It can be used as the raw material of light convergence and rubber products. It can also be used in compounding calamine and as
Molecular Formula:ZnCO3.2Zn(OH)2.H2O
Molecular Weight: 342.15
Property: White, tiny and shapeless powder, odorless and tasteless. Its specific weight is 4.42-4.45, insoluble in water and alcohol, slightly soluble in ammonia, soluble in dilute acid and sodium hydroxide.
Quality Standard: Chemical Industry Standard of People's Republic of China HG/T 2523-93
Item | Index | ||
High-class Product | First-class 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 |
Content of Heavy Metal ( of pb)≤ | 0.04 | 0.05 | 0.05 |
Water Content≤ | 2.5 | 3.5 | 5.0 |
Content of Sulphate (SO4)≤ | 0.60 | 0.80 | |
Fineness Passing Through 75μm Sieve ≥ | 95.0 | 94.0 | 93.0 |
Content of Cadmium (Cd)≤ | 0.10 | ||
