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Product Name: Tetrachlorophthalic Anhydride
Chemical Formula: C8Cl4O3
CAS Number: 117-08-8
Use: Flame retardant intermediate, polyester resins, specialty chemicals
Supplier: Manufacturer information available on request
Emergency Contact: Local poison control, regional hazardous materials hotline
Signal Word: Danger
Hazard Classification: Acute toxicity (inhalation, dermal, oral); Eye irritation; Skin irritation; Respiratory sensitizer
Hazard Statements: Causes skin and serious eye irritation, may cause an allergic skin reaction, harmful if inhaled or swallowed, may cause respiratory irritation
Pictograms: Exclamation mark, Health hazard
Precautionary Statements: Avoid breathing dust, use personal protective equipment as required, wash hands thoroughly after handling, contaminated work clothing should not leave the workplace
Chemical: Tetrachlorophthalic anhydride
Synonyms: TCPA, 3,4,5,6-Tetrachlorophthalic anhydride
Purity: >98% by weight
Impurities: Phthalic anhydride derivatives < 2%
Eye Contact: Flush eyes with plenty of water for at least 15 minutes, remove contact lenses if possible, seek medical attention immediately
Skin Contact: Wash contaminated skin with soap and water, remove contaminated clothing, seek medical advice if irritation or rash persists
Inhalation: Move to fresh air, keep at rest, seek immediate medical help if breathing becomes difficult or symptoms develop
Ingestion: Rinse mouth, do not induce vomiting, get medical attention
Suitable Extinguishing Media: Dry chemical, CO2, foam, water spray
Unsuitable Extinguishing Media: Do not use strong water jets
Fire Hazards: Toxic and corrosive gases like hydrogen chloride, phosgene, and carbon oxides arise during combustion
Firefighter Protection: Full protective clothing, self-contained breathing apparatus
Personal Precautions: Use dust mask, chemical goggles, gloves; ventilate area as much as possible
Environmental Precautions: Prevent powder from entering drains, surface water, or soil
Cleanup Methods: Sweep up without creating dust, place in a labeled, sealed container for disposal, wash area thoroughly after removal
Handling: Avoid dust generation, wear appropriate PPE including gloves and goggles, wash hands before eating and after work shifts
Storage: Store in tightly closed containers, keep in cool, ventilated area away from moisture, acids, and bases, segregate from food and feedstuffs
Occupational Exposure Limit: Not established for TCPA, but minimize exposure
Engineering Controls: Use local exhaust ventilation, process enclosure, eye wash stations near use points
Respiratory Protection: Approved respirator if exposure limits are approached
Skin Protection: Chemical-resistant gloves, long sleeves, chemical aprons
Eye Protection: Chemical splash goggles
Hygiene: No eating, drinking, or smoking in work area, wash thoroughly after handling
Appearance: White to pale cream powder or crystals
Odor: Slight pungent
Molecular Weight: 303.89 g/mol
Melting Point: 270–275°C
Boiling Point: Decomposes before boiling
Flash Point: Not applicable
Solubility: Slightly soluble in water, soluble in chlorinated solvents
Specific Gravity: 1.9–2.0
Vapor Pressure: Negligible at room temperature
Stability: Stable under normal use conditions
Hazardous Reactions: Reacts with bases, amines, strong oxidizers, moisture
Hazardous Decomposition Products: Hydrogen chloride, phosgene, carbon monoxide, carbon dioxide
Polymerization: Will not occur under recommended storage and handling
Acute Toxicity: Inhalation causes respiratory irritation; effects from ingestion and skin absorption include nausea, headache, rash
Chronic Effects: Repeat skin contact can cause dermatitis, chronic exposure may sensitize or trigger asthma-like symptoms
Carcinogenicity: Not classified as carcinogenic under IARC, NTP, OSHA
Mutagenicity: No evidence reported in publicly available studies
Persistence and Degradability: Not readily biodegradable in aquatic environments
Bioaccumulation: Low to moderate bioaccumulation potential
Aquatic Toxicity: Harmful to fish and other aquatic organisms at elevated concentrations
Mobility in Soil: Binds to organic matter, mobility limited in most soils
Waste Handling: Dispose of contents and container in accordance with local, regional, and national legislation
Recommended Method: Incineration in approved facility
Contaminated Packaging: Rinse containers, then process as controlled waste
UN Number: 3261
Proper Shipping Name: Corrosive Solid, Acidic, Organic, n.o.s. (Tetrachlorophthalic anhydride)
Transport Hazard Class: 8 (Corrosive substances)
Packing Group: II
Environmental Hazards: Marine pollutant
Special Precautions: Protect containers from physical damage, avoid shipment with incompatible substances
OSHA: Product covered under Hazard Communication Standard
TSCA: Listed in the United States Toxic Substances Control Act Inventory
REACH: Meets European Union registration standards
WHMIS Classification: D2B (Toxic), E (Corrosive material)
SARA Title III: Not listed as an extremely hazardous chemical
Labeling Requirements: Pictograms, signal words, and hazard statements as required by local and international regulations
