| ≥1 piece |
|
ITEM |
STANDARD |
RESULTS |
|
Appearance |
White crystalline powder |
C onforms |
|
Identification |
Conforms |
C onforms |
|
Heat Stability |
Not change in color after heating For 90 minutes at 105 °C |
Pass |
|
Odor |
Slight characteristic odor |
C onforms |
|
Purity |
99.0-101.0% |
99.9% |
|
Water |
≤0.5% |
0.34% |
|
Melting Range ( °C ) |
132-135 |
132.8-134.0 |
|
Residue o n Ignition |
≤0.2% |
0.05% |
|
Aldehydes ( a s Formaldehyde) |
0.1% Max |
0.005% |
|
Lead (Pb) |
≤5 mg/kg |
C onforms |
|
Arsenic (As) |
≤2 mg/kg |
C onforms |
|
Mercury (Hg) |
≤1 mg/kg |
C onforms |
|
H eavy Metals ( a s P b ) |
≤10 mg/kg |
C onforms |