palladicadj.

Brit.

/pəˈladɪk/, U.S.

/pəˈlædɪk/

Origin: Formed within English, by derivation; modelled on a Latin lexical item. Etymons: palladium n.², -ic suffix.

Etymology: < pallad- (in palladium n.²) + -ic suffix, after post-classical Latin palladicus (Berzelius 1811, in Jrnl. de physique 73 264). Compare French palladique (1843 or earlier).

Chemistry.

Of or containing palladium, esp. in the trivalent or tetravalent state. Cf. palladous adj.Now rare except as an element in systematic names, as chloropalladic acid.

ΘΚΠ

the world > matter > chemistry > elements and compounds > metals > specific elements > palladium > [adjective] > compounds with small proportion

palladic1857

1857 R. G. Mayne Expos. Lexicon Med. Sci. (1860) Palladicus, Berzelius termed the second degree of oxidation of palladium—oxydum palladicum and the combinations of palladium with halogenous bodies—sales palladici: palladic.

1866–77 H. Watts Dict. Chem. IV. 328 Palladic salts are very unstable, being easily reduced to palladious salts by heat, and by reducing agents.

1870 Nature 16 June 136/1 If the molecules of palladium were made free to move, as those of mercury, it is probable that Graham's hydrogenium alloy would become a palladic froth.

1906 H. J. H. Fenton Notes Qualitative Anal. (new ed.) 163 Aqua regia dissolves it [sc. palladium] forming palladious and palladic chlorides.

1950 N. V. Sidgwick Chem. Elements II. 1575 No binary palladic tetrahalides are known, but there is a series of complex derivatives containing chlorine and bromine.

2001 Mining & Metals Rep. (Nexis) 24 May Burakovsko-Aganozersky could contain 1,500 tonnes PGM with gradings of..up to 50 g/t for palladium in palladic hydrothermal ores.

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

单词	palladic
释义	palladicadj. Brit. /pəˈladɪk/, U.S. /pəˈlædɪk/ Origin: Formed within English, by derivation; modelled on a Latin lexical item. Etymons: palladium n.², -ic suffix. Etymology: < pallad- (in palladium n.²) + -ic suffix, after post-classical Latin palladicus (Berzelius 1811, in Jrnl. de physique 73 264). Compare French palladique (1843 or earlier). Chemistry. Of or containing palladium, esp. in the trivalent or tetravalent state. Cf. palladous adj.Now rare except as an element in systematic names, as chloropalladic acid. ΘΚΠ the world > matter > chemistry > elements and compounds > metals > specific elements > palladium > [adjective] > compounds with small proportion palladic1857 1857 R. G. Mayne Expos. Lexicon Med. Sci. (1860) Palladicus, Berzelius termed the second degree of oxidation of palladium—oxydum palladicum and the combinations of palladium with halogenous bodies—sales palladici: palladic. 1866–77 H. Watts Dict. Chem. IV. 328 Palladic salts are very unstable, being easily reduced to palladious salts by heat, and by reducing agents. 1870 Nature 16 June 136/1 If the molecules of palladium were made free to move, as those of mercury, it is probable that Graham's hydrogenium alloy would become a palladic froth. 1906 H. J. H. Fenton Notes Qualitative Anal. (new ed.) 163 Aqua regia dissolves it [sc. palladium] forming palladious and palladic chlorides. 1950 N. V. Sidgwick Chem. Elements II. 1575 No binary palladic tetrahalides are known, but there is a series of complex derivatives containing chlorine and bromine. 2001 Mining & Metals Rep. (Nexis) 24 May Burakovsko-Aganozersky could contain 1,500 tonnes PGM with gradings of..up to 50 g/t for palladium in palladic hydrothermal ores. This entry has been updated (OED Third Edition, March 2005; most recently modified version published online March 2022). < adj.1857
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