Zinc carbonate basic
1. No Cheat. Factory visit, SGS Test 2. 10 year's produce experience,best quality
1. No Cheat. Factory visit, SGS Test2. 10 year's produce experience,best quality
Items | Index | ||
Best quality product | First quality product | Qualified product | |
Main content(Zn dry basis) % ≥ | 57.5 | 57.0 | 56.5 |
Ignition loss % | 25.0-28.0 | 25.0-30.0 | 25.0-32.0 |
Heavy metal(Pb) content % ≤ | 0.04 | 0.05 | 0.05 |
Moisture % ≤ | 2.5 | 3.5 | 5.0 |
Sulfate(SO4 ) % ≤ | 0.60 | 0.80 | |
Fineness through the 75um mesh % ≥ | 95.0 | 94.0 | 93.0 |
Cadmium(Cd) % ≤ | 0.10 | -- | 0.003 |
Zinc carbonate basic
