释义 |
tungstic, a. Chem.|ˈtʌŋstɪk| [f. tungsten + -ic 1 b.] Pertaining to or formed from tungsten; applied to compounds in which tungsten combines as a hexad (see -ic 1 b), as tungstic acid, H2O.WO3 (formerly = t. oxide), tungstic chloride, WCl6, tungstic oxide, WO3; also to minerals containing tungsten, as tungstic ochre (see ochre n. 2), native tungstic oxide, also called ˈtungstite.
1796Hatchett in Phil. Trans. LXXXVI. 286 In 1790, Mr. Heyer..made some experiments on this ore [molybdate of lead], from which he inferred that it was composed of lead, combined with the tungstic acid. 1836–41Brande Man. Chem. (ed. 5) 923 The Nitro-tungstate of Potassa is the salt originally described by Scheele [1781] as tungstic acid. 1868Watts Dict. Chem. V. 915 Tungstic compounds,..in which tungsten is hexatomic. 1868Dana Min. (ed. 5) 186 Tungstite. |