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Chemical: Trichloroisocyanuric acid
Common Names: TCCA, Trichlor, Pool Chlorine Tablets
CAS Number: 87-90-1
Use: Pool disinfection, industrial bleaching, water treatment
Appearance: White powder, granular, or tablet form
Odor: Slight chlorine odor
Hazard Classes: Strong oxidizer, corrosive to metals, acute toxic effects
Risk to Health: Can cause severe irritation or burns to skin and eyes, harmful if inhaled or swallowed
Environment: Highly toxic to aquatic life, persistence in water bodies
GHS Symbols: Corrosive, environmental hazard, health hazard
Main Ingredient: Trichloroisocyanuric acid (purity varies by product)
Other Components: May include minor stabilizers but typically near pure form
Nature: No commonly present dilutants or fillers
Inhalation: Move to fresh air, support breathing as needed, seek medical attention for coughing or shortness of breath
Skin Contact: Remove contaminated clothes, wash area using plenty of water, seek immediate help for skin burns
Eye Contact: Rinse eyes gently but thoroughly with water for several minutes, force eyelids open carefully if needed, see a doctor
Ingestion: Do not induce vomiting, rinse mouth, get to emergency care
Advice for Physicians: Supportive care, treat burns and respiratory issues, monitor for toxic effects
Suitable Extinguishing Media: Use water spray or fog, dry chemical powder, avoid carbon dioxide or foam which may be ineffective
Hazards from Combustion: Releases toxic chlorine and nitrogen oxides under fire
Protective Equipment: Full turnout gear, self-contained breathing apparatus, avoid inhalation of gases
Explosion Risk: Strong oxidizer, reacts with organics to generate heat and gas, possible explosive decomposition
Personal Precautions: Evacuate non-essential personnel, ventilate area, put on gloves, goggles, and protective clothing
Environmental Precautions: Prevent runoff to drains or waterways, report sizeable spills to authorities
Cleanup Methods: Sweep up carefully without creating dust, use non-combustible clean-up tools, transfer to labeled container for disposal
Avoid: Water contact with spill in open areas, combining with flammable or organic materials
Handling: Only open packaging in well-ventilated spots, avoid contact with skin or eyes, never mix with other chemicals especially ammonia or acids
Storage: Keep containers dry, cool, away from heat or sunlight, segregate from acids, organics, and metals, use corrosion-resistant bins, secure against unauthorized access
Ventilation: Local exhaust always recommended inside enclosed spaces
Respiratory Protection: Masks or respirators for dust or potential gas exposure
Skin Protection: Impermeable gloves, long sleeves, cover all exposed skin
Eye Protection: Chemical splash goggles, face shield if splashing possible
Work Hygiene: Wash hands after use, don't eat or drink nearby, remove contaminated clothes immediately
Physical State: Crystalline powder, granules, or tablets
Color: Bright white
Odor: Characteristic mild chlorine
Melting Point: Decomposes above 225°C
Solubility: Highly soluble in water, releases hypochlorous acid
Stability: Stable in original packaging, reacts with water or humidity
Reactivity: Highly reactive with water, acids, ammonia, reducing agents, metals
Stability: Long shelf life if dry and secure
Decomposition: Strong heat or contaminants can trigger rapid reaction and release of hazardous gases
Avoid: Contamination with organic materials, exposure to heat, sparks, and moisture
Acute Toxicity: Harmful to respiratory tract and digestive system, causes severe skin and eye burns
Chronic Effects: Repeated exposure leads to chronic respiratory symptoms, dermatitis, or chemical burns
Sensitization: No common evidence but contact allergies possible
Routes of Exposure: Inhalation, ingestion, skin and eye contact
Aquatic Toxicity: Extremely toxic to fish and amphibians, persistent in surface waters
Bioaccumulation: Risk of chlorine and byproducts building up in water bodies, affecting wildlife
Soil Mobility: Travels through soil, risks groundwater contamination near careless disposal sites
Breakdown: Degrades slowly, especially in absence of sunlight or sufficient dilution
Waste Treatment: Secure hazardous waste route, incineration at licensed facility or neutralization with expert oversight
Container Disposal: Never reuse, triple rinse then manage as hazardous material
Local Laws: Follow hazardous waste and chemical disposal regulations strictly to prevent environmental harm
UN Number: UN 2468
Class: Oxidizing solid, Class 5.1
Packaging: Sealed, corrosion-resistant containers, secure against moisture and breakage
Transport Risk: Clearly label with hazard signs, do not ship with food, organics, acids, or fuel
Restrictions: Subject to international, national, and local rules on hazardous materials by sea, road, and air
Regulations: Controlled under chemical safety and dangerous goods acts in most countries, mandatory hazard labeling
Worker Safety: Strict occupational exposure limits exist where TCCA is manufactured or handled in bulk
Environmental Rules: Usage and release strictly controlled by water safety and pollution prevention authorities
Community Right-to-Know: Users in many regions must communicate hazards to neighbors and emergency services if large quantities are stored
