Cyanoguanidine, dicyanodiamide, N-cyanoguanidine, 1-cyanoguanidine, Guanidine-1-carbonitrile, dicyandiamin, Didin, DCD, Dicy
|Jmol 3D model||Interactive image|
|Molar mass||84.08 g/mol|
|Melting point||209.5 °C (409.1 °F; 482.6 K)|
|Boiling point||252 °C (486 °F; 525 K)|
|Main hazards||harmful (Xn)|
Except where otherwise noted, data are given for materials in their standard state (at 25 °C [77 °F], 100 kPa).
|what is ?)(|
2-Cyanoguanidine is an nitrile derived from guanidine. It is a dimer of cyanamide, from which it can be prepared. 2-Cyanoguanidine is a colourless solid that is soluble in water, acetone, and alcohol, but not nonpolar organic solvents.
Production and use
2-Cyanoguanidine is produced by treating cyanamide with base. It is produced in soil by decomposition of cyanamide. A variety of useful compounds are produced from 2-cyanoguanidine, guanidines and melamine. It is also used as a slow fertilizer. Formerly, it was used as a fuel in some explosives. It is used in the adhesive industry as a curing agent for epoxies.
Loss of ammonia (NH3) from the zwitterionic form, followed by deprotonation of the remaining central nitrogen atom, gives the dicyanamide anion, [N(CN)2]−.