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We Can Provide
- 1. We can provide mixed containers with different mixed items in one container.
- 2. We will control the quality, and offer free samples for test before shipment. After shipment we will keep the samples for 3 years.
- 3. We can arrange shipment promptly with professional documents.
- 4. We can make the packages as your request and send you photos before shipment.
- 5. BBK shipment is available.
molecular formula：ZnCO3·2Zn(OH)2·H2O
| Items | Indexes | ||
| Class 1 | Class 2 | Class 3 | |
| Appearance | White powder | ||
| main contentt（ Zn ）≥％ | 57.5 | 57 | 56.5 |
| loss on ignition ％ | 25-28 | 25-30 | 25-32 |
| heavy metals ≤％ | 0.04 | 0.05 | 0.05 |
| water ≤％ | 2.5 | 3.5 | 5 |
| Sulphate ≤％ | 0.6 | 0.8 | - |
| Degree (via 75um screen)≥% | 95 | 94 | 93 |
| Cd≤％ | 0.02 | 0.05 | - |
Usage: Basic zinc carbonate can be used to make latex film products, pigments, rayon, catalytic desulfurizers, and medicinally as light astringents, preservatives, disinfectants and skin protectants.
