Zinc Carbonate
Zinc Carbonate Basic
Molecular formula: ZnCO3.2Zn(OH)2.H2O
Molecular weight: 324.15
keyword：
convenient transportation
Zinc Carbonate
CAS NO.： 5970-47-8；3486-35-9; 10476-83-2
Molecular formula: ZnCO3.2Zn(OH)2.H2O
Molecular weight: 324.15
Properties: White or yellowish fine amorphous powder, smell-less, tasteless. The proportion 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: as per Standard of HG/T2523-2016
| ITEMS | INDEX | ||
| High-Class | First-Class | Qualified | |
| Zn, % ≥ | 57.5 | 57.0 | 56.5 |
| Loss on dry, % | 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 75 um Screen ,%≥ | 95.0 | 94.0 | 93.0 |
Application:
Basic zinc carbonate is used as skin protection agent in medicine, zinc supplement in feed and synthesis of high purity zinc stearate.
It can also be used as desulfurizer and pore forming agent in catalyst industry. In rubber products, because the refractive index of zinc carbonate is close to that of rubber, it is specially used as transparent rubber products and EVA foaming accelerator。
Package: 25 kg PP woven bags with PE liner, Or 1000kg Jumbo Bags.
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