| 单词 | chromic oxide |
| 释义 | > as lemmaschromic oxide Of or belonging to chromium; containing chromium in chemical combination. Applied in Chemistry to compounds in which chromium combines as a triad, as chromic iron = chrome iron ore; chromic chloride Cr2Cl6; chromic oxide Cr2O3; chromic acid or chromic anhydride CrO3. ΘΚΠ the world > matter > chemistry > elements and compounds > metals > specific elements > chromium > [adjective] chromic1800 1800 tr. E. J. B. Bouillon-Lagrange Man. Course Chem. I. 389 The chromic acid has an orange-red colour, with a pungent and metallic taste. 1844 J. D. Dana Syst. Mineral. (ed. 2) 445 Chromic iron occurs only in serpentine rocks. 1869 H. E. Roscoe Lessons Elem. Chem. (new ed.) xxiii. 229 Chromium Dichloride, CrCl2, is a white crystalline body, which dissolves in water, forming a blue solution. It is obtained by passing hydrogen over heated chromic chloride. 1875 tr. H. W. Vogel Chem. Light & Photogr. xiv. 213 The photo~chemistry of chromic combinations. < as lemmas |
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