| ≥1 piece |
|
Parameters
|
Specification
|
|
Assay
|
99.5-100.5%
|
|
Melting point
|
294 °C -300 °C
|
| maleic acid |
0.10% max
|
|
Water
|
0.50% max
|
|
Residue on ignition
|
0.1% max
|
|
Heavy metals(as Pb)
|
10 ppm max
|
|
Arsenic (As)
|
3 ppm max
|