| 单词 | ferric acid |
| 释义 | > as lemmasferric acid ferric acid n. [after French acide ferrique (1789 in the passage translated in quot. 1789)] any of a number of (sometimes hypothetical) oxyacids containing iron in a higher oxidation state (cf. ferrate n.); a solution containing such an acid, used esp. to etch or dissolve copper.Often represented as HnFeO4, where n can be 2, 3, or 4. ΚΠ 1789 R. Kerr tr. A. Lavoisier Elements Chem. i. xi. 166 Names of the acids..Ferric [Fr. ferrique]. 1853 W. Gregory Inorg. Chem. (ed. 3) 214 Ferric Acid..corresponding to manganic acid, is also unknown in the separate state. 1903 S. Rideal Disinfection & Preservation Food vi. 166 Its oxidizing properties are due to free hypochlorous acid and ferric acid, FeO3. 1984 T. D. Waite & K. A. Gray in L. Pawlowski et al. Chem. for Protection Environment 408 Compounds of iron (IV), (V) and (VI) have been isolated as the metal salts of ferric acid. 2007 C. H. Shelley et al. Industr. Firefighting for Munic. Firefighters xxvii. 261/1 Acids such as nitric acid, ferric acid, or sulfuric acid are used in some of the printing processes to etch the printing plates. < as lemmas |
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