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单词 indium
释义

indiumn.

Brit. /ˈɪndɪəm/, U.S. /ˈɪndiəm/
Etymology: < radical of ind-icum indigo n. and adj. + -ium, after sodium, etc.; in reference to the two indigo lines which form the characteristic spectrum of the metal.
Chemistry.
A soft silver-white metal of extreme rarity, occurring in association with zinc and other metals; discovered by Reich and Richter in 1863, by means of spectrum analysis, in the zinc-blende of Freiberg. Symbol In.
ΘΚΠ
the world > matter > chemistry > elements and compounds > metals > specific elements > indium > [noun]
indium1864
1864 Lyell Inaug. Addr. in Reader 17 Sept. 358 A fourth metal named indium, from its indigo-coloured band, was detected by Professor Richter of Freiberg in Saxony in a zinc ore of the Hartz.
1874 tr. E. Lommel Nature of Light (ed. 4) 114 The blue light of Indium undergoes a still stronger refraction than that of Thallium.
1882 Nature No. 639. 290 He finds that indium is like some other metals in not coming under the often-accepted rule that pure metals have a change of coefficient of resistance with temperature.

Compounds

attributive, as indium bromide (In Br), indium chloride, indium monochloride (In Cl), indium dichloride (In Cl2), indium trichloride (In Cl3); indium iodide, indium oxide, indium hydroxide; indium salts, etc.
ΚΠ
1897 H. E. Roscoe & C. Schorlemmer Treat. Chem. II. 609 Indium Oxide In2O3 is a pale yellow powder.
1897 H. E. Roscoe & C. Schorlemmer Treat. Chem. II. 611 Indium Ammonium Alum..is deposited in well-defined regular octohedra.
This entry has not yet been fully updated (first published 1900; most recently modified version published online March 2022).
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n.1864
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