platinousadj.

Brit.

/ˈplatᵻnəs/,

/ˈplatn̩əs/, U.S.

/ˈplætn̩əs/

Origin: Formed within English, by derivation; modelled on a Latin lexical item. Etymons: platinum n., -ous suffix.

Etymology: < platinum n. + -ous suffix, after post-classical Latin platinosus (in J. J. Berzelius 1813, in Jrnl. f. Chemie u. Physik 7 57). Compare French platineux (1842 in oxyde platineux ; probably after Berzelius's post-classical Latin oxydum platinosum (1813: see above). Compare also earlier platinic adj.

Chemistry.

Of or containing platinum, esp. in the divalent state. Cf. platinic adj.

ΘΚΠ

the world > matter > chemistry > elements and compounds > metals > specific elements > platinum > [adjective] > compounds

platinic1790

platinous1842

1842 E. A. Parnell Elem. Chem. Anal. 95 The conversion of the platinous oxide compounds into the platinic oxide.

1890 W. de W. Abney Photogr. (ed. 6) 171 A platinous salt..was mixed with a ferric oxalate.

1938 H. J. Emeléus & J. S. Anderson Mod. Aspects Inorg. Chem. iv. 121 Platinous iodides.

1950 N. V. Sidgwick Chem. Elements II. 1580 If platinum tetrachloride is heated under 1 atm. pressure of chlorine, it is converted..into..platinous chloride PtCl₂, which is brownish-green.

1995 Jrnl. Physical Chem. 99 4199/2 When studying bulk platinous compounds.., white line intensities are a reliable indication of changes in Pt oxidation state.

This entry has been updated (OED Third Edition, June 2006; most recently modified version published online March 2022).

单词	platinous
释义	platinousadj. Brit. /ˈplatᵻnəs/, /ˈplatn̩əs/, U.S. /ˈplætn̩əs/ Origin: Formed within English, by derivation; modelled on a Latin lexical item. Etymons: platinum n., -ous suffix. Etymology: < platinum n. + -ous suffix, after post-classical Latin platinosus (in J. J. Berzelius 1813, in Jrnl. f. Chemie u. Physik 7 57). Compare French platineux (1842 in oxyde platineux ; probably after Berzelius's post-classical Latin oxydum platinosum (1813: see above). Compare also earlier platinic adj. Chemistry. Of or containing platinum, esp. in the divalent state. Cf. platinic adj. ΘΚΠ the world > matter > chemistry > elements and compounds > metals > specific elements > platinum > [adjective] > compounds platinic1790 platinous1842 1842 E. A. Parnell Elem. Chem. Anal. 95 The conversion of the platinous oxide compounds into the platinic oxide. 1890 W. de W. Abney Photogr. (ed. 6) 171 A platinous salt..was mixed with a ferric oxalate. 1938 H. J. Emeléus & J. S. Anderson Mod. Aspects Inorg. Chem. iv. 121 Platinous iodides. 1950 N. V. Sidgwick Chem. Elements II. 1580 If platinum tetrachloride is heated under 1 atm. pressure of chlorine, it is converted..into..platinous chloride PtCl₂, which is brownish-green. 1995 Jrnl. Physical Chem. 99 4199/2 When studying bulk platinous compounds.., white line intensities are a reliable indication of changes in Pt oxidation state. This entry has been updated (OED Third Edition, June 2006; most recently modified version published online March 2022). < adj.1842
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