paracyˈanogen Chem.
[para-1 2.]
An isomer or polymer of cyanogen, a dark brown porous substance formed in small quantity when cyanogen is prepared from cyanide of mercury. So paraˈcyanate, paracyˈanic adjs., paraˈcyanide.
| 1854 J. Scoffern in Orr's Circ. Sc., Chem. 500 Cyanide of mercury..evolving cyanogen and metallic mercury when heated in a close vessel, and leaving a black residue termed paracyanogen. 1857 Mayne Expos. Lex., Paracyanate..applied by Berzelius to a fulminate. Ibid., Paracyanicus..applied by Berzelius to fulminic acid, because, though having the same composition as cyanic acid, it widely differs in relation to its properties: paracyanic. 1864 H. Spencer Biol. I. 7 In paracyanogen, formed of the same proportions of these elements in higher multiples, we have a solid which does not fuse or volatilize at ordinary temperatures. 1866 Watts Dict. Chem. IV. 342 Paracyanide of silver. |