| 单词 | perrhenic |
| 释义 | perrhenic, a. Chem.|pəˈriːnɪk|
[f. per-1 5 b + rhenium + -ic.]
perrhenic acid, a strong acid, HReO4, which is known only as a colourless aqueous solution and is an oxidizing agent.
1929Chem. Abstr. XXIII. 1833 Yellow oxide, Re2O7,..is water sol[uble], hygroscopic, forming a strong acid, perrhenic acid. 1962P. J. & B. Durrant Introd. Adv. Inorg. Chem. xxiv. 1019 Rhenium heptoxide dissolves freely in water to form perrhenic acid. Ibid., Many salts of perrhenic acid are known. 1973R. D. Peacock in J. C. Bailar et al. Comprehensive Inorg. Chem. III. xxxix. 946 Perrhenic acid is a strong acid; this is shown by the pH of its aqueous solution, its attack upon metals, [etc.].
Hence peˈrrhenate [-ate4], a salt of this acid; the anion ReO4-.
1929Chem. Abstr. XXIII. 4632 Perrhenates of non⁓volatile bases can be ignited in O2 without decompn. 1950N. V. Sidgwick Chem. Elements II. 1295 Perrhenates are formed with great ease by the action of oxidizing agents..on metallic rhenium or its lower oxides and their derivatives. 1962Cotton & Wilkinson Adv. Inorg. Chem. xxx. 801 After concentration, the perrhenate is precipitated by addition of potassium chloride as the sparingly soluble salt, KReO4. 1972Inorg. Syntheses XIII. 219 This difficulty has been overcome for ReHg2- by a synthesis of the disodium salt in which an ethanol solution of sodium perrhenate is reduced with sodium metal to give the hydride in ca. 35% yield. |
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