Product Name: 1,16-Hexadecanediol
Chemical Formula: C16H34O2
Synonyms: Hexadecylene glycol, 1,16-Hexadecanediyl diol
CAS Number: 629-74-7
Recommended Use: Laboratory reagent, cosmetic ingredient, polymer synthesis
Supplier Information: Chemical supply companies and laboratory distributors
Emergency Phone: Local poison control center or supplier emergency contact
Classification: Not classified as hazardous according to GHS
Signal Word: None
Hazard Statements: May cause mild skin or eye irritation in sensitive individuals
Pictograms: None required
Precautionary Statements: Avoid contact with eyes and prolonged skin exposure; use personal protection
Other Hazards: Slippery when spilled, can form combustible dust clouds
Chemical Name: 1,16-Hexadecanediol
CAS Number: 629-74-7
Concentration: 98-100%
Impurities: Trace water, possible homologous diols less than 2%
Inhalation: Move person to fresh air. Seek medical attention if symptoms develop.
Skin Contact: Remove contaminated clothing. Wash exposed skin thoroughly with soap and water.
Eye Contact: Rinse cautiously with water for at least 15 minutes. Remove contact lenses if present and easy to do.
Ingestion: Rinse mouth. Seek medical advice if large quantities are swallowed or if symptoms develop.
Most Important Symptoms: Mild irritation in eyes or on sensitive skin, redness, dryness
Suitable Extinguishing Media: Water spray, foam, dry chemical, carbon dioxide
Unsuitable Extinguishing Media: None known
Specific Hazards: Dust may form explosive mixture with air under certain conditions.
Hazardous Combustion Products: Carbon monoxide, carbon dioxide
Special Protective Equipment for Firefighters: Full protective clothing and self-contained breathing apparatus
Advice for Firefighters: Cool drums and containers with water spray to prevent pressure buildup and possible explosion.
Personal Precautions: Avoid breathing dust and contact with skin or eyes; wear personal protective equipment.
Environmental Precautions: Prevent large volumes from entering drains, sewers, or waterways.
Methods for Cleaning Up: Sweep up and collect spill without generating dust. Use inert absorbent material if necessary. Dispose of in accordance with regulations.
Reference to Other Sections: Refer to sections on exposure controls and disposal considerations for further guidance
Precautions for Safe Handling: Minimize creation and inhalation of dust. Wash hands after handling.
Conditions for Safe Storage: Keep container tightly closed in a cool, dry, and well-ventilated area away from sources of ignition or incompatible materials.
Incompatible Products: Strong oxidizing agents
Recommended Packaging Materials: Polyethylene or glass containers with tight fitting lids
Control Parameters: No established exposure limit values for 1,16-Hexadecanediol
Engineering Controls: Use with adequate ventilation or fume hood. Install dust collection and avoid open powder handling.
Personal Protection: Safety glasses or goggles, chemical-resistant gloves, laboratory coat
Respiratory Protection: Approved particulate respirator for dusty operations
Environmental Exposure Controls: Avoid spillage or release to waterways with bunding or other containment
Appearance: White to off-white waxy solid
Odor: Mild, fatty alcohol-like odor
Odor Threshold: Not available
pH: Not applicable (insoluble in water)
Melting Point/Freezing Point: Around 49 – 51°C
Boiling Point: Not precisely determined due to decomposition at high temperature
Flash Point: >120°C (closed cup)
Evaporation Rate: Not applicable
Flammability: Not highly flammable, but combustible as a dust
Vapor Pressure: Negligible
Relative Density: ~0.91 (at 20°C)
Solubility: Poorly soluble in water, miscible with ethanol, ether, and many organic solvents
Partition Coefficient (n-octanol/water): Data not available
Auto-Ignition Temperature: >260°C
Decomposition Temperature: Data not available
Viscosity: Not applicable in solid form
Chemical Stability: Stable under recommended storage conditions
Possibility of Hazardous Reactions: None expected under normal use
Conditions to Avoid: Excessive heat, open flames, generation of dust
Incompatible Materials: Strong oxidizers, strong acids
Hazardous Decomposition Products: Carbon monoxide, carbon dioxide in case of burning or thermal decomposition
Acute Toxicity: No data indicating oral, dermal, or inhalation toxicity at typical exposure levels for 1,16-Hexadecanediol
Skin Corrosion/Irritation: Mild irritant potential, especially to sensitive skin
Serious Eye Damage/Irritation: May cause mild irritation with redness or discomfort
Respiratory or Skin Sensitization: Not a known sensitizer
Germ Cell Mutagenicity: Not classified
Carcinogenicity: No evidence found, not listed by IARC, NTP, ACGIH or OSHA
Reproductive Toxicity: No evidence
Specific Target Organ Toxicity (single or repeated exposure): Not classified
Aspiration Hazard: Not an aspiration risk based on physical form
Ecotoxicity: No data available. Moderately biodegradable substance, not expected to pose significant long-term hazard.
Persistence and Degradability: Readily biodegradable in standard tests with aerobic microorganisms
Bioaccumulation Potential: Low potential expected due to molecular structure
Mobility in Soil: Limited by low solubility in water, likely to adsorb onto soil particles
Other Adverse Effects: No further known ecological effects
Waste Treatment Methods: Collect and deliver to authorized chemical waste facility
Product Disposal: Dispose of according to local, regional, and national regulations for non-hazardous laboratory chemicals
Packaging Disposal: Container can be recycled or disposed of after thorough cleaning
Additional Information: Do not dispose in household waste or pour into drains
UN Number: Not regulated for transport
UN Proper Shipping Name: Not classified
Transport Hazard Class: Not assigned
Packing Group: Not assigned
Environmental Hazards: Not a marine pollutant
Special Precautions for User: No special handling required for transport
SARA 313: Not listed
TSCA: 1,16-Hexadecanediol appears on the United States TSCA Inventory
REACH Registration: Substance may be REACH registered for uses over 1 tonne if manufactured or imported in the EU
OSHA: Not classified as a hazardous chemical
Canadian DSL/NDSL: Listed
Other Local Regulations: Follow all relevant regulations and workplace safety laws in your jurisdiction regarding handling and use
