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单词 cobalt
释义

cobaltn.

Brit. /ˈkəʊbɔːlt/, /ˈkəʊbɒlt/, /ˈkəʊb(ə)lt/, U.S. /ˈkoʊˌbɔlt/, /ˈkoʊˌbɑlt/
Forms: Also 1600s cobolt, 1700s kobold.
Etymology: < German kobalt, formerly also kobald, -olt, -old, -elt, -el, apparently the same word as kobold, etc., goblin or demon of the mines; the ore of cobalt having been so called by the miners on account of the trouble which it gave them, not only from its worthlessness (as then supposed), but from its mischievous effects upon their own health and upon silver ores in which it occurred, effects due mainly to the arsenic and sulphur with which it was combined. From the miners of the Harz or Erzgebirge the name became common German, and thence passed into all the European languages, French cobalt, Italian cobalto, Spanish cobalto, Portuguese cobalto, Dutch, Danish, Russian, Polish, Bohemian, etc., kobalt, Swedish kobolt. See Hildebrand in Grimm s.v., who shows also that the metal was known to Paracelsus (Wks. 1589 VIII. 350), though its discovery is usually credited to Brandt in 1733.
1.
a. One of the chemical elements, a metal of a greyish colour inclining to red, brittle, slightly magnetic; in many respects closely resembling nickel; not found native, but extracted from various ores. Symbol Co.
ΘΚΠ
the world > matter > chemistry > elements and compounds > metals > specific elements > cobalt > [noun]
Co1814
cobalt1863
1863–72 H. Watts Dict. Chem. I. 1039 The use of cobalt for imparting a blue colour to glass, appears to have been known to the Greeks and Romans..Cobalt is not a very abundant metal.
1875 R. Hunt & F. W. Rudler Ure's Dict. Arts (ed. 7) I. 874 Smalt is a kind of glass coloured by oxide of cobalt.
b. The name was originally given to the ores of this metal, and is still applied, with or without defining words, to various native compounds, as tin-white cobalt = smaltine n., CoAs2; grey cobalt., silver-white cobalt. = cobalt-glance n. at Compounds 2; red cobalt = cobalt-bloom n., cobalt-vitriol n. at Compounds 2; earthy cobalt. = asbolan n.
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1683 J. Pettus Fleta Minor (1686) i. 34 Concerning the Cobolt oars, there are many sorts of them.]
1728 J. Woodward Fossils All Kinds 43 Cobalt is plentifully impregnated with arsenick; contains copper and some silver. Being sublimed, the flores are of a blue colour: these, German mineralists call zaffir.
1738 G. Smith Curious Relations II. 440 Zink, Kobold, Sleat, and other Productions of the Mines.
1748 J. Hill Gen. Nat. Hist. I. (J.) From cobalt are produced the three sorts of arsenick, white, yellow, and red; as also zaffre and smalt.
1800 tr. E. J. B. Bouillon-Lagrange Man. Course Chem. I. 397 A kind of cobalt, or arsenic mixed with copper.
2.
a. The blue pigment, also called cobalt-blue n. prepared from this mineral, largely used in staining glass. Also the deep blue colour of this.
ΘΚΠ
the world > matter > colour > named colours > blue or blueness > [noun] > deep blue
powder blue1628
zaffre1662
ultramarine1695
smalt1775
ultramarine blue (or colour)1781
royal blue1782
smalt-blue1794
mazarine blue1803
blue feldspar1804
lazulite1807
cobalt1835
Vienna blue1835
Venetian bluec1840
bleu-de-roi1848
gentian blue1848
gentian1854
mazarine1857
night-blue1865
lapis lazuli1870
Reckitt's blue1877
royal1885
Littler's blue1904
delphine1909
delphinium1923
Madonna blue1932
the world > matter > colour > named colours > blue or blueness > blue colouring matter > [noun] > blue pigment > specific
azurec1374
lapis lazulia1425
litmusc1503
verditer1505
florey1527
bice1548
smalt1558
smalts1591
smalt1598
ultramarine1598
litmus blue1612
verditer1665
ultramarine blue (or colour)1686
blue sublimate1700
Prussian blue1724
terre bleue1728
starch blue1742
king's blue1778
verditel1778
Antwerp brown1787
Berlin blue1794
lacmus1794
Antwerp blue1795
French blue1802
lapis1811
Waterloo blue1815
Waterloo1823
cobalt1835
Thénard's blue1837
iron blue1839
turnsole1839
permanent blue1863
opal blue1880
Haarlem blue1885
cyanine blue1886
cerulean blue1889
Victoria blue1890
Milori blue1899
Prussian1911
Windsor blue1912
gentianine1927
Monastral1936
Alcian Blue1947
1835 G. Field Chromatogr. 110 Cobalt blue is the name now appropriated to the improved blue prepared with metallic cobalt.
