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Trichloroisocyanuric acid

CAS Number
87-90-1
EC Number
201-782-8
Chemical Formula
C3Cl3N3O3
Molecular Weight
232.41 g/mol

Description

Trichloroisocyanuric acid ( CAS 87-90-1 ), commonly known as TCCA, is a chlorine-based oxidizing agent and biocide used across water treatment, sanitation, and industrial processing. It delivers controlled, sustained chlorine release, making it a preferred active ingredient where consistent disinfection or bleaching performance is required for various applications. In water treatment, TCCA is the active compound in swimming pool and potable water disinfection tablets, where its slow-dissolving profile maintains residual chlorine levels over time. Textile and paper processors use it as a bleaching agent to whiten fibers and pulp without the handling risks associated with liquid chlorine or other volatile chemicals. Food processing facilities apply TCCA-based solutions for equipment and surface sanitation, meeting hygiene standards where chlorine-releasing disinfectants are approved for use. In personal care manufacturing, it functions as a preservative and antimicrobial active in certain industrial cleaning formulations targeting microbial contamination and growth. TCCA is supplied as white tablets, granules, and powder, with tablet size varying by application from small pool tabs to larger industrial formats for heavy-duty use. Standard commercial concentrations are typically 90% available chlorine content. Technical and industrial grades are the primary market forms available for global distribution. Contact us for supply of Trichloroisocyanuric acid Request Quote

Other Names (Synonyms)

trichloroiminocyanuric acid | trichlorocyanuric acid | 1,3,5-trichloro-1,3,5-triazine-2,4,6(1H,3H,5H)-trione | TCCA | Symclosen | Chloreal | Trichloro-s-triazinetrione | Fi Clor 91

Key Technical Features

  • High Purity Grade standard
  • Consistent Batch Quality
  • Full Regulatory & REACH Support
  • Global Logistics Network enabled

Physical Properties

Melting Point47-246 °C (decomp)
Boiling Point272.3±23.0 °C(Predicted)
Density2.07
Flash Point121°C
Appearancewhite to light yellow crystal powde
ColorWhite to almost white
Odorchlorine odor
FormPowder or Granules
Water Solubility1.2 g/100mL (25 ºC)
Vapor Pressure0.001-0.002Pa at 20-25℃
pH2.0-2.7 (10g/l, H2O, 20℃)
Log P-1.31-0.94 at 25℃

Safety & Handling

Danger
GHS03· OxidizerGHS07· IrritantGHS09· EnvironmentGHS05· Corrosive

Hazard Statements

H272May intensify fire; oxidizer
H302Harmful if swallowed
H314Causes severe skin burns and eye damage
H315Causes skin irritation
H318Causes serious eye damage
H319Causes serious eye irritation
H332Harmful if inhaled
H335May cause respiratory irritation
H400Very toxic to aquatic life
H410Very toxic to aquatic life with long lasting effects

Precautionary Statements

P210Keep away from heat, hot surfaces, sparks, open flames and other ignition sources. No smoking.
P220Keep away from clothing and other combustible materials.
P260Do not breathe dust/fume/gas/mist/vapours/spray.
P261Avoid breathing dust/fume/gas/mist/vapours/spray.
P264Wash … thoroughly after handling.
P270Do not eat, drink or smoke when using this product.
P271Use only outdoors or in a well-ventilated area.
P273Avoid release to the environment.
P280Wear protective gloves/protective clothing/eye protection/face protection.
P316Get emergency medical help immediately.
P317Get emergency medical help.
P319Get medical advice/attention if you feel unwell.
P321Specific treatment (see … on this label).
P330Rinse mouth.
P363Wash contaminated clothing before reuse.
P391Collect spillage.
P405Store locked up.
P501Dispose of contents/container in accordance with local regulations.
P265Wash … thoroughly after handling.
P317Get emergency medical help.
P352IF ON SKIN: Wash with plenty of water.
P340IF INHALED: Remove person to fresh air and keep comfortable for breathing.
P317Get emergency medical help.
P317If eye irritation persists: Get medical advice/attention. Get emergency medical help.
P364Take off contaminated clothing and wash it before reuse.
P378Use … for extinction.
P233Store in a well-ventilated place. Keep container tightly closed.
P331Rinse mouth. Do NOT induce vomiting.
P354IF ON SKIN: Take off immediately all contaminated clothing. Rinse skin with water/shower.
P338IF IN EYES: Rinse cautiously with water for several minutes. Remove contact lenses, if present and easy to do. Continue rinsing.
P338IF IN EYES: Rinse cautiously with water for several minutes. Remove contact lenses, if present and easy to do. Continue rinsing.

Trade & Regulatory

HS Code29336980
UN Number2468
ADR Class5.1
Packing GroupII
Storage Class5.1B - Oxidizing hazardous materials
WGK (Germany)2