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cobalt
[ koh-bawlt ]
noun
- a silver-white metallic element with a faint pinkish tinge, occurring in compounds whose silicates afford important blue coloring substances for ceramics. : Co; : 58.933; : 27; : 8.9 at 20°C.
cobalt
/ ˈ°ìəʊ²úɔ˱ô³Ù /
noun
- a brittle hard silvery-white element that is a ferromagnetic metal: occurs principally in cobaltite and smaltite and is widely used in alloys. The radioisotope cobalt-60 , with a half-life of 5.3 years, is used in radiotherapy and as a tracer. Symbol: Co; atomic no: 27; atomic wt: 58.93320; valency: 2 or 3; relative density: 8.9; melting pt: 1495°C; boiling pt: 2928°C
cobalt
/ °ìÅ′²úô±ô³Ù′ /
- A silvery-white, hard, brittle metallic element that occurs widely in metal ores. It is used to make magnetic alloys, heat-resistant alloys, and blue pigment for ceramics and glass. Atomic number 27; atomic weight 58.9332; melting point 1,495°C; boiling point 2,900°C; specific gravity 8.9; valence 2, 3.
- See Periodic Table
˜yÐÄvlog History and Origins
˜yÐÄvlog History and Origins
Origin of cobalt1
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Example Sentences
Another mineral that China imports from DR Congo is cobalt, which is crucial for the lithium battery industry.
Within two decades they will make up almost 90% of the demand for lithium, 70% of the demand for cobalt, and 40% for rare earths, according to the International Energy Agency.
The country is currently the world's largest supplier of cobalt - which has defence and aerospace applications as well as being essential for batteries in electric vehicles - but most of this goes to China.
Minerals found on the deep seabed including manganese, nickel, cobalt, gold and silver are all considered important materials for the green energy transition.
After that wildfire was quelled, experts found that ash contained a myriad of heavy metals, including lead, arsenic, copper and cobalt.
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