Product Name: 1,6-Hexanediol Dimethacrylate
CAS Number: 6606-59-3
Synonyms: HEMA Dimethacrylate, 1,6-HDMA
Use: Mainly used as a crosslinker in polymer and resin production, adhesives, coatings, dental materials.
Manufacturer: Chemical company address, contact telephone, emergency phone number, email for more information.
Classification: Eye Irritation (Category 2), Skin Sensitizer (Category 1), Skin Irritation (Category 2), Not classified as highly flammable.
Label Elements: GHS label with exclamation mark.
Hazard Statements: Causes skin irritation, may cause allergic skin reaction, causes serious eye irritation.
Precautionary Statements: Avoid breathing vapor, wear protective gloves/eye protection, wash thoroughly after handling, if on skin wash with water, in case of eye contact rinse cautiously for minutes.
Other Hazards: Potential to form explosive peroxides with exposure to air and heat over long periods.
Chemical Identity: 1,6-Hexanediol Dimethacrylate
Chemical Formula: C14H22O4
Concentration: Typically 99% or above for industrial use
Impurities: May contain trace levels of methacrylic acid or hydroquinone as a stabilizer.
Specific Ingredients: No other additives commonly present at reportable concentrations.
Eye Contact: Flush eyes with copious amounts of water for 15+ minutes, holding eyelids open, seek immediate medical attention, remove contact lenses if present.
Skin Contact: Wash skin with soap and water, remove contaminated clothing, get medical help if irritation or rash develops.
Inhalation: Move person to fresh air, keep comfortable for breathing, provide oxygen if breathing is difficult, call for medical attention.
Ingestion: Rinse mouth with water, never give anything by mouth to an unconscious person, get medical help right away, do not induce vomiting unless directed by medical professional.
Notes to Physicians: Treat symptomatically, monitor for allergic reactions, focus on skin and respiratory symptoms.
Suitable Extinguishing Media: Use water spray, foam, dry chemical, CO2, avoid heavy water stream.
Fire Hazards: May emit toxic fumes under fire, especially carbon oxides and acrid smoke.
Protective Equipment: Firefighters need full protective gear and self-contained breathing apparatus.
Special Procedures: Approach fire from upwind, remove undamaged containers from danger area if safe, cool containers with water spray to prevent pressure build up.
Explosion Risk: Containers may burst from internal pressure when heated.
Personal Precautions: Put on gloves, goggles, suitable chemical-resistant clothing, ensure adequate ventilation.
Environmental Precautions: Prevent release into drains, sewers, soil, or waterways.
Methods for Clean Up: Absorb spillage with inert materials (sand, earth), transfer to containers for disposal, wipe area with non-sparking tools, avoid adding water directly to spilled material.
Emergency Procedures: Evacuate non-essential personnel, ventilate area, stop leak if safe.
Handling Precautions: Use in well-ventilated area, keep away from skin, eyes, and clothing, avoid breathing vapor, do not eat, drink, or smoke while using, use proper PPE.
Storage Conditions: Store in original, tightly sealed container in dry, cool, well-ventilated place, protect from direct sunlight, keep away from heat or ignition sources, segregate from acids, oxidizers, and reducing agents.
Incompatibilities: Strong oxidizers, strong acids, metal salts, azobisisobutyronitrile, organic peroxides.
Exposure Limits: No ACGIH or OSHA exposure limits specifically established; minimize exposure to vapors and skin.
Engineering Controls: Use fume hoods, local exhaust, secure eyewash station and safety shower nearby.
Eye Protection: Chemical splash goggles or safety glasses with side shields.
Skin Protection: Chemical-resistant gloves (nitrile, butyl rubber), long-sleeved clothing.
Respiratory Protection: Organic vapor respirator if ventilation inadequate.
Hygiene Measures: Wash hands after handling, do not reuse contaminated clothing without washing.
Appearance: Clear, colorless to pale yellow liquid.
Odor: Mild, characteristic acrylic odor.
Odor Threshold: Not determined.
pH: Not applicable.
Melting Point/Freezing Point: Below -50°C (liquid at room temperature).
Boiling Point: Approx. 120-130°C at 2 mm Hg (decomposes at higher temperatures).
Flash Point: Around 110°C (closed cup).
Evaporation Rate: Not available.
Flammability: Not highly flammable but combustible.
Vapor Pressure: Low at 20°C (approx. 0.01 mm Hg).
Vapor Density: Heavier than air.
Relative Density: 1.01 – 1.06 g/cm³.
Solubility: Slightly soluble in water, miscible with many organic solvents.
Partition Coefficient (log Kow): Estimated 2.3 – 2.8.
Auto-ignition Temperature: > 300°C.
Decomposition Temperature: Decomposes above 120-130°C.
Viscosity: 8-15 mPa·s at 25°C.
Chemical Stability: Stable under recommended storage, can polymerize on prolonged exposure to heat, light, or in presence of initiators.
Conditions to Avoid: Excess heat, sunlight, contamination, contact with peroxides.
Incompatible Materials: Oxidizing agents, acids, bases, metal salts.
Hazardous Decomposition Products: Carbon monoxide, carbon dioxide, unknown organics during fire.
Hazardous Polymerization: May occur when mixed with radical initiators, elevated temperatures, or if unstabilized.
Acute Toxicity: Low oral and dermal toxicity based on animal studies, but irritating to eyes and skin.
Skin Corrosion/Irritation: Irritating to skin, repeated exposure can cause dermatitis.
Eye Damage/Irritation: Irritating, may cause redness and pain.
Respiratory Effects: Inhalation of vapors may cause respiratory tract irritation, headache, dizziness.
Sensitization: May cause allergic skin reaction in sensitive individuals.
Mutagenicity/Carcinogenicity: No data showing carcinogenic potential, not listed as carcinogen by IARC, NTP, OSHA.
Chronic Effects: Prolonged or repeated exposure may result in skin drying, cracking, allergic response.
Ecotoxicity: Harmful to aquatic life, may cause long-lasting effects in aquatic environment.
Persistence and Degradability: Not rapid, not readily biodegradable in water under standard test methods.
Bioaccumulative Potential: Moderate potential based on octanol-water partition coefficient.
Mobility in Soil: Low to moderate, can migrate through soil to water table in liquid form.
Other Adverse Effects: Avoid discharge to environment, report spills to proper governmental agencies.
Waste Handling: Do not pour into sewers or drains, collect aqueous wash and absorbent material for incineration or disposal at licensed facility, follow local regulations.
Container Disposal: Empty containers may retain product residue; triple rinse, puncture, and dispose according to legal requirements.
Recycling: Consider solvent reclamation if contaminated with compatible solvent.
UN Number: Not regulated as dangerous good by major transport codes (DOT, IMDG, IATA) in most volumes.
Proper Shipping Name: Not classified as hazardous for shipping.
Transport Hazard Class: None assigned for ground/air/water.
Packing Group: None
Environmental Hazards: Not classified as marine pollutant but take precautions to prevent spills in transit.
Special Precautions: Secure containers upright and prevent from movement or leaking.
OSHA: Not specifically regulated under OSHA Hazard Communication Standard but requires SDS provision as hazardous chemical.
TSCA: Listed in Toxic Substances Control Act Inventory.
REACH: Registered in EU under REACH Regulations.
SARA Title III: Not listed under Sections 302, 313 as an extremely hazardous or reportable substance.
California Prop 65: Not on the list of chemicals known to the State of California to cause cancer or reproductive toxicity.
Other Listings: May appear on local and regional chemical inventories, consult country-specific regulations.
