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cobalt    音标拼音: [k'ob,ɔlt]
n. 钴,钴类颜料,由钴制的深蓝色

钴,钴类颜料,由钴制的深蓝色

cobalt
n 1: a hard ferromagnetic silver-white bivalent or trivalent
metallic element; a trace element in plant and animal
nutrition [synonym: {cobalt}, {Co}, {atomic number 27}]

Cobalt \Co"balt\ (k[=o]"b[o^]lt; 277, 74), n. [G. kobalt, prob.
fr. kobold, kobel, goblin, MHG. kobolt; perh. akin to G.
koben pigsty, hut, AS. cofa room, cofgodas household gods,
Icel. kofi hut. If so, the ending -old stands for older
-walt, -wald, being the same as -ald in E. herald and the
word would mean ruler or governor in a house, house spirit,
the metal being so called by miners, because it was poisonous
and troublesome. Cf. {Kobold}, {Cove}, {Goblin}.]
1. (Chem.) A tough, lustrous, reddish white metal of the iron
group, not easily fusible, and somewhat magnetic. Atomic
weight 59.1. Symbol Co.
[1913 Webster]

Note: It occurs in nature in combination with arsenic,
sulphur, and oxygen, and is obtained from its ores,
smaltite, cobaltite, asbolite, etc. Its oxide colors
glass or any flux, as borax, a fine blue, and is used
in the manufacture of smalt. It is frequently
associated with nickel, and both are characteristic
ingredients of meteoric iron.
[1913 Webster]

2. A commercial name of a crude arsenic used as fly poison.
[1913 Webster]

{Cobalt bloom}. Same as {Erythrite}.

{Cobalt blue}, a dark blue pigment consisting of some salt of
cobalt, as the phosphate, ignited with alumina; -- called
also {cobalt ultramarine}, and {Thenard's blue}.

{Cobalt crust}, earthy arseniate of cobalt.

{Cobalt glance}. (Min.) See {Cobaltite}.

{Cobalt green}, a pigment consisting essentially of the
oxides of cobalt and zinc; -- called also {Rinman's
green}.

{Cobalt yellow} (Chem.), a yellow crystalline powder,
regarded as a double nitrite of cobalt and potassium.
[1913 Webster]

cobalt
Symbol: Co
Atomic number: 27
Atomic weight: 58.993
Light grey transition element. Some meteorites contain small amounts of
metallic cobalt. Generally alloyed for use. Mammals require small
amounts
of cobalt salts. Cobalt-60, an artificially produced radioactive isotope
of Cobalt is an important radioactive tracer and cancer-treatment agent.
Discovered by G. Brandt in 1737.


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  • Cobalt - Wikipedia
    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 The free element, produced by reductive smelting, is a hard, lustrous, somewhat brittle, gray metal
  • Cobalt | Uses, Properties, Facts | Britannica
    cobalt (Co), chemical element, ferromagnetic metal of Group 9 (VIIIb) of the periodic table, used especially for heat -resistant and magnetic alloys
  • Cobalt - Element information, properties and uses | Periodic Table
    Element Cobalt (Co), Group 9, Atomic Number 27, d-block, Mass 58 933 Sources, facts, uses, scarcity (SRI), podcasts, alchemical symbols, videos and images
  • Cobalt Boats | Performance and Luxury in Boating
    Explore a stunning selection of standout performance and luxury boats from Cobalt, made from superior quality and construction for boat enthusiasts everywhere
  • about whats cobalt? ~ cobalt
    cobalt helps you save anything from your favorite websites: video, audio, photos or gifs just paste the link and you’re ready to rock! no ads, trackers, paywalls, or other nonsense just a convenient web app that works anywhere, whenever you need it
  • Cobalt Uses - Cobalt Institute
    Explore the complete cobalt life cycle, from its extraction in mines to its crucial role in batteries and sustainable recycling methods
  • Carbon2Cobalt | Effortlessly Cool Mens and Womens Clothes, Shirts . . .
    Carbon2Cobalt determines the most efficient shipping carrier to meet the delivery option you select Once your order ships, we will email you the tracking details including courier and tracking information Unless otherwise stated, our garments have what we’d call an easy, classic fit
  • Understanding Cobalt: Properties, Uses, and Applications
    - 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 color, and has magnetic properties
  • What is Cobalt Used For? Exploring its Uses and Properties
    Cobalt, a transition metal with remarkable properties, plays a vital role in numerous industries From powering our devices to enhancing structural integrity, cobalt’s versatility makes it indispensable in modern technology and manufacturing
  • Cobalt (Co) - Definition, Preparation, Properties, Uses, Compounds . . .
    With detailed examples, we’ll explore how cobalt’s unique properties fuel advancements in electronics, healthcare, and sustainable energy Dive into the vibrant world of cobalt and discover its critical contributions to innovation and environmental sustainability





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