How hydrogen cyanide gets into the environment Sodium and potassium cyanide and other cyanide salts may be made from hydrogen cyanide.
It also has uses in metal cleaning, gardening, ore-extraction, electroplating, dying, printing and photography. Hydrogen cyanide and other cyanide compounds have also been used as a fumigant to control pests. There are many uses for hydrogen cyanide, primarily in the manufacture of paints, plastics, synthetic fibres (for example nylon) and other chemicals. Hydrogen cyanide is an important industrial chemical and over a million tonnes are produced globally each year. Other names for hydrogen cyanide include prussic acid and hydrocyanic acid. It has a faint bitter almond odour, though not everyone is able to detect this. Hydrogen cyanide is a colourless or light blue liquid or gas and is extremely flammable.
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