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edit. | references. Cobalt is a chemical element; it has symbol Co and atomic number 27. As with nickel, cobalt is found in the Earth's crust only in a chemically combined form, save for small deposits found in alloys of natural meteoric iron.
May 23, 2024 · In animals, cobalt is a trace element essential in the nutrition of ruminants (cattle, sheep) and in the maturation of human red blood cells in the form of vitamin B 12, the only vitamin known to contain such a heavy element. With few exceptions, cobalt ore is not usually mined for the cobalt content.
Dec 21, 2023 · Cobalt is a metal that produces a blue pigment. It's essential for making many of the batteries powering phones, computers, and electric vehicles, but mining it is linked to human rights abuses...
Radioactive cobalt-60 is used to treat cancer and, in some countries, to irradiate food to preserve it. Biological role. Cobalt is an essential trace element, and forms part of the active site of vitamin B12. The amount we need is very small, and the body contains only about 1 milligram.
Explore the multifaceted world of cobalt, a transition metal with a rich history and wide-ranging applications. Dive into its physical and chemical properties, discover its role in various industries like battery production, aerospace, and healthcare, and learn about its biological importance as a trace element.
Cobalt is transition metal and was discovered in pure form in 1735. It is essential part of vitamin B 12. Its compounds are known as cobalt blue used to color pottery and glass. History and Discovery. Cobalt has been used as a coloring agent since Bronze Age. It has been found in Egyptian statuettes and in Persian jewelry of the 3 rd millennium ...
Aug 17, 2021 · Properties. Cobalt has a melting point of 1495°C, boiling point of 2870°C, specific gravity of 8.9 (20°C), with a valence of 2 or 3. Cobalt is a hard, brittle metal. It is similar in appearance to iron and nickel. Cobalt has a magnetic permeability around 2/3 that of iron.
cobalt, Metallic chemical element, one of the transition element s, chemical symbol Co, atomic number 27. Widely dispersed in small amounts in many minerals and ores, this magnetic, silvery white metal with a faint bluish tinge is used mostly for special alloys (e.g., alnico, tool steel) with exacting applications.
The trihydroxide Co (OH) 3 is heated to form the oxide and then reduced with carbon (as charcoal) to form cobalt metal. 2Co (OH) 3 (heat) → Co 2 O 3 + 3H 2 O. 2Co 2 O 3 + 3C → Co + 3CO 2. This WebElements periodic table page contains the essentials for the element cobalt.
