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单词 paracyanide
释义

paracyaniden.

Origin: Formed within English, by derivation. Etymons: para- prefix1, cyanide n.
Etymology: < para- prefix1 + cyanide n.
Chemistry. Obsolete.
A supposed compound of a base (spec. silver) with carbon and nitrogen, obtained by heating a cyanide.
ΚΠ
1857 H. Watts tr. L. Gmelin Hand-bk. Chem. XI. 374 Paracyanide of silver [Ger. Paracyansilber]..yields, when heated to bright redness, a mixture of nitrogen and cyanogen gases.
1870 C. R. Fresenius Syst. Instr. Quantitative Chem. Anal. 125 Metallic silver, which remains, mixed with a little paracyanide of silver.
This entry has been updated (OED Third Edition, June 2005; most recently modified version published online June 2018).
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