<unk>  was discovered in 1824 by Justus von Liebig. The molecular formula is H2C2N2O2, with the empirical formula being HCNO. This organic<unk>  is an isomer of cyanic<unk> , discovered one year later by Friedrich Woehler.<unk>  and its salts, for instance mercury fulminate, are very dangerous, and are often used as detonators for other explosive materials, and are examples of primary explosives. The vapors are also toxic.
Fulminic acid
Hemin
Chromate
Heme
Kaolinite
Hydrotalcite
Hypophosphorous acid
Sulfate