Ascent Petrochem Holdings Co., Limited

Knowledge

MSDS: 1,6-Hexanediol Diacrylate

Identification

Product Name: 1,6-Hexanediol Diacrylate
Chemical Formula: C12H18O4
CAS Number: 13048-33-4
Synonyms: HDDA, Hexanediol diacrylate
Recommended Use: Commonly blended into UV-curable coatings, inks, adhesives, electronics, and 3D printing resins
Supplier Details: Company name, address, telephone, emergency contact (as per supplier documentation)

Hazard Identification

GHS Classification: Skin Irritant (Category 2), Eye Irritant (Category 2), Sensitizer - Skin (Category 1), Aquatic Chronic Toxicity (Category 3)
Signal Word: Warning
Hazard Statements: Causes skin and eye irritation, suspected of causing allergic skin reactions, toxic to aquatic life with long-lasting effects
Pictograms: Exclamation mark, Environment
Precautionary Statements: Avoid breathing fumes/vapors, wear suitable protective gear, wash hands thoroughly after handling, keep out of waterways
Routes of Exposure: Inhalation, ingestion, skin and eye contact

Composition / Information on Ingredients

Chemical: 1,6-Hexanediol Diacrylate
Concentration: Typically >98% purity
Impurities: Trace monomers and inhibitors (added for stability)
Other Components: Stabilizers often include phenothiazine or hydroquinone methyl ether (at low ppm level to prevent premature polymerization)

First Aid Measures

Eye Contact: Rinse eyes slowly and gently under running water for at least 15 minutes, remove contact lenses, seek medical attention
Skin Contact: Wash exposed area with soap and water, remove contaminated clothing, seek medical advice if irritation persists
Inhalation: Move to fresh air, monitor for symptom development, provide oxygen if breathing is difficult, consult a physician
Ingestion: Do not induce vomiting, rinse mouth with water, seek medical attention immediately
General Advice: Provide SDS to medical responders as needed

Fire-Fighting Measures

Suitable Extinguishing Media: Dry chemical, carbon dioxide, foam, water spray (do not use direct water stream)
Special Hazards: Product may emit acrid smoke, carbon monoxide, carbon dioxide, and fragments of acrylate compounds when burned
Protective Equipment for Firefighters: Self-contained breathing apparatus, full protective gear
Fire & Explosion Precautions: Minimize dust and vapor exposure, cool closed containers near fire using water spray

Accidental Release Measures

Personal Precautions: Evacuate area, use personal protective equipment, avoid breathing vapors, ensure proper ventilation
Environmental Precautions: Prevent entry into drains, sewers, or waterways, contain spill with sand or inert absorbent material
Methods for Cleanup: Collect with non-sparking tools, scoop into compatible chemical waste containers, wash spill site with water and detergent
Additional Advice: Dispose of residues in accordance with local regulations, ventilate area thoroughly before re-entry

Handling and Storage

Safe Handling: Use only in well-ventilated spaces, wear recommended protective gear, avoid skin and eye contact, never eat, drink, or smoke when using
Storage Conditions: Store in tightly closed original containers, away from heat, light, ignition sources, and oxidizing agents
Special Storage Requirements: Product stability improves when kept cool and dry, inhibitors present in product—do not remove, inspect containers for leaks regularly

Exposure Controls and Personal Protection

Occupational Exposure Limits: No occupational exposure limit established, control vapors below nuisance levels
Engineering Controls: Ventilation systems to limit fume build-up, use of localized extraction if airborne concentrations are significant
Personal Protection: Chemical splash goggles, impermeable gloves (nitrile or butyl rubber), long-sleeved protective clothing, suitable respiratory protection if ventilation is insufficient
Hygiene Measures: Follow personal hygiene protocols, wash hands before breaks and after handling, remove contaminated clothing before entering non-work areas

Physical and Chemical Properties

Appearance: Clear, colorless to pale yellow liquid
Odor: Slight acrylate odor
pH: Not applicable (non-aqueous)
Boiling Point: Approximately 113 – 115°C (5 mmHg)
Melting Point: Below -50°C
Flash Point: 110°C (closed cup)
Vapor Pressure: Less than 0.1 mm Hg at 20°C
Solubility: Slightly soluble in water, miscible with most organic solvents
Relative Density: 1.01 – 1.02 (water = 1)
Viscosity: Low to moderate
Other Properties: Refractive index about 1.444

Stability and Reactivity

Chemical Stability: Normally stable with added inhibitor, heat or contamination may trigger polymerization
Conditions to Avoid: Overheating, exposure to light, contamination with peroxides, oxidizing or reducing agents
Incompatible Materials: Strong acids, bases, oxidizers, reducing agents, free radical initiators, amines
Hazardous Decomposition: Carbon oxides, acrylate monomers, aldehydes, smoke under fire conditions
Polymerization: May occur rapidly if exposed to heat, light, or contaminants; large-scale polymerization produces heat and fumes

Toxicological Information

Acute Toxicity: Low acute oral toxicity LD50 (rat) above 5000 mg/kg, dermal exposure may lead to moderate irritation
Skin Sensitization: Repeated or prolonged contact can lead to sensitization and allergic reaction
Eye Effects: Causes eye irritation, may produce redness or tearing
Inhalation Risks: Vapors or mists may irritate respiratory tract; symptoms include headache, nausea, coughing
Chronic Effects: May trigger dermatitis, no evidence for mutagenicity or carcinogenicity in standard models
Other Health Effects: Prolonged exposure to high concentrations may produce symptoms of central nervous system depression

Ecological Information

Ecotoxicity: Toxic to aquatic organisms, with potential for long-term effects in aquatic environments
Persistence and Degradability: Product hydrolyzes slowly; biodegradation occurs but at a moderate rate
Bioaccumulative Potential: Log Pow 2.4–2.8; risk of accumulation in aquatic species remains low to moderate
Mobility in Soil: Weak mobility due to slight water solubility; binds to soil and sediment
Aquatic Data: Fish LC50 (96h): approx. 10-100 mg/L (aquatic invertebrates similar range)

Disposal Considerations

Waste Generation: Do not discharge unused product to drains or waterways
Method of Disposal: Incinerate under controlled conditions, in accordance with local and national regulations
Contaminated Packaging: Rinse and offer for recycling or controlled disposal
Additional Information: Consult with licensed waste disposal contractors regarding options for hazardous waste

Transport Information

UN Number: 1993
UN Proper Shipping Name: Flammable Liquid, N.O.S. (1,6-Hexanediol Diacrylate)
Transport Hazard Class: 3 (Flammable liquid)
Packing Group: III
ADR/RID: Regulated as flammable, avoid excessive movement during shipment
IMDG/IATA: Subject to transport regulations for hazardous materials; consult latest guidelines

Regulatory Information

Safety, Health, and Environmental Regulations: Listed in EINECS (Europe), TSCA (USA), DSL (Canada), AICS (Australia), other major chemical inventories
GHS Label Requirements: Product labeling must match hazard statements and pictograms under local regulations
Restrictions: Regulated for use only by trained personnel, workplace safety training required
Other Regulatory Notes: Satisfies REACH pre-registration for European importers; subject to SARA Title III and other federal, state, or local requirements