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Item | Index | ||||
I type | II type | III type | |||
Top-grade | First grade | First grade | Qualified product | ||
Mass fraction of ZnCl,%≥ | 96 | 95 | 95 | 93 | 40 |
Mass fraction of acid insoluble matter,%≤ | 0.01 | 0.02 | 0.05 | ||
Mass fraction of basic salt(ZnO),%≤ | 2 | 2 | 0.85 | ||
Mass fraction of sulfate (XSO4),%≤ | 0.01 | 0.01 | 0.05 | 0.004 | |
Mass fraction of Fe,%≤ | 0.0005 | 0.001 | 0.003 | 0.0002 | |
Mass fraction of PB,%≤ | 0.0005 | 0.001 | 0.0002 | ||
Mass fraction of PB,%≤ | 1 | 1.5 | 0.5 | ||
Corrosion test of zinc plate | passed | passed | |||
PH | 3~4 |
Zinc Chloride(zncl2)