Cyanuric acid
| Names | |
|---|---|
| IUPAC name
1,3,5-Triazinane-2,4,6-trione
| |
| Other names
1,3,5-Triazine-2,4,6(1H,3H,5H)-trione
1,3,5-Triazinetriol s-Triazinetriol s-Triazinetrione Tricarbimide Isocyanuric acid Pseudocyanuric acid | |
| Properties | |
| C3H3N3O3 | |
| Molar mass | 129.07 g/mol |
| Appearance | White solid |
| Odor | Odorless |
| Density | 2.5 g/cm3 |
| Melting point | 320–360 °C (608–680 °F; 593–633 K) (decomposes) |
| Boiling point | 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 |
| Hazards | |
| 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) |
| Related compounds | |
| Related compounds
|
Trichloroisocyanuric acid |
| Except where otherwise noted, data are given for materials in their standard state (at 25 °C [77 °F], 100 kPa). | |
| Infobox references | |
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.
Contents
Properties
Chemical
Thermal decomposition of cyanuric acid in the presence of an alkali base yields cyanates and carbon oxides.
Physical
Cyanuric acid is an odorless white solid, poorly soluble in water.
Availability
Cyanuric acid is available as chlorine stabilizer in swimming pools and can be purchased from hardware stores.
Preparation
Can be prepared by thermal decomposition of urea. It is also created when generating chlorine from TCCA and hydrochloric acid, which is rather unpractical 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.
Projects
- Make tetrazoles
- Make sodium cyanide
Handling
Safety
Cyanuric acid has low toxicity, though it may be slightly irritant.
Storage
Cyanuric acid should be kept in closed bottles.
Disposal
No special disposal is required, can be poured down the drain in the trash.
