Product Name: 3,4-Ethylenedioxythiophene
Synonyms: EDOT, 3,4-ethylenedioxythiophene
Chemical Formula: C6H6O2S
CAS Number: 126213-50-1
Recommended Use: Monomer in polymer synthesis, conductive polymers
Manufacturer: Laboratory and specialty chemical suppliers
Contact Information: Emergency contact on safety label or manufacturer’s datasheet
Emergency Phone: Available on container label or supplier sheet, generally includes 24-hour health and safety services or Poison Control Center
Hazard Classification: Flammable liquid, skin and eye irritant, limited acute toxicity documented in mammals
Signal Word: Warning
Hazard Statements: Causes skin and eye irritation, may cause respiratory discomfort if inhaled, gives off inflammatory vapors
Pictograms: Flame, Exclamation mark
Precautionary Statements: Avoid breathing vapor or mist, use protective equipment, keep away from sparks and heat, container closure must be grounded to prevent static discharge
Routes of Exposure: Inhalation, skin contact, ingestion, eye contact
Potential Signs and Symptoms: Redness, coughing, sore throat, headache, mild burns on skin contact
Chemical Name: 3,4-Ethylenedioxythiophene
Concentration: Typically 98% or greater in laboratory specimens
Chemical Family: Heterocyclic organosulfur compound
Impurities or Stabilizing Additives: Trace moisture, minute oligomers, no stabilizers listed for typical lots
Relevant Regulatory Numbers: EINECS 603-793-1, REACH registration if sourced in or to EU
Inhalation: Remove affected person to fresh air, loosen clothing, seek medical help if symptoms persist
Skin Contact: Remove contaminated clothing, rinse with water and soap, medical examination if irritation continues
Eye Contact: Rinse immediately with plenty of clean water, hold eyelids apart, seek medical advice if discomfort lasts longer than minutes
Ingestion: Rinse mouth out, drink water if not drowsy, never give anything by mouth to unconscious individual, consult healthcare provider
Notes for Doctor: Symptomatic treatment, monitor for chemical pneumonia where inhalation is suspected
Suitable Extinguishing Media: Dry chemical, CO2, alcohol foam, avoid water jets
Special Hazards: Releases irritating or toxic fumes including CO, CO2, SOx under combustion
Protective Equipment for Firefighters: Self-contained breathing apparatus, full body suit, boots, fire-resistant gloves
Specific Fire-Fighting Procedures: Prevent run-off from contaminating waterways, remove containers from fire if safe, cool tanks and drums with water spray
Unusual Fire Hazards: Flammable liquid, vapor may travel significant distance to ignition source
Personal Precautions: Evacuate non-essential staff, ventilate area, remove sources of ignition
Protective Equipment: Wear gloves, goggles, respirator with organic vapor cartridge, lab coat
Spill Containment: Dike and absorb with spill-control material, non-sparking tools only
Methods for Clean-up: Scoop into sealable container for disposal, wash area with detergent and water, ventilate
Environmental Precautions: Stop spill entering sewers, drains, or water sources, inform local authorities if environmental release occurs
Disposal of Contaminated Material: Place in appropriate chemical waste drum for hazardous waste collection
Safe Handling: Work in chemical fume hood, keep containers closed, avoid static discharge, minimize exposure through gloves and splash goggles
Hygiene Measures: Don’t eat, drink, or smoke where product is used, wash hands thoroughly after use
Storage Conditions: Store in original container, tightly closed, in cool, well-ventilated, flammable-proof area
Compatibility: Keep away from strong oxidizers, acids, alkalis, heat, open flames
Incompatible Containers: Avoid unlined steel, reactive plastics, containers prone to static build-up
Engineering Controls: Fume hood, explosion-proof ventilation, ground and bond equipment
Occupational Exposure Limits: No specific national limit, minimize exposure to lowest practical level
Personal Protective Equipment: Nitrile or neoprene gloves, tightly fitting safety glasses or chemical goggles, lab coat or coverall, closed-toe chemical resistant shoes
Respiratory Protection: Respirator if vapor exceeds safe levels, organic vapor cartridge, supplied air for confined spaces
Monitoring Methods: Regular leak and vapor monitoring, personal badge detectors
Appearance: Clear colorless to light yellow, oily liquid
Odor: Pungent, unknown odor threshold
Molecular Weight: 142.18 g/mol
Boiling Point: About 180°C
Melting Point: -11°C
Flash Point: Around 90°C
Autoignition Temperature: 320°C
Solubility: Only slightly soluble in water, mixes well with most organic solvents
Density: 1.33 g/cm3 at 20°C
Vapor Pressure: Low, under 0.2 mbar at 20°C
Viscosity: Moderate
Partition Coefficient (log Kow): Estimated around 2
pH: Not applicable, neutral in water
Chemical Stability: Stable under typical storage, avoid high temperature or light
Hazardous Reactions: Rapid polymerization under acidic or catalytic conditions, sensitive to strong oxidizers
Incompatible Materials: Strong acids, bases, oxidizing or reducing agents
Decomposition Products: Burning yields CO, CO2, sulfur oxides, trace organic pyrolysis products
Conditions to Avoid: Open flames, heat, live sparks, incompatible substances, static discharge
Polymerization: May occur in presence of catalysts or excessive heat, generates heat
Likely Routes of Exposure: Inhalation, skin and eye contact
Acute Toxicity: Oral LD50 (rat) not well defined, inhalation of vapor causes respiratory irritation
Skin Corrosion/Irritation: Irritant, repetitive contact leads to dermatitis
Serious Eye Damage/Irritation: Causes redness, pain, possible chemical conjunctivitis
Respiratory Sensitization: Not firmly established, should avoid repeated or high-level exposures
Chronic Effects: Limited evidence of cumulative organ toxicity, not classified as carcinogen, mutagen, or reproductive toxin by major agencies
Other Data: Minor, reversible effects noted in animal tests, full toxicity profile not available
Aquatic Toxicity: Harmful to aquatic organisms in concentrated spill, limited long-term aquatic toxicity data
Persistence and Degradation: Degrades slowly under environmental conditions, likely enters environment via wastewater if not controlled
Bioaccumulation: Based on octanol-water partition coefficient, low to moderate tendency to bioaccumulate
Mobility in Soil: Migrates with water, binds to organic matter
Other Adverse Effects: No significant atmospheric hazard, but runoff and spills can harm aquatic life
Waste Disposal Methods: Send unused material and contaminated absorbents to licensed hazardous waste contractor, do not pour into drains or natural water
Packaging Disposal: Rinse and send containers to chemical waste facility, follow label instructions
Incineration Recommendations: Suitable for chemical incineration at authorized plants, with flue gas scrubbing
Regulatory Instructions: Follow local, state, and national hazardous waste disposal rules, keep detailed disposal record
UN Number: UN 2810
Proper Shipping Name: Toxic liquid, organic, n.o.s. (contains 3,4-Ethylenedioxythiophene)
Class: 6.1 (toxic liquid)
Packing Group: III
Label Requirements: Toxic, keep away from foodstuffs
Transport Notes: Use leak-proof, pressure-resistant packaging, secure containers during transport, provide emergency contact details and hazard labels
OSHA Regulations: Not specifically listed, observe general chemical hygiene standards
TSCA (USA): Listed or subject to reporting
EINECS (Europe): Registered under 603-793-1
REACH Status: Pre-registered or fully registered for large-volume use
SARA Title III: Not currently a listed extremely hazardous substance
WHMIS (Canada): Classified as hazardous material, workplace controls suggested
Other Local Laws: Subject to site-specific chemical management, environmental release reporting, manufacturer-specific right-to-know regulations
