a. Chem. [f. CHROME + -IC. Cf. F. chromique.] Of or belonging to chromium; containing chromium in chemical combination. Applied in Chem. to compounds in which chromium combines as a triad, as chromic iron = chrome iron ore; chromic chloride Cr2 Cl6; chromic oxide Cr2 O3; chromic acid or chromic anhydride Cr O3.
1800. trans. Lagrange’s Chem., I. 389. The chromic acid has an orange-red colour, with a pungent and metallic taste.
1844. Dana, Min., 445. Chromic iron occurs only in serpentine rocks.
1869. Roscoe, Elem. Chem., 246. Chromium Dichloride, is obtained by passing hydrogen over heated chromic chloride.
1875. trans. Vogel’s Chem. Light, xiv. 213. The photochemistry of chromic combinations.
