Customization: | Available |
---|---|
CAS No.: | 5026-62-0 |
Formula: | C8h7nao3 |
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ITEM |
STANDARD |
RESULTS |
Appearance |
White crystalline powder |
complies |
Purity (on dry base)% |
98.0-104.0 |
99.4 |
PH value(0.1%water liquor) |
9.5-10.5 |
9.8 |
Sulfate(ppm) |
≤300 |
<300 |
Chlorides(ppm) |
≤350 |
<350 |
Loss on drying % |
≤0.50 |
0.09 |
Organic volatile impurities |
Meets BP2000/usp24 standard |
Qualified |
Completeness of solution |
Meets BP 2000/usp24 standard |
Qualified |
Heavy metals (Pb)ppm |
≤10.0 |
<10.0 |
Apprearance of solution |
Clear and transparent |
Qualified |
ITEM |
STANDARD |
RESULTS |
Appearance |
White crystalline powder |
complies |
Purity (on dry base)% |
99-100.5 |
99.89 |
Melting point °C |
69-72 |
70-71 |
Sulphated ash % |
≤0.05 |
<0.03 |
Acidity (mlNaOH0.1M) |
≤0.1 |
0.04 |
Loss on drying % |
≤0.5 |
0.02 |
Residue % |
≤0.10 |
0.05 |
Arsenic (ppm) |
≤1.0 |
<1.0 |
Heavy metals (Pb)ppm |
≤10 |
<10 |
Mercury (mg/kg) |
<1 |
0.056 |
lead (mg/kg) |
<5 |
0.12 |
Clarity and color of solution |
Clear and transparent |
Complies |