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columbium
columbium Chem. (kəˈlʌmbɪəm) [f. Columbia poet. name for America + -ium. So named in 1801 by Hatchett, who discovered it in a specimen of the ore (columbite) brought from Massachusetts.] A metallic element, occurring in columbite and other minerals. Symbol Cb. Now called niobium.1801 Hatchett in Phi...
Oxford English Dictionary
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Columbite
In 1801, Charles Hatchett discovered the element niobium in this specimen, which he named columbium in honour of explorer Christopher Columbus.
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columbic
▪ I. columbic, a.1 Chem. (kəˈlʌmbɪk) [f. columbium + -ic.] Of or pertaining to columbium. columbic acid: the same as niobic acid, q.v.1807 T. Thomson Chem. (ed. 3) II. 251 Nitric acid precipitated the columbic acid. 1882 Avery Elem. Chem. 227 Columbic acid has the composition, HCbO3.▪ II. coˈlumbic,...
Oxford English Dictionary
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Alloy 20
Alloy of the same name with the designation "Cb-3" indicates niobium (also known as columbium) stabilized.
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columbite
columbite Min. (kəˈlʌmbaɪt) [f. columbium + -ite.] The native ore of columbium, a black columbate of iron and manganese; niobite.1805 R. Jameson Min. II. 583 As it does not contain the metal in a metallic state I have..denominated it Columbite. 1809 Wollaston in Phil. Trans. XCIX. 247 In appearance ...
Oxford English Dictionary
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Niobium oxide
Niobium oxide, sometimes called columbium oxide, may refer to:
Niobium monoxide (niobium(II) oxide), NbO
Niobium dioxide (niobium(IV) oxide), NbO2
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pelopium
† peˈlopium Chem. Obs. [mod. L. (H. Rose, 1846), f. Pelops, name of the mythical son of Tantalus: see -ium.] Name given to a supposed new metal found in the mineral tantalite: afterwards discovered to be identical with niobium (columbium). Hence † pelopate [-ate4], a salt of ‘pelopic’ or niobic acid...
Oxford English Dictionary
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columbiferous
columbiferous, a. (kɒlʌmˈbɪfərəs) [f. columbi-um + -ferous.] Yielding or containing columbium.1828 Webster cites Phillips.
Oxford English Dictionary
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CBO
Orchestra, the original name of the City of Birmingham Symphony Orchestra
Collateralized bond obligation, a type of collateralized debt obligation
Columbium
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columbate
▪ I. columbate, n. Chem. (kəˈlʌmbeɪt) [f. columb-ium + -ate1.] A salt of columbic acid.1816 J. Smith Panorama Sc. & Art II. 431 It is found in the ore of columbium or columbate of iron.▪ II. † columbate, v. Obs.—0 [f. L. columbāt- ppl. stem of columbāri to bill like doves.] ‘To bill or kisse like a ...
Oxford English Dictionary
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Heinrich Rose
Hatchett had named the new element "columbium", from the ore in which niobium and tantalum coexist.
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niobium
niobium Chem. (naɪˈəʊbɪəm) [f. Niob-e, the daughter of Tantalus, + -ium; named in 1845 by Heinrich Rose, who rediscovered it in the tantalites of Bavaria. The earlier name is columbium.] A metallic element, occurring in tantalite and other minerals. Symbol Nb.1845 H. Rose in Chem. Gaz. III. 36 It is...
Oxford English Dictionary
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Mining industry of Burundi
Burundi is a producer of columbium (niobium) and tantalum ore, tin ore, and tungsten ore, and some deposits of gold which are designated for export. Columbium (niobium) and tantalum were mined by Asyst Mines, Comptoirs Miniers de Burundi S.A., Hamza, and Habonimana but the production of columbite-tantalite
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CB
Berry),美国吉他手,摇滚歌手与作曲家
克里斯·布朗(Chris Brown),美国歌手、演员
克利夫·伯顿(Cliff Burton,1962-1986),美国音乐家
科学与医学
大麻素(Cannabinoids),发现于印度大麻的一组萜酚类化合物
铌(Niobium),旧称钶(Columbium
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Charles Hatchett
For many years, there was confusion over whether columbium and tantalum were the same. Eventually, Rose's niobium (atomic number 41) was found to be identical to Hatchett's columbium.
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