zincum

Zincum is the Latin name for zinc, a chemical element with symbol Zn and atomic number 30. Zinc is a bluish-white metal that is relatively brittle at room temperature but becomes malleable when hot. It resists corrosion by developing a protective oxide layer, ZnO, on its surface. In the periodic table zinc is considered a post-transition metal with an electron configuration [Ar]3d10 4s2.

Zinc occurs mainly in sphalerite (ZnS) and is extracted from sulfide and oxide ores by roasting and reduction. Global production concentrates in China, Peru, Australia, and the United States. The metal is refined through electrolytic and other processes for industrial use.

Uses include galvanizing steel, brass alloys, die casting, and batteries. Zinc oxide is widely used as a pigment, a UV absorber in sunscreens, and a vulcanization agent in rubber. In biology, zinc is an essential trace element for numerous enzymes and transcription factors; deficiency can stunt growth and weaken immunity, while excessive intake or inhalation of zinc oxide fumes can cause toxicity.