Ammelide

Names
IUPAC name 6-Amino-2,4-Dihydroxy-l,3,5-Triazine
Other names Ammelid, 2-Amino-1,3,5-triazine-4,6-dione, 2-Amino-4,6-dihydroxy-s-triazine
Identifiers
CAS Number	645-93-2
ECHA InfoCard	100.010.416
PubChem CID	10927
CompTox Dashboard (EPA)	DTXSID10214757
Properties
Chemical formula	C3H4N4O2
Molar mass	128.09 g/mol
Appearance	white powder
Solubility in water	insoluble
Solubility	soluble in concentrated mineral acids, alkalies and ammonia
Except where otherwise noted, data are given for materials in their standard state (at 25 °C [77 °F], 100 kPa). Infobox references

Ammelide (6-Amino-2,4-Dihydroxy-l,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 synthezised 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^oC 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 alkalies.

References

• B. Bann and S.A. Miller, "Melamines and derivatives of melamine", Chemical Reviews, vol.58, p131-172 (1958).