| 释义 |
osmiate Chem.|ˈɒsmɪət, ˈɒz-|
[f. osmi-um + -ate1.]
A salt of osmic acid. a. = perosmate. Now Obs.
The passage in ed. 8 (1895) of C. Bloxam's Chem. corresponding to quot. 1890 occurs s.v. perosmate.
1844Phil. Mag. XXIV. 394 A solution of osmiate of potash. 1849D. Campbell Inorg. Chem. 259 Osmic acid..forms a class of salts known as osmiates: their solutions are decomposed by boiling, osmic acid being evolved. 1852[see osmite]. 1854J. Scoffern in Orr's Circ. Sc., Chem. 514 The fused mass..contains osmiate and iridiate of potash. 1854Chem. Gaz. 1 July 242 The air..which is still saturated with vapour of osmic acid, passes into a solution of potash, and finally to the aspirator; the osmiate of potash thus produced is treated with a few drops of alcohol, and collected in the form of crystallized osmite of potash. 1890Thomson & Bloxam C. Bloxam's Chem. (ed. 7) 428 By dissolving osmic anhydride in potash and adding alcohol, the latter is oxidised at the expense of the potassium osmiate, and rose-coloured octahedral crystals of potassium osmite (K2OsO4.2Aq) are obtained.
b. = osmate.
1905Gooch & Walker Outl. Inorg. Chem. ii. xviii. 490 By fusing osmium compounds with potassium hydroxide and potassium nitrate, potassium osmiate, K2OsO4, is formed. 1962P. J. & B. Durrant Introd. Adv. Inorg. Chem. xxiv. 1033 All three elements in the Group, iron, ruthenium, and osmium, are present in the oxidation state VI in the ferrates, the ruthenates, and the osmiates; the general formula is K2MO4. |