Test specifications (analytically reagent):
Assay: ≥99.0
pH (50g/L, 25°C): 5.0-8.0
Sol. clarity clear
Water insoluble matter: ≤0.005%
Weightlessness of burned: ≤0.2%
Chloride: ≤0.001%
Phosphate: ≤0.001%
Nitrogen content: ≤0.0005%
Potassium: ≤0.01%
Calcium: ≤0.002%
Iron: ≤0.0005%
Heavy metal: ≤0.0005%
Test specifications (technical grade):
Assay: ≥99.3%
whiteness: ≤80%
Water insoluble matter: ≤0.05%
Chloride: ≤0.12%
magnesium: ≤0.10%
Iron: ≤0.002%
Moisture: ≤0.10%
Packing:
500g/bottle, or according to the customers' requirements
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