99.99% High Purity Zinc Zn Metal Wire , 0.8mm – 3.0mm for Scientific Research Purity: Zn≥99.99%. The chemical symbol of zinc is Zn, its atomic number is 30, and its relative atomic mass is 65. The chemical properties of zinc are lively. When the temperature reaches 225°C, zinc is violently oxidized. byJuly 4, 2026