Ammelide (6-amino-2,4-dihydroxy-1,3,5-triazine) is a triazine and the hydrolysis product of ammeline.
Synthesis
Ammelide can be obtained by heating
dicyandiamide with aqueous
ammonia at 160−170 °C. It can also be synthesized by heating melam with concentrated
sulfuric acid for a short time at 190 °C.
Chemical property
Ammelide forms salts with both acids (hydrochloric acid,
nitric acid,
sulfuric acid) and bases (
sodium hydroxide,
ammonium, calcium hydroxide).
Ammelide decomposes at 170 °C with water to form carbon dioxide and ammonia. It can be converted into cyanuric acid by oxidizing agents (e.g. potassium permanganate) or by boiling with acids or alkalis.
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B. Bann and S.A. Miller, "Melamines and derivatives of melamine", Chemical Reviews, vol.58, p131-172 (1958).
