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|
Test Item |
Standard |
Result |
|
Appearance |
white or almost white, crystalline powder or small, colourless crystals |
Conform |
|
Assay |
98.0~102.0% |
99.7% |
|
Residue on ignition |
not more than 0.2% |
0.10% |
|
Loss on drying |
not more than 1.0% |
0.45% |
|
Related compounds |
not greater than 1.0% |
Conform |
|
Chloride and sulfate |
not greater than 0.06% |
Conform |
|
pH |
6.0~7.5 |
7.3 |
Net 25kg bag,transport by air,sea or land.