| ≥1 piece |
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propertie: |
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white powder and no smell. It can be dissolved in water slightly and dissolved in mine acid and hydrogen oxygenizing alkali. |
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usage : It is used for nutrition strengthening dose and zinc strengthening dose in the food and health product fields. |
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Quality Standard : |
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Item |
QB |
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Assay (Zn3(C6H5O7)2.2H2O) % |
≥98.0 ~ 103 |
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Losing weight while dried% |
≤6.5 |
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Arsenic (As As)% |
≤0.0003 |
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Heavy metal(As Pb)% |
≤ 0.001 |
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Chlorde(CL-)% |
≤0.05 |
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Sulphate(As SO42-)% |
≤0.05 |
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Packing |
25kgs/bag |