Zinc carbonate is white or yellowish fine amorphous powder, smell-less, tasteless.
The bulk density is 4.42-4.45, does not dissolve in water and alcohol, slightly soluble in ammonia, can dissolve in the diluted acid and the sodium hydroxide.
Specification : HG/T2523-93
| ITEMS | INDEX | | High-Class | First-Class | Qualified | | Zn % ≥ | 57.5 | 57.0 | 56.5 | | Loss on ignition | 25.0-28.0 | 25.0-30.0 | 25.0-32.0 | | Pb content % ≤ | 0.04 | 0.05 | 0.05 | | Moisture ≤ | 2.5 | 3.5 | 5.0 | | SO4 % ≤ | 0.60 | 0.80 | - | | Fineness through 75um screen ≥ | 95.0 | 94.0 | 93.0 | | Cd content % ≤ | 0.10 | - | - | |
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Application:
- Rubber industry
- Ceramics
- Fire-proof
- Animal feeds
- Pigments
- Cosmetics and medical ointments
- Desulfurizing agent