1872 H. Watts Dict. Chem. I. 1057 Cobalt-blue..is a compound of protoxide of cobalt and alumina, and is used both as oil and water colour.
1877 A. B. Edwards Thousand Miles up Nile xviii. 503 The mitre-shaped casque being of a vivid cobalt-blue.
1878 W. Black Green Pastures xxxiii. 262 As if some one..had..dashed in a stroke of brilliant cobalt.
b. In this sense used attributively or as adj.
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the world > matter > colour > named colours > blue or blueness > [adjective] > deep blue
flaxen1605
mazarine1684
cyaneous1688
ultramarine1781
powder blue1789
smalt-blue1801
gentian1836
cobalt1849
night-blue1858
lazuline1877
smalt1880
1849 M. Somerville On Connexion Physical Sci. (ed. 8) xix. 181 A dark blue cobalt glass.
1853 E. K. Kane U.S. Grinnell Exped. (1856) xxviii. 237 From a cobalt sky..the moon ‘shineth down alone’.

Compounds

C1. Generalattributive.
a.
cobalt-mine n.
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1858 H. T. Buckle Hist. Civilisation Eng. (1869) II. viii. 539 The celebrated cobalt-mine..in the valley of Gistan in Aragon.
cobalt ore n.
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1875 R. Hunt & F. W. Rudler Ure's Dict. Arts (ed. 7) I. 875 Cobalt speiss..consisting chiefly of arsenide of nickel, derived from nickel associated with the cobalt ore.
b. in chemical compounds
cobalt chloride n.
cobalt fluoride n.
c. in names of colours or pigments prepared from salts of cobalt
cobalt-blue n. (see 2.)
cobalt green n.
ΚΠ
1875 R. Hunt & F. W. Rudler Ure's Dict. Arts (ed. 7) I. 875 Cobalt green..is a compound of oxide of cobalt and oxide of zinc.
cobalt red n.
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1934 H. Hiler Notes Technique Painting ii. 123 Cobalt red, a very durable, but not much-used colour. It works badly.
cobalt ultramarine n.
cobalt violet n.
ΚΠ
1902 Encycl. Brit. XXXI. 772/2 Several mixed cobalt compounds containing arsenates and phosphates of that metal, and represented by cobalt violet.
cobalt yellow n.
ΚΠ
1875 R. Hunt & F. W. Rudler Ure's Dict. Arts (ed. 7) I. 875 Cobalt-yellow, an orange~yellow pigment precipitated from an acidified solution of nitrate of protoxide of cobalt by means of nitrate of potash.
C2.
cobalt-bloom n. [German kobalt-blüthe] a native hydrated arsenate of cobalt, also called erythrite n., occurring in two forms, crystalline and earthy.
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a1773 G. Edwards Elements Fossilogy (1776) 100 Cobalt earth..of a red colour.. named cobalt bloom.
1863–72 H. Watts Dict. Chem. I. 1057 Earthy cobalt-bloom, of peach-blossom colour, is arsenate of cobalt with free arsenious acid.
cobalt bomb n. (a) a container storing radioactive cobalt-sixty (60Co) used in the treatment of cancer; (b) a hydrogen bomb enclosed in a shell of cobalt which, if exploded, disperses radioactive cobalt dust.
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the world > health and disease > healing > medical appliances or equipment > equipment for radiation treatment > [noun]
Kromayer lamp1911
radium needle1915
plaque1919
cobalt bomb1954
society > armed hostility > military equipment > weapon > explosive device > [noun] > bomb > fusion or hydrogen
hydrogen bomb1947
fusion bomb1950
superbomb1950
super1951
cobalt bomb1954
1954 Times 8 Apr. 5/4 At the time Einstein spoke the cobalt bomb, like the hydrogen bomb, was merely a theoretical possibility, but the successful tests of the hydrogen bomb..had brought this theory into the realm of fact.
