Product Name: Tetraethylene Glycol Dimethacrylate
Synonyms: TEGDMA
CAS Number: 109-17-1
Chemical Formula: C14H22O6
Recommended Use: Used in polymer manufacturing, dental composites, adhesives, coatings
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GHS Classification: Skin Irritation (Category 2), Eye Irritation (Category 2A), Skin Sensitizer (Category 1), Toxic to Aquatic Life (Category 2)
Pictograms: Exclamation mark, Environment
Signal Word: Warning
Hazard Statements: Causes skin irritation; Causes serious eye irritation; May cause an allergic skin reaction; Toxic to aquatic life with long lasting effects
Precautionary Statements: Avoid breathing vapors or mist; Use protective gloves and eye protection; Contain spillages; Avoid release to the environment
Chemical Name: Tetraethylene Glycol Dimethacrylate
Synonyms: TEGDMA
Concentration: ≥95%
CAS Number: 109-17-1
Impurities or Stabilizing Additives: Minimal, refer to manufacturer specifications for trace quantities
Inhalation: Move person to fresh air, seek medical advice if symptoms persist
Skin Contact: Wash thoroughly with soap and plenty of water, remove contaminated clothing, seek medical attention for persistent irritation
Eye Contact: Flush eyes with plenty of water for at least 15 minutes, remove contact lenses, seek immediate medical attention
Ingestion: Rinse mouth, do not induce vomiting, seek medical attention
Most Important Symptoms: Irritation, allergic reaction, redness, itching
Suitable Extinguishing Media: Carbon dioxide, foam, dry chemical, water spray
Unsuitable Extinguishing Media: High pressure water stream may spread material
Specific Hazards: Emits toxic fumes (carbon oxides, irritating vapors) under fire conditions
Protective Equipment: Wear self-contained breathing apparatus and full protective gear
Special Procedures: Cool containers with water spray to prevent pressure build-up or explosion; evacuate area if required
Personal Precautions: Use appropriate personal protective equipment, ensure adequate ventilation, avoid inhalation and skin contact
Environmental Precautions: Prevent entry into drains, waterways, or soil
Containment Methods: Dike spilled material, absorb with inert material (sand, earth, vermiculite), transfer to suitable, labeled waste container
Cleanup Procedures: Ventilate area, clean thoroughly after removal of spill, decontaminate surfaces with detergent and water
Handling: Avoid physical contact with the substance, use in a well-ventilated space, prevent static discharge, follow industrial hygiene practices, wash hands after handling, do not eat, drink, or smoke while using
Storage: Store tightly closed in a cool, dry, well-ventilated area, keep away from sources of ignition, incompatible substances (acids, bases, oxidizers), protect from light, keep containers tightly sealed, avoid storing with foodstuffs or drinking water
Occupational Exposure Limits: No established limits for TEGDMA, but minimize exposure as a sensitizer
Engineering Controls: Use local exhaust ventilation, enclosed processes where possible
Personal Protective Equipment: Wear chemical-resistant gloves (nitrile, neoprene), safety goggles, face shield if splashing likely, chemical-resistant clothing
Respiratory Protection: Use suitable respirator if ventilation inadequate or during large spills, follow national guidelines
Work Hygiene Practices: Wash hands before breaks, after handling, do not wear contaminated clothing at worksite, launder clothing regularly
Appearance: Colorless to pale yellow clear liquid
Odor: Ester-like, mild
Odor Threshold: Not determined
pH: Not available
Melting Point/Freezing Point: -56°C
Boiling Point: 260°C (500°F) at 760 mmHg
Flash Point: 151°C (304°F)
Evaporation Rate: Not established
Flammability (Solid, Gas): Not applicable
Explosive Limits: Lower: Not determined; Upper: Not determined
Vapor Pressure: <0.01 mmHg at 20°C
Vapor Density: Not available
Relative Density: 1.08 g/cm3 at 20°C
Solubility: Slightly soluble in water; soluble in organic solvents
Partition Coefficient (n-octanol/water): log Kow ~1.42
Auto-ignition Temperature: 345°C
Decomposition Temperature: Not established
Viscosity: 9.6 cP at 25°C
Chemical Stability: Product may polymerize under heat, light, or with peroxides and radical formers
Reactivity: Stable under recommended storage conditions, hazardous polymerization may occur without stabilizers
Conditions to Avoid: Heat, open flame, UV light, incompatible substances
Materials to Avoid: Oxidizing agents, strong acids, alkalis, reducing agents
Hazardous Decomposition Products: Methacrylic acid, carbon oxides, other irritating or toxic fumes when heated or during combustion
Acute Toxicity: Oral LD50 (rat): >5000 mg/kg; Dermal LD50 (rabbit): >5000 mg/kg
Skin Corrosion/Irritation: Causes skin irritation
Serious Eye Damage/Irritation: Causes serious eye irritation
Respiratory or Skin Sensitization: May cause allergic skin reaction by repeated contact
Carcinogenicity: Not classified as carcinogen by IARC, NTP, ACGIH
Mutagenicity: Not classified as mutagen, but some studies suggest possible genotoxicity in cell cultures
Other Effects: Prolonged or repeated exposure can cause dermatitis, eczema, or sensitization; overexposure may aggravate asthma or allergies
Ecotoxicity: Toxic to aquatic life with long lasting effects (guppy LC50 3.6 mg/L, Daphnia EC50 25 mg/L)
Persistence and Degradability: Not readily biodegradable under standard OECD tests; potential for bioaccumulation exists
Bioaccumulative Potential: Moderate based on log Kow
Mobility in Soil: Low mobility in soil, slightly soluble in water; may leach slowly to groundwater
Other Adverse Effects: Product has the potential to disrupt aquatic organisms through direct toxicity and potential for polymerization in waterways
Waste Treatment Methods: Dispose of remaining product and contaminated packaging as hazardous waste
Methods of Disposal: Incinerate in approved facility, comply with local, regional, and national regulations; do not discharge to surface waters or drains
Container Disposal: Triple rinse, puncture, then dispose of according to local regulations; do not attempt to reuse empty containers
Precautions: Avoid release to environment, do not mix with other waste, ensure waste handlers wear suitable protection
UN Number: Not classified as dangerous for transport in most jurisdictions
Proper Shipping Name: Not regulated for transport
Transport Hazard Class: Not applicable
Packing Group: Not applicable
Environmental Hazards: Marine pollutant (recommendation to label if shipped in bulk)
Transport Precautions: Secure containers, avoid high temperatures, transport in compliance with local and international laws
OSHA: Not specifically regulated, but considered hazardous
TSCA: Listed
REACH: Registered, refer to ECHA database for latest registration status and guidance
Inventory Status: Listed in Canada DSL/NDSL, EU EINECS/ELINCS, Australia AICS, China IECSC, Japan ENCS, Philippines PICCS
California Proposition 65: TEGDMA not listed
Other Standards: Comply with workplace exposure and environmental protection standards in region
Labeling Requirements: GHS-compliant hazard and precautionary statements required on containers
