单词 | vanadous |
释义 | vanadousadj. Chemistry. Of or containing vanadium, spec. in an oxidation state of + 2. ΘΚΠ the world > matter > chemistry > elements and compounds > metals > specific elements > vanadium > [adjective] > in lower valency vanadous1850 vanadious1868 1850 H. Watts tr. L. Gmelin Hand-bk. Chem. IV. 90 (heading) Bisulphide of vanadium.—Vanadous sulphide. 1858 T. Graham Elem. Chem. (ed. 2) II. 173 Bioxide of vanadium is also capable of acting as an acid... It is hence called vanadous acid. 1887 C. M. Tidy Handbk. Mod. Chem. (ed. 2) xvii. 504 Preparation [of Vanadium].—By heating vanadous chloride (VCl3) in a current of dry hydrogen, air and moisture being excluded. 1927 Amer. Mineralogist 12 236 There may also be assumed to be present..:..a vanadous acmite, Na2O·V2O3·4SiO2. 1954 Thorpe's Dict. Appl. Chem. (ed. 4) XI. 833/1 Vanadous Oxide, VO, has not been prepared pure. 1962 H. L. Kern et al. in A. Pirie Lens Metabolism 386 The tubes were..gassed with N2CO2 (95:5) from which the oxygen had been removed by passage through vanadous sulphate. 1980 Jrnl. Amer. Chem. Soc. 102 3035/1 The change from a d4 (chromous) to a d3 (vanadous) ion results in a profound change in the stoichiometry. This entry has not yet been fully updated (first published 1916; most recently modified version published online December 2021). < adj.1850 |
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