powder |
|
Assay: |
99.0 - 100.5% |
|
Specific Rotation: |
-0.10 o --- +0.10 o |
|
Residue on ignition: |
0.10% max |
|
Water-insoluble substance: |
0.1% max |
|
Fumaric Acid: |
1.0% max |
|
Maleic Acid: |
0.05% max |
|
Heavy metals(as Pb): |
10 ppm max |
|
Arsenic(As) : |
4 ppm max |
