Product Name: Triethylene Glycol Dimethacrylate
Synonyms: TEGDMA, 2-Propenoic acid, 2-methyl-, 1,1'-[2,2'-ethylenedioxydiethyl] ester
Chemical Formula: C14H22O6
CAS Number: 109-16-0
Recommended Uses: Crosslinking agent in resins, dental materials, coatings
Supplier: Provided by major chemical suppliers and dental material distributors
Contact Number for Emergency: Chemtrec: +1-800-424-9300
GHS Classification: Skin irritant, eye irritant, skin sensitizer
Hazard Statements: Causes skin irritation, causes serious eye irritation, may cause sensitization by skin contact
Pictograms: Exclamation mark
Signal Word: Warning
Precautionary Statements: Wear protective gloves, protective clothing, eye protection, wash skin thoroughly after handling, avoid skin contact
Potential Routes of Entry: Skin contact, eye contact, inhalation of vapors, ingestion
Chemical Name: Triethylene Glycol Dimethacrylate
Common Name: TEGDMA
Concentration: ≥98%
Impurities: Traces of hydroquinone as stabilizer
EC Number: 203-652-6
Other Components: None significant for hazard
Inhalation: Move person to fresh air, get medical attention if symptoms continue
Skin Contact: Remove contaminated clothing, rinse skin with water, wash with soap, seek attention for persistent irritation
Eye Contact: Rinse cautiously for several minutes, remove contact lenses, seek medical help for persistent discomfort
Ingestion: Rinse mouth, drink water, do not induce vomiting, seek immediate medical advice
Most Important Symptoms: Redness, irritation, allergic reactions on skin
Medical Attention and Treatment: Symptomatic and supportive treatment
Suitable Extinguishing Media: Carbon dioxide, dry chemical powder, foam
Unsuitable Extinguishing Media: Direct water jet
Special Hazards: Vapors may form explosive mixtures with air under certain conditions, toxic fumes of carbon oxides and methacrylates may be released
Protective Equipment for Firefighters: Full protective suit and self-contained breathing apparatus
Firefighting Procedure: Evacuate area, keep containers cool with water spray, avoid inhalation of fumes
Personal Precautions: Wear gloves, goggles, chemical-resistant clothing
Environmental Precautions: Do not allow to enter drains, surface water, or soil
Methods for Clean-Up: Absorb with inert granular material (e.g. sand), place in depolluted containers, ventilate area, clean residues with detergent
Emergency Procedures: Evacuate unprotected personnel, ensure proper ventilation
Precautions for Safe Handling: Use only in well-ventilated areas, avoid prolonged or repeated skin contact, handle in accordance with good industrial hygiene
Conditions for Safe Storage: Store in tightly closed container, in a cool, dry, well-ventilated place, keep away from heat, sparks, open flames
Incompatible Materials: Oxidizers, free radical initiators, strong acids or bases
Storage Class: Organic peroxides and methacrylates
Occupational Exposure Limit: No specific limits established, minimize exposure by engineering controls
Engineering Controls: Local exhaust ventilation, process enclosures
Personal Protection: Nitrile or neoprene gloves, safety goggles, lab coat, use chemical cartridge respirator if ventilation inadequate
Hygienic Practices: Avoid eating, drinking or smoking during use, wash hands after handling, prevent contact with skin and eyes
Appearance: Clear, colorless to pale yellow, viscous liquid
Odor: Mild, sweet methacrylate odor
Odor Threshold: Not available
pH: Not applicable
Melting Point: -80°C
Boiling Point: 210°C at 101.3 kPa
Flash Point: 120°C (closed cup)
Evaporation Rate: Not determined
Flammability: Combustible liquid
Vapor Pressure: 0.01 mmHg at 20°C
Relative Density: 1.08–1.13 g/cm³ at 20°C
Solubility: Slightly soluble in water, miscible with organic solvents
Partition Coefficient: log Kow ≈ 2.0
Auto-ignition Temperature: 280°C
Decomposition Temperature: Not established
Viscosity: 8–12 mPa·s at 25°C
Chemical Stability: Stable under normal temperatures and recommended handling
Possibility of Hazardous Reactions: May polymerize under heat or upon contact with free radical initiators
Conditions to Avoid: Heat, light, sources of ignition
Incompatible Materials: Strong oxidizing agents, peroxides, strong acids and bases
Hazardous Decomposition Products: Carbon oxides, irritating vapors, methacrylate monomers
Routes of Exposure: Skin, eyes, inhalation, ingestion
Acute Toxicity: Oral LD50 (rat) > 5000 mg/kg
Skin Corrosion/Irritation: Causes irritation, possible allergic contact dermatitis
Serious Eye Damage/Irritation: Causes severe irritation
Respiratory or Skin Sensitization: Skin sensitizer by repeated or prolonged exposure
Germ Cell Mutagenicity: In vitro studies indicate weak mutagenic potential
Carcinogenicity: Not listed as carcinogenic in IARC, NTP, ACGIH
Reproductive Toxicity: Not expected at typical workplace exposure
Other Info: Repeated exposure can cause skin dryness, cracking, allergic responses
Ecotoxicity: Toxic to aquatic life with long lasting effects, fish LC50/EC50: 10–100 mg/L (estimate)
Persistence and Degradability: Moderately biodegradable, slowly degrades in aquatic environments
Bioaccumulative Potential: Low to moderate (log Kow ≈ 2)
Mobility in Soil: Expected to have low mobility due to low water solubility
Other Adverse Effects: Avoid uncontrolled release to environment, labeled as hazardous for aquatic organisms
Disposal Methods: Incinerate at licensed facility, comply with local, regional, national regulations
Content Disposal: Do not pour into drains or waterways
Contaminated Packaging: Collect and dispose as hazardous waste, ensure containers are empty before recycling or disposal
UN Number: Not classified as dangerous under most transportation regulations
UN Proper Shipping Name: Not regulated
Transport Hazard Class: Non-hazardous for ground, sea, air
Packing Group: Not assigned
Marine Pollutant: No-specific designation
Special Precautions: Keep away from heat, secured closures during transit
Major Regulations: Listed in TSCA (US), EINECS (EU), AICS (Australia), DSL (Canada)
OSHA Hazard Communication: Classified as hazardous chemical
SARA Title III: Not listed under Sections 302, 304, 313
REACH Status: Registered and permitted for industrial uses
Labeling Requirements: GHS compliant, include signal words, pictograms, hazard statements
Other Laws: Controlled under workplace exposure regulations for chemical hazards in many jurisdictions
