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Shanghai Mintchem Development Co., Ltd.
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Click to enlarge image
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Origin |
China |
Model Number |
food grade industry grade |
Brand Name |
shanghai mintchem |
CAS No. |
7681-57-4 |
Purity |
95% |
Quality standard
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Item
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Company standard
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| Assay ( as Na2S2O5 ) % ≥ |
95.0
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| Fe % ≤ |
0.005
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| Clarity |
clear
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| Heavy metal (Pb)% ≤ |
0.001
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| As % ≤ |
0.0002
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