Guanidine and Derivatives
Published Online: 15 JUL 2006
Copyright © 2002 by Wiley-VCH Verlag GmbH & Co. KGaA
Ullmann's Encyclopedia of Industrial Chemistry
How to Cite
Güthner, T., Mertschenk, B. and Schulz, B. 2006. Guanidine and Derivatives. Ullmann's Encyclopedia of Industrial Chemistry. .
- Published Online: 15 JUL 2006
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Guanidine salts are made from cyanamide or dicyandiamide by addition of ammonium salts. The highly soluble guanidine hydrochloride is mainly used in pharmaceutical and biotech applications, while guanidine nitrate is used in propellants and explosives.
Nitroguanidine, prepared by nitration of guanidine nitrate, is used for explosives and as a building block for neonicotinoid insecticides. Aminoguanidines, prepared from hydrazines and cyanamide or guanidines, are mainly used for agrochemicals and — due to their high nitrogen content — as a component for propellants and gas generators.
Organoguanidines can be prepared from cyanamides or cyanogen chloride. They are used as building blocks for agrochemicals and pharmaceuticals, and as curing agents for plastics and rubbers. Biguanides can be obtained from dicyanamide or cyanoguanidines, they are mainly used as pharmaceuticals and biocides.