Trichloroisocyanuric acid

"TCCA" redirects here. For the organization formerly known as The Textile Color Card Association of the United States (TCCA), see The Color Association of the United States.

Trichloroisocyanuric acid

Symclosene
Names
IUPAC names 1,3,5-trichloro-1,3,5- triazinane-2,4,6-trione
Other names TCICA, 1,3,5-trichloro-1,3,5-triazine -2,4,6(1H,3H,5H)-trione, Symclosene, trichloro-s-triazinetrione, TCCCA, trichlor
Identifiers
CAS Number	87-90-1 Y
3D model (JSmol)	Interactive image
ChEBI	CHEBI:33015 Y
ChemSpider	6643 Y
ECHA InfoCard	100.001.621
PubChem CID	6909
RTECS number	XZ1925000
UNII	RL3HK1I66B Y
CompTox Dashboard (EPA)	DTXSID2026523
InChI InChI=1S/C3Cl3N3O3/c4-7-1(10)8(5)3(12)9(6)2(7)11 Y Key: YRIZYWQGELRKNT-UHFFFAOYSA-N Y InChI=1/C3Cl3N3O3/c4-7-1(10)8(5)3(12)9(6)2(7)11 Key: YRIZYWQGELRKNT-UHFFFAOYAR
SMILES ClN1C(=O)N(Cl)C(=O)N(Cl)C1=O
Properties
Chemical formula	C3Cl3N3O3
Molar mass	232.41 g/mol
Appearance	colourless solid
Density	2.19 ± 0.1 g/cm³
Melting point	246-47 °C
Boiling point	decomp.
Solubility in water	0.2%
Solubility in other solvents	chlorocarbons acetone acetonitrile
Structure
Coordination geometry	planar
Dipole moment	0 D
Hazards
Occupational safety and health (OHS/OSH):
Main hazards	lung irritant
Flash point	NA
Related compounds
Except where otherwise noted, data are given for materials in their standard state (at 25 °C [77 °F], 100 kPa). Y verify (what is YN ?) Infobox references

Trichloroisocyanuric acid is the 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.

Use in water treatment

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 industries.

Applications: It is widely used in civil sanitation, pools and spas, preventing and curing diseases in husbandry and fisheries, fruits and vegetables preservation, wastewater treatment, algaecide for recycling water of industry and air conditioning, anti shrink treatment for woolen, treating seeds, bleaching fabrics, and organic synthesis industry

Benefits of TCCA in Swimming Pool-

• Available with 90% chlorine concentration
• Due to high chlorine content, handling is easy for large pools.
• Reduces chlorine loss during day time. TCCA is stable it does not strip like any other halogen compounds.
• Reduces algae growth.
• Dissolves slowly in water, allowing for continuously metered dosing of available chlorine, especially when in tablet form.

Drawbacks of TCCA in Swimming Pool-

• Cyanuric Acid (CYA) build-up from TCCA use can decrease the effectiveness of Free Active Chlorine (FAC) over time.
• Such build up can only be reduced by dilution with water that does not contain CYA.
• The economics of this effect can greatly reduce the cost-effectiveness of high chlorine availability in TCCA.
• At high CYA 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.

See also

• Dichloroisocyanuric acid (Dichlor)

External links

• Symclosene data page
• Safety data for trichloroisocyanuric acid from Oxford University Chemistry Department.