Trichloro-s-triazinetrione

Trichloroisocyanuric acid - Wikipedia, the free encyclopedia

Trichloroisocyanuric acid

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"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
IUPAC name
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
Identifiers
CAS number 87-90-1 YesY
RTECS number XZ1925000
SMILES
Properties
Molecular 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
R-phrases R8, R22, R31, R36/37, R50/53
S-phrases S8, S26, S41, S60, S61
Flash point NA
Related compounds
Related compounds Cyanuric chloride
dichloroisocyanuric acid
Tribromoisocyanuric acid
 YesY (what is this?)  (verify)
Except where noted otherwise, data are given for materials in their standard state (at 25 °C, 100 kPa)
Infobox references

Trichloroisocyanuric acid (C3Cl3N3O3), also known as Symclosene, trichloro-s-triazinetrione, TCCA, TCICA, and trichlor, is a chemical compound used as an industrial disinfectant, bleaching agent and a reagent in organic synthesis.1 2 This white crystalline powder, which has a strong "chlorine odour," is sometimes sold in tablet or granule form for domestic and industrial use.

Contents

  • 1 Use in water treatment
  • 2 See also
  • 3 References
  • 4 External links

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)

References

  1. ^ Hiegel, G. A. "Trichloroisocyanuric Acid" in Encyclopedia of Reagents for Organic Synthesis 2001, John Wiley & Sons: New York. DOI: 10.1002/047084289X.rt209
  2. ^ Barros, J. C. "Trichloroisocyanuric acid". Synlett 2005: 2115-2116. DOI: 10.1055/s-2005-872237 [1]

External links

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