
|
Test Items
|
Industrial Grade
|
Food Grade
|
|
Appearance
|
White crystal or powder
|
White crystal or powder
|
|
Purity
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≥98.0%
|
≥99.0%
|
|
Water Solubility
|
Soluble
|
Soluble
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|
Insoluble Matter in Water
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≤0.1%
|
≤0.05%
|
|
pH (1% Solution)
|
7.8 – 8.2
|
7.8 – 8.2
|
|
Heavy Metals (as Pb)
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≤0.001%
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≤0.0005%
|
|
Arsenic
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≤0.0003%
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≤0.0001%
|
|
Ammonium Content
|
Conform to Standard
|
Conform to Standard
|
|
Phosphorus Content
|
Conform to Standard
|
Conform to Standard
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Packing & Delivery







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