Acid of cyanogen make water also says 3 get together cyanic acid, it is a kind of heterocyclic apperception closes matter, react for pyrolysis of raw material classics with urea and it arises.

• 氰尿酸亦称三聚氰酸,是一种杂环类化合物,它是以尿素为原料经热分解反应而产生的。