Dicyandiamide is from water or alcohol precipitation of dicyandiamide white prism-like monoclinic crystal. Melting point 209.5 ° C and relative density d²⁵₄ = 1.400. Cyanide and ammonia dicyandiamide (DCD 15%) of low-melting point for a total of 35.6 ° C Dicyandiamide neutral response. 13 ° C in ethanol solubility of 1.26%; Ether solubility of 0.01%; The water solubility of 2.26%, increased water solubility of the 80 ° C above the water will slowly ammonia decomposition. Dicyandiamide dissolved in liquid ammonia, but not soluble in chloroform and benzene.