Material Safety Data Sheet: 1,6-Hexanediol Diacrylate

Identification

Chemical Name: 1,6-Hexanediol Diacrylate
Synonyms: HDDA, 1,6-Diacryloyloxyhexane
CAS Number: 13048-33-4
Recommended Use: Monomer for UV-curable coatings, inks, adhesives, sealants, and composites
Supplier Details: Name, address, and emergency contact of supplier/manufacturer must be on label and documentation
Emergency Contact: National Poison Center, company emergency phone line

Hazard Identification

GHS Classification: Eye irritation (Category 2A), Skin sensitization (Category 1), Skin irritation (Category 2), Aquatic Chronic (Category 3)
Signal Word: Warning
Hazard Statements: Causes skin irritation; may cause allergic skin reaction; causes serious eye irritation; harmful to aquatic life with long lasting effects
Pictograms: Exclamation mark
Precautionary Statements: Wear protective equipment, avoid contact with skin and eyes, avoid breathing vapor or mist, wash hands thoroughly after handling, do not release into the environment

Composition / Information on Ingredients

Chemical Identity: 1,6-Hexanediol Diacrylate
CAS Number: 13048-33-4
Concentration: Typically over 95% by weight
Impurities: Trace amounts of acrylic acid, inhibitors such as hydroquinone or MEHQ may be present

First Aid Measures

Inhalation: Move to fresh air, provide artificial respiration if breathing stops, seek immediate medical help
Skin Contact: Immediately wash with soap and water for at least 15 minutes, remove contaminated clothing and shoes, seek medical advice for persistent irritation
Eye Contact: Rinse eyes with water for at least 15 minutes keeping eyelids open, remove contact lenses, continue rinsing, contact an ophthalmologist
Ingestion: Rinse mouth with water, do not induce vomiting, give water to drink if patient is conscious, seek immediate medical attention
Most Important Symptoms: May irritate airways, trigger allergic reactions, cause redness or pain in eyes and skin

Fire-Fighting Measures

Suitable Extinguishing Media: Carbon dioxide, dry chemical, foam, water spray (do not use strong water jet)
Hazards: Vapors may form explosive mixtures with air; thermal decomposition can produce toxic fumes including carbon oxides
Protective Equipment: Full protective clothing, self-contained breathing apparatus for firefighters
Specific Hazards: Material may polymerize violently if heated in a confined space; cool containers with water spray

Accidental Release Measures

Personal Precautions: Avoid inhalation, prevent skin and eye contact, wear suitable personal protection (goggles, gloves, chemical-resistant clothing)
Environmental Precautions: Prevent entry into sewers, waterways, or soil; notify authorities in case of significant spillage
Cleanup Methods: Absorb with inert material such as sand or diatomaceous earth, transfer to labeled waste containers, ventilate area, decontaminate surfaces with soap and water

Handling and Storage

Precautions: Use only in well-ventilated areas, avoid breathing vapors, minimize dust and vapor formation, ground and bond containers when transferring
Safe Storage Conditions: Store tightly sealed in original container, protect from sunlight, heat, sources of ignition, and strong oxidizers
Incompatible Materials: Strong acids, oxidizers and bases; avoid sources of free radical initiators, peroxides, high temperatures

Exposure Controls and Personal Protection

Exposure Limits: No established workplace exposure limits for this substance
Engineering Controls: Use mechanical ventilation or local exhaust to control vapors, ensure emergency eyewash and shower stations nearby
Personal Protective Equipment: Protective gloves (nitrile recommended), chemical splash goggles, laboratory coat or apron, suitable respiratory protection if vapor risk present
Hygiene Measures: Do not eat, drink, or smoke while using this chemical, wash hands and face after handling, remove contaminated clothing before entering eating areas

Physical and Chemical Properties

Appearance: Clear, colorless liquid
Odor: Slight, acrylate-like
Odor Threshold: Not determined
pH: Not determined
Melting Point/Freezing Point: -38°C
Boiling Point: 113°C at 1 mmHg (low pressure)
Flash Point: 106°C (closed cup)
Evaporation Rate: Not available
Flammability: Not classified as highly flammable
Vapor Pressure: Very low at 20°C
Vapor Density: Greater than air
Relative Density: 1.01 to 1.02 g/cm³
Solubility: Slightly soluble in water, miscible with many organic solvents
Partition Coefficient (n-octanol/water): Log Kow: ~2.3
Auto-Ignition Temperature: Not determined
Decomposition Temperature: Not specified
Viscosity: Low to medium viscosity at room temperature

Stability and Reactivity

Chemical Stability: Generally stable under normal handling and storage conditions, sensitive to light, air, and high temperature
Reactivity: May react with oxidizers and strong acids
Hazardous Reactions: Risk of exothermic polymerization in presence of heat, peroxides, or free radicals
Conditions to Avoid: Heat, open flames, incompatible materials, strong UV and sunlight
Hazardous Decomposition Products: Decomposition may produce carbon monoxide and acrid smoke

Toxicological Information

Acute Toxicity: Oral and dermal LD50 (rat): >5000 mg/kg (limited data; low acute toxicity)
Skin Corrosion/Irritation: Causes skin irritation based on test results, may provoke dermatitis on prolonged exposure
Eye Damage/Irritation: Serious eye irritation may result from accidental contact
Respiratory/Skin Sensitization: May cause allergic reactions after repeated exposure, especially in sensitized individuals
Carcinogenicity: No classified carcinogenic potential by IARC, NTP, or OSHA
Mutagenicity/Reproductive Toxicity: Mutagenicity studies show negative or inconclusive- refer to supplier’s dossier
Other Effects: Repeated overexposure could aggravate pre-existing skin, eye, or respiratory conditions

Ecological Information

Ecotoxicity: Toxic to aquatic organisms with long-term adverse effects at high concentrations, low water solubility limits direct risk under most use patterns
Persistence and Degradability: Not readily biodegradable in standard tests; slow degradation expected
Bioaccumulative Potential: Moderate potential (log Kow ~2.3), risk to aquatic life from high spills or persistent discharge
Mobility in Soil: Low to moderate mobility, will partition mainly to soil and sediments
Other Adverse Effects: No ozone depletion or global warming activity, limited risk in well-managed settings

Disposal Considerations

Disposal Methods: Dispose in accordance with local, regional, and national regulations, incinerate in approved facility whenever possible, avoid landfill or direct discharge to water
Packaging: Triple rinse containers, puncture and send for recycling or disposal, follow applicable container disposal requirements
Precautions: Do not reuse empty packaging; avoid release to the environment; keep away from food and animal feed

Transport Information

UN Number: UN 3082
Proper Shipping Name: Environmentally hazardous substance, liquid, n.o.s. (contains 1,6-Hexanediol Diacrylate)
Transport Hazard Class: 9 (Miscellaneous Dangerous Goods)
Packing Group: III
Labels Required: Environmentally hazardous substance, miscellaneous
Marine Pollutant: Yes
Special Precautions: Avoid spillage during transit, ensure containers are tight and upright, mark according to IMDG, ADR, IATA standards

Regulatory Information

TSCA: Listed on the US Toxic Substances Control Act inventory
EINECS/ELINCS: Listed in the European inventory
REACH Registration: Registered or pre-registered as required for import or manufacture in the EU
OSHA: Regulated as hazardous chemical under OSHA Hazard Communication Standard
SARA Title III: Not subject to Section 302, 304, or 313 reporting
Other Regulations: Check state and local requirements, consult workplace safety authorities and country-specific chemical safety directives