Cobalt is the active center of a group of coenzymes called cobalamins. Vitamin B 12, the best-known example of the type, is an essential vitamin for all animals. Cobalt in inorganic form is also a micronutrient for bacteria, algae, and fungi.

2025年1月6日 · Cobalt, metallic chemical element, one of the transition elements, atomic number 27. The metal is used especially for heat-resistant and magnetic alloys. A relatively large percentage of the world’s production goes into magnetic alloys …

Because of its impressive properties cobalt is an important component in wear resistant and corrosive resistant alloys. And cobalt alloys and coatings are seen everywhere from drills to saws, from aircraft turbines to prosthetic bone replacements.

2021年8月17日 · 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 is found as a mixture of two allotropes over a wide ...

Refined or polished cobalt is a silvery white metal and have a faint bluish tinge. Its physical properties resemble iron and nickel. Cobalt is a ferromagnetic (strongest magnet), up to 1121 0 C. Its specific gravity is 8.9. Pure cobalt is obtained through smelting process, which is hard and lustrous and release vapors of arsenic.

Chemical element, Cobalt, information from authoritative sources. Look up properties, history, uses, and more.

2025年1月16日 · Cobalt’s physical properties, including its atomic radius and crystal structure, contribute significantly to its industrial uses. With an empirical atomic radius of 125 picometers and a hexagonal close-packed (hcp) crystal structure, cobalt is …

Properties of Cobalt. The atomic symbol for cobalt is Co. Atoms of cobalt are known to have 27 protons, 27 electrons, and 32 neutrons. Cobalt primarily appears as a hard, breakable metal that looks blue and white in color. Cobalt’s atomic number is 27, of …

- Cobalt is a hard, metallic element symbolized as Co with an atomic number of 27. - This transition metal is crucial for various applications, such as rechargeable batteries, superalloys, and pigments. - As a metal, it is solid at room temperature, silvery-blue in …

Cobalt is a chemical element with atomic number 27 and symbol Co. Know the Uses of Cobalt, Atomic Mass of Cobalt, Chemical Properties of Cobalt & more at BYJU'S.