Hydrogen cyanide is a colourless or light blue liquid or gas that is extremely flammable. It has a faint bitter almond odour, though not everyone is able to detect this. Hydrogen cyanide is released from some raw and unprocessed edible plants when they are damaged or digested by the body.
Has a faint bitter almond odour.
HCN has many uses such as the manufacture of paints, plastics, synthetic fibres (i.e. nylon) and other chemicals being its primary use.
Early signs of exposure to hydrogen cyanide include headache, a feeling of sickness, dizziness and confusion.