| IUPAC name
| Other names
|Molar mass||129.07 g/mol|
|Melting point||320–360 °C (608–680 °F; 593–633 K) (decomposes)|
|0.27 g/100 ml (25 °C)|
|Solubility|| Soluble in DMSO, conc. HCl, pyridine, conc. sulfuric acid|
Slightly soluble in DMF, ethanol
Insoluble in acetone, benzene, chloroform, diethyl ether, methanol
|Vapor pressure||4.41·10-11 mmHg at 25 °C|
|Safety data sheet||Sigma-Aldrich|
|Lethal dose or concentration (LD, LC):|
LD50 (Median dose)
| 7,700 mg/kg (rat, oral)|
5,000 mg/kg (rabbit, dermal)
Except where otherwise noted, data are given for materials in their standard state (at 25 °C [77 °F], 100 kPa).
Cyanuric acid (or 1,3,5-triazine-2,4,6-triol) is a chemical compound with the formula (CNOH)3, often encountered as as bleach.
Thermal decomposition of cyanuric acid in the presence of an alkali base yields cyanates and carbon oxides.
Cyanuric acid is an odorless white solid, poorly soluble in water.
Cyanuric acid is available as chlorine stabilizer in swimming pools and can be purchased from hardware stores.
Can be prepared by thermal decomposition of urea. It is also created when generating chlorine from TCCA and hydrochloric acid, which is rather impractical for the preparation of cyanuric acid because of the large amounts of chlorine being produced. Rather, it's much cheaper to simply buy the compound.
- Make tetrazoles
- Make sodium cyanide
Cyanuric acid has low toxicity, though it may be slightly irritant.
Cyanuric acid should be kept in closed bottles.
No special disposal is required, can be poured down the drain in the trash.