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 cobalt ['kәubɒ:lt]   添加此单词到默认生词本
n. 钴, 钴类颜料

[化] 钴Co

[医] 钴(27号元素)


  1. Cobalt of standard solution is used as titrant.
    以钴标准溶液为滴定剂,铂电极为指示电极,甘汞电极作为参比电极,利用电位的突变来指示终点。
  2. The name used by the Cobalt server to identify the user.
    服务器用这个名字来区别用户。
  3. Trim numbers with H have cobalt alloy hardfaced seat ring facing.
    带有H的阀内件型号具有钴合金硬面阀座环表面。


cobalt
[ noun ]
a hard ferromagnetic silver-white bivalent or trivalent metallic element; a trace element in plant and animal nutrition
<noun.substance>


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.

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.

2. A commercial name of a crude arsenic used as fly poison.

{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.

  1. The Mine, Mill and Smelter union represents about 1,600 workers at the Sudbury operation, which produces about 75 million pounds of nickel, 75 million pounds of copper and five million pounds of cobalt annually.
  2. The same applies to cobalt.
  3. Canada has pioneered the development of food irradiation equipment, partly because of a ready supply of the radioactive isotope cobalt 60, which is produced in the country's Candu-type nuclear power plants.
  4. The price of nickel realised during the quarter fell by 16 per cent to Dollars 2.93 per pound, while copper, cobalt and rhodium prices were also lower. However, unit production costs for nickel were 9 per cent lower in the second quarter.
  5. Irradiation, exposing foodstuffs _ especially meats _ to radioisotopes such as cobalt 60 and cesium 137, has been proposed as a food preservation method since at least the early 1960s.
  6. A smaller proportion of cobalt is combined with nickel in other jet engine alloys, Mr. Johnston says, and titanium is an important material for fan and compressor sections.
  7. But stocks of cobalt will only be released for defense purposes and won't be sold if there is a shortage in the markets, the officials say.
  8. Four Belgian companies _ all controlled by Societe Generale _ now are drawing a net benefit from Zaire of about $300 million a year, largely through mining and refining of Zairean copper, diamonds and cobalt.
  9. In mid-1978, political instability in Zaire threatened to cut off nearly a third of the world's supply of cobalt, which is used to toughen steel.
  10. It also supplies much of the world's cobalt 60, a radioisotope commonly used in cancer therapy and commercial radiation.
  11. Elmer Fike is a 70-year old man with eyes the color of cobalt.
  12. The water can be recycled for manufacturing; the metal-laden sludge is trucked to a UNC plant in Mulberry, Fla., where individual metals such as copper, chrome, cobalt and nickel are reclaimed.
  13. Military suppliers could encounter a shortage of cobalt when they begin buying metal, dealers say.
  14. Eighteen-inch long rods containing either cobalt 60 or cesium 137 treat the foods without raising their temperature.
  15. The mines bureau also said that cobalt supplies would remain available from Zaire if new routes for shipping it were developed to bypass South African railways and ports.
  16. Thus all pressure will be for a further hike in prices.' He says last year's cobalt price rise resulted from shortfalls in African production for some years.
  17. In the gigabit demonstration at IBM's Almaden Research Center in San Jose, an aluminum disk was coated with a thin film of a magnetic cobalt alloy, which held the recorded bits.
  18. Mr. Berg's background did little to recommend him for the job: seven years of rabbinical-school training followed by a year trading cobalt.
cobalt
cobalt (Co)
cobalt 57
cobalt 60
cobalt 60 therapy unit
cobalt acetat
cobalt acetate
cobalt alloy
cobalt aluminate
cobalt aurate membranes
cobalt benzoate
cobalt black
cobalt bloom
cobalt blue
cobalt blue glass
cobalt blue glaze
cobalt blue pigment
cobalt bomb
cobalt bronze
cobalt brown
cobalt carbonate
cobalt carbonyl
cobalt chloride
cobalt chromium alloy
cobalt chromium alloy...
cobalt complex
cobalt complex dye
cobalt compound
cobalt concentrate
cobalt crust
cobalt deposit
cobalt dichloride
cobalt dioxide
cobalt disulfide
cobalt drier
cobalt dryer
cobalt edetate
cobalt effect
cobalt enamel
cobalt ferrite
cobalt ferrite tape
cobalt Fischer-Tropsc...
cobalt fisher-tropsch...
cobalt glance
cobalt glass
cobalt green
cobalt high speed steel
cobalt hydrate
cobalt hydrosulfide
cobalt hydroxide
cobalt hydroxychloride
cobalt ion
cobalt isotope
cobalt lead crystal g...
cobalt linoleate
cobalt lustre
cobalt matte
cobalt metasilicate
cobalt mineral
cobalt molybdate
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