ECHEMI | Cyanic acid

Cyanic acid is a one-carbon compound and a pseudohalogen oxoacid. It is a conjugate acid of a cyanate. It is a tautomer of an isocyanic acid. Colorless liquid or gas with an acrid smell; mp -86°C (-122.8°F); bp 23.5°C (74.3°F); density 1.140 at 20°C (68°F); soluble in water, alcohol, ether, benzene, and toluene.