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Molecular weight：138.07
CAS NO:1034-88-5
Appearance：Colorless hygroscopy crystalline granular
Usage：It can be used as analytical reagent, disinfectant, acidity regulator, textile dyeing auxiliary and plating additives, etc.
Index：Highest impurity content is counted by %
|
Name |
Analytically pureAR |
Chemical pureCP |
High purity |
Industrial superior |
| Content | 98.5-100.0 | 98.5-100.0 | ≥98.0 | 93.0-98.0 |
| Water insoluble | ≤0.005 | ≤0.02 | ≤0.03 | ≤0.05 |
| Chloride（Cl） | ≤0.001 | ≤0.002 | ≤0.01 | ≤0.05 |
| Nitrate（NO3） | ≤0.001 | ≤0.002 | ------ | ------- |
| Phosphate（PO4） | ≤0.00025 | ≤0.0005 | ------- | ------- |
| Arsenic（As） | ≤0.00005 | ≤0.0001 | 0.0001 | — |
| Calcium（Ca） | ≤0.0025 | ≤0.005 | -------- | — |
| Ferrum(Fe) | ≤0.0002 | 0.0006 | ≤0.005 | ≤0.005 |
| Magnesium（Mg） | ≤0.0004 | ≤0.0012 | -------- | — |
| Heavy metal( counted by Pb) | ≤0.0005 | ≤0.0005 | ≤0.001 | ≤0.01 |
| Silicic acid and chlorine water sediment | ≤0.01 | ≤0.02 | ------- | — |
| Sulfuric acid（H2SO4） | ≥38 | ≥38 |
Packing：Plastic woven bag, kraft bag or fiber can. Net weight is 25kg..
