Chemical elements
    Physical Properties
    Chemical Properties
      Carbon Tetrafluoride
      Carbon Tetrachloride
      Carbon Tetrabromide
      Carbon Tetraiodide
      Carbon Oxychloride
      Carbonyl Chloride
      Carbon Oxybromide
      Carbonyl Bromide
      Carbon Suboxide
      Carbon Monoxide
      Carbon Dioxide
      Percarbonic Acid
      Carbamic Acid
      Carbon Disulphide
      Carbonyl Sulphide
      Carbon Oxysulphide
      Thiocarbonyl Chloride
      Thiocarbonic Acid
      Thiocarbamic acid
      Carbon Monosulphide
      Carbon Subsulphide
      Carbon Sulphidoselenide
      Carbon Sulphidotelluride
      Carbon Nitrides
      Hydrocyanic Acid
      Prussic Acid
      Cyanogen Chloride
      Cyanogen Bromide
      Cyanogen Iodide
      Polymerised Cyanogen Halides
      Cyanic Acid
      Cyanuric Acid
      Fulminic Acid
      Thiocyanic Acid
      Sulphocyanic Acid
      Isoperthiocyanic Acid
      Cyanogen Sulphide
      Thiocyanic Anhydride
    Amorphous Carbon

Carbon Nitrides

Besides cyanogen, to be described below, carbon is known to form two other nitrides, C4N2 and C6N2, which have recently been obtained from organic sources.

Carbon Subnitride, C4N2, is dicyanacetylene, NC-CC-CN, and the nitrile of acetylene dicarboxylic acid; it is formed by the elimination of two molecules of water from the amide of that acid:


is crystalline, melts at 20.5°-21° C., and boils at 76° C. under 753 mm. pressure.

Another subnitride, C6N2, is probably the nitrile of diacetylene dicarboxylic acid, and thus has the constitution NC-CC-CC-CN. It is prepared by oxidising cyanacetylene, CHC-CN, with potassium ferricyanide, and forms crystalline needles melting at 64° C.

© Copyright 2008-2012 by