Zinc
Metallic chemical element, chemical symbol Zn, atomic number 30.
Metallic chemical element, chemical symbol Zn, atomic number 30.
Zinc is a bluish silver metal, ductile when very
pure but brittle otherwise. It forms brass (with copper) and many other alloys.
Its major use is in galvanizing iron, steel, and other metals. Zinc is an
essential trace element, particularly in red blood cells; in snails, it
corresponds to iron in the blood of vertebrates. Zinc oxide is used as a
pigment, ultraviolet light absorber (to prevent sunburn), dietary supplement
and seed treatment, and photoconductor. Zinc's many other compounds (in which
it has valence 2 or, rarely, 1) are used in industrial and consumer
applications, including as pesticides, pigments, mordants (see dye), fluxes,
and wood preservatives.
Source:britannica encyclopedia
