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The East of the 16km of Weixu Road Fangzi District WeiFang Shandong,China
M.P: +86-15169548857
+86-13406612349
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E-mail: sales@hfzinc.com
1. ZnSO4·7H2O，Molecular Weight:179.47, Solidifying Proportion:1.957g/cm3.It is a colorless acicular or powdery crystal,soluble in water.
ZnSO4·H2O，Molecular Weight:287.56,Solidifying Proportion:3.31g/cm3. It is white liquid powder, soluble in water.
2. Main Use: ZnSO4.7H2O: Used for animal feeding-stuffs additive,Food supplement, Medicine,Printing and dyeing auxiliaries,Water treatment.
ZnSO4.H2O: Used for raise livestock,agriculture and industrial (printing and dyeing, electroplate,coal washing and water treatment).
3. Packaging: Woven outer packaging with inner Polyethylene plastic bags (25KGS/50KGS).
National Standard HG/T2326-2015
| Items | Limited | ||||||
| ZnSO4.H20 | ZnSO4.7H2O | ||||||
| Top Grade | First Grade | Qualified | Top Grade | First Grade | Qualified | ||
| Main Content | Zn w/% ≥ | 35.7 | 35.34 | 34.61 | 22.51 | 22.06 | 20.92 |
| ZnSO4·H2O w/% ≥ | 98 | 97 | 95 | - | - | - | |
| ZnSO4·7H2O w/% ≥ | - | - | - | 99 | 97 | 92 | |
| Insolubles w/% ≤ | 0.02 | 0.05 | 0.1 | 0.02 | 0.05 | 0.1 | |
| PH (50g/L Solution) ≥ | 4 | 4 | - | 3 | 3 | - | |
| Chloride w/% ≤ | 0.2 | 0.6 | - | 0.2 | 0.6 | - | |
| Pb w/% ≤ | 0.001 | 0.005 | 0.01 | 0.001 | 0.005 | 0.01 | |
| Fe w/% ≤ | 0.005 | 0.01 | 0.05 | 0.002 | 0.01 | 0.05 | |
| Mn w/% ≤ | 0.01 | 0.03 | 0.05 | 0.005 | 0.05 | - | |
| Cd w/% ≤ | 0.001 | 0.005 | 0.01 | 0.001 | 0.005 | 0.01 | |
| Cr w/% ≤ | 0.0005 | - | - | 0.0005 | - | - | |
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