perosmaten.

Brit.

/pəˈrɒzmeɪt/, U.S.

/pəˈrɑzmeɪt/

Origin: Formed within English, by derivation. Etymons: per- prefix, osmate n.

Etymology: < per- prefix + osmate n., after perosmic adj.

Chemistry.

A salt containing the anion [OsO₄(OH)₂]²⁻, in which osmium has its highest oxidation state (8).The passage in ed. 7 of Bloxam's Chem. corresponding to quot. 1895 occurs as quot. 1890 at osmiate n.

ΘΚΠ

the world > matter > chemistry > chemical substances > salts > [noun] > salts named by atomic number > osmates > of osmium

osmiate1844

perosmate1895

1895 J. M. Thomson & A. G. Bloxam Bloxam's Chem. (ed. 8) 470 By dissolving perosmic anhydride in potash, potassium perosmate is supposed to be formed, but this has not been isolated.

1949 Thorpe's Dict. Appl. Chem. (ed. 4) IX. 134/1 Addition of alcohol to the clear solution and washings precipitates the ruthenium..and reduces the perosmate to violet osmate.

1973 S. E. Livingstone in J. C. Bailar et al. Comprehensive Inorg. Chem. III. xliii. 1232 Potassium osmate K₂[OsO₂(OH)₄]..is best prepared by reduction with alcohol of potassium perosmate K₂[OsO₄(OH)₂].

1984 N. N. Greenwood & A. Earnshaw Chem. of Elements (1986) xxv. 1257 Dissolution of OsO₄ in cold aqueous KOH produces deep-red crystals of K₂[Os^VIIIO₄(OH)₂] (‘perosmate’).

This entry has been updated (OED Third Edition, December 2005; most recently modified version published online March 2022).

单词	perosmate
释义	perosmaten. Brit. /pəˈrɒzmeɪt/, U.S. /pəˈrɑzmeɪt/ Origin: Formed within English, by derivation. Etymons: per- prefix, osmate n. Etymology: < per- prefix + osmate n., after perosmic adj. Chemistry. A salt containing the anion [OsO₄(OH)₂]²⁻, in which osmium has its highest oxidation state (8).The passage in ed. 7 of Bloxam's Chem. corresponding to quot. 1895 occurs as quot. 1890 at osmiate n. ΘΚΠ the world > matter > chemistry > chemical substances > salts > [noun] > salts named by atomic number > osmates > of osmium osmiate1844 perosmate1895 1895 J. M. Thomson & A. G. Bloxam Bloxam's Chem. (ed. 8) 470 By dissolving perosmic anhydride in potash, potassium perosmate is supposed to be formed, but this has not been isolated. 1949 Thorpe's Dict. Appl. Chem. (ed. 4) IX. 134/1 Addition of alcohol to the clear solution and washings precipitates the ruthenium..and reduces the perosmate to violet osmate. 1973 S. E. Livingstone in J. C. Bailar et al. Comprehensive Inorg. Chem. III. xliii. 1232 Potassium osmate K₂[OsO₂(OH)₄]..is best prepared by reduction with alcohol of potassium perosmate K₂[OsO₄(OH)₂]. 1984 N. N. Greenwood & A. Earnshaw Chem. of Elements (1986) xxv. 1257 Dissolution of OsO₄ in cold aqueous KOH produces deep-red crystals of K₂[Os^VIIIO₄(OH)₂] (‘perosmate’). This entry has been updated (OED Third Edition, December 2005; most recently modified version published online March 2022). < n.1895
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