| IUPAC name
| Other names
|3D model (Jmol)||Interactive image|
|Molar mass||232.40 g·mol−1|
|Density||2.19 ± 0.1 g/cm3|
|Melting point||246 to 247 °C (475 to 477 °F; 519 to 520 K)|
|Solubility in other solvents||Soluble in chlorocarbons, acetone, and acetonitrile|
|Main hazards||lung irritant|
|R-phrases||R8, R22, R31, R36/37, R50/53|
|S-phrases||S8, S26, S41, S60, S61|
| Cyanuric chloride|
Except where otherwise noted, data are given for materials in their standard state (at 25 °C [77 °F], 100 kPa).
|(what is ?)|
Trichloroisocyanuric acid is an organic compound with the formula (C3Cl3N3O3). It is used as an industrial disinfectant, bleaching agent and a reagent in organic synthesis. This white crystalline powder, which has a strong "chlorine odour," is sometimes sold in tablet or granule form for domestic and industrial use. Salts of trichloroisocyanuric acid are known as trichloroisocyanurates.
The compound is a disinfectant, algicide and bactericide mainly for swimming pools and dyestuffs, and is also used as a bleaching agent in the textile industry. It is widely used in civil sanitation for pools and spas, preventing and curing diseases in animal husbandry and fisheries, fruit and vegetable preservation, wastewater treatment, as an algicide for recycled water in industry and air conditioning, in anti shrink treatment for woolens, for treating seeds and in organic chemical synthesis.
Trichloroisocyanuric acid as used in swimming pools is easier to handle than chlorine. It dissolves slowly in water, but as it reacts, cyanuric acid concentration in the pool will build-up. At high cyanuric acid concentrations, normal chlorine levels can be rendered ineffective, requiring either dilution by draining and refilling the pool or by adding abnormally high doses of chlorine to overcome this effect.