单词 | ferric chloride |
释义 | > as lemmasferric chloride ferric chloride n. iron( iii) chloride, a red or (when hydrated) yellow solid with Lewis acid properties, used in solution to promote the clumping of particles in sewage treatment, and as an etchant for copper.Formula: FeCl3. ΚΠ 1835 C. U. Shepard Treat. Mineral.: 2nd Pt. II. 313 Ferrous & manganous silicate & ferric chloride. Pyrosmalite. 1869 J. Phillips Vesuvius v. 152 Ferric chloride (muriate of iron) is found among the sublimations of Vesuvius. 1964 P. J. Hills Small Scale Org. Prepar. xi. 82 When a few drops of ferric chloride solution are added, a deep red colour is formed. 2000 P. Scherz Pract. Electronics for Inventors xiv. 432 Place the board in a tub of etching solvent (typically ferric chloride) and wait until the copper dissolves away. < as lemmas |
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