1958 L. Pauling No More War! vii. 154 The cobalt bomb is a hydrogen bomb or superbomb with a shell of perhaps 1000 pounds of the common metal cobalt about it.
cobalt-bronze n. (see quot. 1875).
ΚΠ
1875 R. Hunt & F. W. Rudler Ure's Dict. Arts (ed. 7) I. 875 Cobalt bronze, a violet-coloured substance, with strong metallic lustre. It consists of phosphate of protoxide of cobalt, and phosphate of ammonia.
1884 Public Opinion 3 Oct. 433/1 Cobalt bronze..is a whiter but slightly more expensive metal than silveroid.
cobalt-crust n. Obsolete an obsolete name for the earthy variety of cobalt-bloom.
ΚΠ
1806 R. Jameson Min. II. 444 This species contains two subspecies: 1. Cobalt Crust. 2. Cobalt Bloom.
cobalt-glance n. [German kobalt-glanz] a native sulpharsenide of cobalt, silver-white, with metallic lustre, also called cobaltite n. or cobaltine n.
ΚΠ
1806 R. Jameson Min. II. 436 Cobalt Glance.
1844 G. Fownes Man. Elem. Chem. 284 This salt may be directly prepared from cobalt-glance, the native arseniuret.
cobalt-mica n. Obsolete = cobalt-bloom.
ΚΠ
1835 C. U. Shepard Treat. Mineral. Cobalt mica.
cobalt-ochre n. Obsolete an obsolete name for asbolan n. and erythrite n.
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1816 R. Jameson Treat. External Characters Minerals (ed. 2) 252 Potters clay..and black-brown cobalt-ochre, which have no lustre, become glistening or shining in the streak.
cobalt oxide n. any oxide of cobalt.
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the world > matter > chemistry > elements and compounds > metals > specific elements > cobalt > [noun] > compounds
xanthocobalt1856
cobaltammine1881
cobalt oxide1903
1903 Jrnl. Chem. Soc. 84 ii. 80 The cobalt oxide which is deposited has the formula Co2O3.
1911 Mining World XXXIV. 71 (title) Use of cobalt oxide for making pigment.
1957 C. W. Mankowitz & R. G. Haggar Conc. Encycl. Eng. Pottery & Porcelain 57/2 Cobalt oxide, a powerful blue colouring material used for staining bodies and glazes from the beginning of the eighteenth century, known and used by John Dwight of Fulham.
cobalt-pyrites n. a name for linnaeite n. a native sulphide of cobalt.
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1844 J. D. Dana Min. Cobalt pyrites.
cobalt-sixty n. see cobalt bomb n. (a).
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1946 Atomic Bomb (Atomic Scientists of Chicago) vii. 36 When bombarded with neutrons, another form of this element is made, called cobalt-60.
1949 Atomic Energy & Life Sci. 90 Sponsored research, and provided radioisotopes, to determine the efficiency of radiocobalt (cobalt 60) as a substitute for radium in the treatment of cancer.
1951 Sci. News Let. 24 Nov. 333 A cobalt 60 ‘bomb’ which promises life-saving treatment for more cancer patients was officially installed at the clinic of the Ontario Cancer Foundation, London, Ont. The cobalt bomb is a small portion of radioactive cobalt 60 enclosed in a heavy lead case.
1954 Ann. Reg. 1953 391 Additions to the powerful equipment for cancer treatment..included a cobalt 60 therapy unit producing X-rays of 3 million electron volts.
cobalt-speiss n. (see quot. 1875).
ΚΠ
1875 R. Hunt & F. W. Rudler Ure's Dict. Arts (ed. 7) I. 875 Cobalt speiss..consisting chiefly of arsenide of nickel, derived from nickel associated with the cobalt ore.
cobalt-vitriol n. a native sulphate of cobalt, also called Bieberite.
ΚΠ
1809 T. Allan Mineral. Nomencl. Cobalt vitriol.
1863–72 H. Watts Dict. Chem. I. 1058 Cobalt-vitriol..is translucent, with flesh-red or rose-red colour and vitreous lustre.
This entry has not yet been fully updated (first published 1891; most recently modified version published online March 2022).
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