tantalic, a.1 Chem.
(tænˈtælɪk)
[f. tantalum + -ic.]
Of or derived from tantalum; in names of chemical compounds in which tantalum is pentavalent, as tantalic chloride, tantalic fluoride; tantalic oxide, tantalic anhydride, Ta2O5; tantalic acid, hydrated tantalic oxide, H2O.Ta2O5.
| 1842 Parnell Chem. Anal. (1845) 70 After having been heated to redness, alone, tantalic acid is insoluble in all liquids. 1849 D. Campbell Inorg. Chem. 273 A compound of this metal [tantalum] with oxygen—namely, tantalic acid—is found in the minerals tantalite and columbite of Bavaria and North America. 1877 Watts Fownes' Chem. I. 466 Tantalum, in its principal compounds, is quinquivalent, the formula of tantalic chloride being TaCl5..and that of tantalic oxide (which, in combination with bases forms the tantalates) Ta2O5. |