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Physical and chemical indicators：
Main content | Appearance | Loss on drying | lead（Pb） | Arsenic （As） | Trimethylamine residue |
≥98% | white crystalline particles | ≤0.5% | ≤10mg/kg | ≤2mg/kg | ≤300ppm |
≥96% | White to slightly yellow crystalline particles | ≤2.0% | ≤10mg/kg | ≤2mg/kg | ≤300ppm |
≥95% | White to slightly yellow crystalline particles | ≤2.0% | ≤10mg/kg | ≤2mg/kg | ≤300ppm |
Physical and chemical indicators：
Main content | Appearance | Loss on drying | lead（Pb） | Arsenic （As） | Trimethylamine residue |
≥98% | white crystalline particles | ≤0.5% | ≤10mg/kg | ≤2mg/kg | ≤300ppm |
≥96% | White to slightly yellow crystalline particles | ≤2.0% | ≤10mg/kg | ≤2mg/kg | ≤300ppm |
≥95% | White to slightly yellow crystalline particles | ≤2.0% | ≤10mg/kg | ≤2mg/kg | ≤300ppm |
