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Items
|
Specifications
|
Appearance
|
White Crystalline Powder
|
Assay, %
|
98.0 ~ 102
|
pH
|
4.5-7.0
|
Loss on Drying, %
|
≤0.5
|
Residue on Ignition, %
|
≤0.5
|
Chloride, %
|
≤0.018
|
Sulphate, %
|
≤0.025
|
Heavy Metals (As Pb), ppm
|
≤5
|
Arsenic (As), ppm
|
≤1
|
Calcium, %
|
≤0.0050
|
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