Zinc
Zinc, represented by the symbol Zn and atomic number 30, is a chemical element. It exhibits slight brittleness at room temperature and presents a silvery-greyish appearance upon removal of oxidation.
Zinc ingots are valued for their high density and are among the most cost-effective metallic forms, suitable for various general applications.
Ranked as the fourth most commonly used metal, zinc trails behind iron, aluminum, and copper in terms of usage. Its annual production amounts to approximately 13 million tones. Mining accounts for about 70% of global zinc production, while the remaining 30% is sourced from recycling secondary zinc. Commercially pure zinc, often referred to as Special High Grade (SHG), boasts a purity of 99.995%.
Here is SHG grade chemical analysis :
| Component | Guaranteed Content | HZL Typical |
|---|---|---|
| Zinc (Zn) | 99.9950% Min | 99.9960% Min |
| Lead (Pb) | 0.0030% Max | 0.0020% Max |
| Copper (Cu) | 0.0010% Max | 0.0003% Max |
| Cadmium (Cd) | 0.0030% Max | 0.0002% Max |
| Iron (Fe) | 0.0020% Max | 0.0010% Max |
| Aluminium (Al) | 0.0010% Max | 0.0001% Max |
| Tin (Sn) | 0.0010% Max | 0.0001% Max |