perosmicadj.

Brit.

/pəˈrɒzmɪk/, U.S.

/pəˈrɑzmɪk/

Origin: Formed within English, by derivation. Etymons: per- prefix, osmic adj.¹

Etymology: < per- prefix + osmic adj.¹

Chemistry.

Of osmium in its highest oxidation state (8). Chiefly in perosmic acid n. = osmium tetroxide n. at osmium n. Compounds, osmic acid n. (a) at osmic adj.¹ Compounds.

ΚΠ

1877 Athenæum 1 Dec. 702/2 Mounting for the microscope specimens of small animals which have been hardened in perosmic acid.

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.

1928 Jrnl. Amer. Chem. Soc. 50 82 An ionization constant of perosmic acid H₂OsO₅ has been calculated.

1950 Analyt. Chem. 22 1336/2 Iodate, bromate, perosmic, and molybdate ions.

1963 Inorg. Chem. 2 426 A standard OsO₄ solution..was prepared by dissolving 0.5 g. of analytical reagent grade perosmic acid..in 500 ml. of 0.1N H₂SO₄.

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

单词	perosmic
释义	perosmicadj. Brit. /pəˈrɒzmɪk/, U.S. /pəˈrɑzmɪk/ Origin: Formed within English, by derivation. Etymons: per- prefix, osmic adj.¹ Etymology: < per- prefix + osmic adj.¹ Chemistry. Of osmium in its highest oxidation state (8). Chiefly in perosmic acid n. = osmium tetroxide n. at osmium n. Compounds, osmic acid n. (a) at osmic adj.¹ Compounds. ΚΠ 1877 Athenæum 1 Dec. 702/2 Mounting for the microscope specimens of small animals which have been hardened in perosmic acid. 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. 1928 Jrnl. Amer. Chem. Soc. 50 82 An ionization constant of perosmic acid H₂OsO₅ has been calculated. 1950 Analyt. Chem. 22 1336/2 Iodate, bromate, perosmic, and molybdate ions. 1963 Inorg. Chem. 2 426 A standard OsO₄ solution..was prepared by dissolving 0.5 g. of analytical reagent grade perosmic acid..in 500 ml. of 0.1N H₂SO₄. This entry has been updated (OED Third Edition, December 2005; most recently modified version published online March 2022). < adj.1877
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