Product name: 1,2,3-Propanediol Triacetate
Synonyms: Glycerol triacetate, Triacetin
CAS number: 102-76-1
Recommended use: Solvent, plasticizer, food additive, pharmaceutical applications
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Classification: Not classified as hazardous under GHS criteria
Physical hazards: Negligible, not flammable at room temperature, forms combustible mixtures only at elevated temps
Health hazards: Inhalation of vapor can produce mild respiratory irritation
Potential effects: Contact with eyes or skin may result in transient irritation; ingestion may cause mild gastrointestinal discomfort
Environmental hazards: Large spills could affect aquatic environments by oxygen depletion
Chemical identity: 1,2,3-Propanediol triacetate
Formula: C9H14O6
Molecular weight: 218.20 g/mol
Purity: >99%
Impurities: Typical commercial grades contain minimal impurities, such as trace amounts of diacetate derivatives (less than 0.5%)
Eye contact: Rinse with clean water for at least fifteen minutes; consult medical attention for persistent irritation
Skin contact: Remove contaminated clothing, wash thoroughly with soap and water
Inhalation: Move affected person to fresh air; seek medical advice if symptoms like nausea or coughing persist
Ingestion: Rinse mouth with water, do not induce vomiting, call a physician if significant quantities have been swallowed or if adverse symptoms develop
Suitable extinguishing media: Use CO₂, foam, dry chemical powder, or water spray
Special hazards: Combustion releases carbon monoxide, carbon dioxide, possibly acetic acid vapors
Protective equipment: Firefighters should wear self-contained breathing apparatus and protective clothing
Other advice: Avoid inhaling combustion fumes; ensure ample ventilation in confined areas during response
Personal precautions: Wear gloves, goggles; limit skin and eye contact; ensure area is well ventilated
Environmental precautions: Prevent entry of large amounts into drains, surface water, or soil
Spill containment: Soak up with inert absorbent (sand, earth); collect waste in sealed containers for proper disposal
Clean-up: Wash residues with water; avoid splashing; dispose of wash water in accordance with regulations
Safe handling: Handle in areas with adequate ventilation; avoid unnecessary contact with skin or eyes; always wash hands after use
Storage conditions: Store in cool, dry, well-ventilated spaces, away from direct sunlight
Incompatible materials: Keep away from strong oxidizing agents and strong acids
Packaging: Use airtight, chemical-resistant containers; keep containers tightly closed when not in use
Engineering controls: Work with good general ventilation or local exhaust if airborne concentration could rise at elevated process temperatures
Exposure limits: No specific occupational exposure limit established for this substance
Personal protection: Safety glasses, nitrile rubber gloves, protective clothing recommended during handling
Respiratory protection: Respirator not required under normal circumstances, use in poorly ventilated areas may necessitate a mask
Hygiene measures: Wash hands and face thoroughly after handling, remove contaminated clothing
Appearance: Clear, colorless, odorless, oily liquid
Boiling point: 258°C (496°F)
Melting point: -78°C (-108°F)
Flash point: 140°C (284°F)
Vapor pressure: <0.1 mmHg at 20°C
Density: 1.159 g/cm³ at 20°C
Solubility: Soluble in water (about 6 g/100 mL at 25°C), miscible with alcohol, ether
pH: Not applicable (neutral ester)
Partition coefficient (log Kow): 0.21
Viscosity: 22 mPa·s at 25°C
Odor threshold: Not determined
Chemical stability: Stable under recommended storage conditions
Thermal decomposition: On prolonged heating above 250°C, forms acetic acid and acrolein vapors
Reactivity: Low chemical reactivity; does not corrode steel or glass
Incompatible materials: Avoid contact with strong oxidizers, strong acids; reacts slowly with alkalis
Hazardous decomposition products: Acetic acid, carbon monoxide, carbon dioxide produced at elevated temperature or if burned
Acute toxicity: Low acute oral and dermal toxicity; LD₅₀ (oral, rat): >8,000 mg/kg
Skin irritation: Not classified as a skin irritant, slight transient redness possible
Eye irritation: Not classified as an eye irritant, discomfort possible on direct exposure
Respiratory effects: Mild irritant at high vapor concentrations
Chronic effects: No evidence of carcinogenicity, genotoxicity, or reproductive effects in standard animal studies
Sensitization: Not known to be a skin sensitizer
Ecotoxicity: Not considered highly toxic to aquatic life; LC₅₀ (fish, 96h): >100 mg/L
Persistence and degradability: Biodegradable under standard conditions, rapid breakdown in the environment
Bioaccumulation: Unlikely; low log Kow means low potential for bioaccumulation
Mobility in soil: Mobile in water, may leach through soil
Other hazards: No known chronic effects at realistic concentrations; decomposes to acetic acid and water
Waste treatment: Dispose in accordance with local, regional, and national regulations as non-hazardous chemical waste
Container disposal: Rinse empty containers before recycling or disposal; do not reuse empty containers for food or drink
Contaminated packaging: Handle as chemical waste
Special precautions: Collect all dilution and wash water for disposal by permitted treatment or incineration facility
UN number: Not regulated for transportation
Proper shipping name: Not applicable
Transport hazard class: Not classified as hazardous for transport by air, sea, or land
Packing group: Not applicable
Environmental hazards: Not designated as a marine pollutant
Special transport precautions: Avoid shipment with strong oxidizers and acids, keep containers upright and sealed
Country specific: Not listed on the US TSCA 8(b) Inventory as a restricted chemical; registered under REACH in the EU for industrial and professional use
Labelling: No hazard pictograms or signal words required under GHS labeling
OSHA: Not considered hazardous under US Occupational Safety and Health Standard 29 CFR 1910.1200
Other regulations: Approved for use as a food additive (E1518) in many regions
Restrictions: None identified for industrial, professional, or consumer use under major chemical regulations
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