Item |
Specification |
Result |
Appearance |
A White or white crystal powder |
White crystalline powder |
Melting Point |
163.0 ~ 167.0 |
Conforms |
Heavy Metals |
≤10ppm |
1.2 ppm |
Chloride |
≤0.02% |
0.005% |
Loss on drying |
≤0.5% |
0.1% |
Residue on lgnition |
≤0.1% |
0.07% |
Chromatographic |
≤0.5% |
Conforms |
Residual solvents |
Methanol≤3000ppm |
Conforms |
Toluene≤890ppm |
Conforms |
|
Xylene≤2170ppm |
Conforms |
|
Acetic acid≤5000ppm |
Conforms |
|
Ethanol≤5000ppm |
Conforms |
|
Loss on Drying |
≤1.0% |
0.12% |
Assay |
98.0%-101.0%(On dried substance) |
99.60% |