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Substance Name: Tripropylene Glycol
Chemical Formula: C9H20O4
Common Uses: Solvent for inks and paints, ingredient in fragrances and cosmetics, chemical intermediate in industry, component in hydraulic fluids.
Appearance: Clear, viscous liquid with mild odor.
Classification: Generally considered low hazard under typical handling conditions.
Acute Effects: Inhalation of vapors can cause mild irritation to respiratory tract. Skin contact rarely leads to irritation, but individuals with sensitive skin might experience dryness.
Chronic Exposure: Prolonged or repeated contact may dry or crack the skin from defatting effects.
Main Routes of Exposure: Skin and eye contact.
Environmental Risk: Spills can enter waterways and pose a mild risk to aquatic organisms if not controlled.
Main Ingredient: Tripropylene Glycol (typically 95% or higher by weight).
Impurities: Trace amounts of monopropylene glycol, dipropylene glycol, and other propylene glycol oligomers may be present.
CAS Number: 24800-44-0
Inhalation: Remove to fresh air. Mild irritation usually resolves quickly.
Skin Contact: Wash thoroughly with soap and water. Moisturizer helps relieve mild irritation.
Eye Contact: Rinse immediately with plenty of water for at least 15 minutes. Seek medical advice if irritation persists.
Ingestion: Rinse mouth and drink water to dilute. Medical attention is recommended for large ingestions.
Flammability: Not easily ignited, but can burn when heated above roughly 220°C.
Hazardous Combustion Products: Burning may release carbon monoxide, carbon dioxide, and other unknown organic compounds.
Suitable Extinguishing Media: Water fog, dry chemical, foam, CO2 extinguishers. Avoid direct water stream on hot liquid.
Protective Equipment: Firefighters should wear self-contained breathing apparatus and full protective gear.
Spill Containment: Absorb with inert material like sand or earth. Prevent further leakage or spillage if safe.
Environmental Precautions: Block entry to sewers and waterways to avoid contamination.
Clean-Up Methods: Gather absorbed material and place in a suitable waste container for disposal. Wash residue from area with water to remove traces.
Handling: Avoid breathing vapors or direct contact with skin and eyes. Wear appropriate gloves and eye protection. Work in well-ventilated areas.
Storage Conditions: Store in tightly sealed containers away from strong oxidizers. Maintain in a dry, cool, and well-ventilated place. Keep containers upright to prevent leaks.
Incompatible Materials: Strong acids, bases, and oxidizing agents.
Engineering Controls: Local exhaust ventilation reduces airborne concentrations in work areas.
Personal Protective Equipment: Use protective gloves (nitrile, rubber), chemical splash goggles, and long-sleeved clothing if splashing is likely.
Hygiene Measures: Wash hands before eating or using the restroom after handling. Change out of contaminated clothing promptly.
Appearance: Colorless, clear, viscous liquid.
Odor: Slightly sweet.
Boiling Point: About 280–285°C.
Flash Point: Above 138°C (closed cup).
Solubility: Miscible with water and many organic solvents.
Density: 1.0–1.03 g/cm³.
Vapor Pressure: Low at room temperature.
Chemical Stability: Stable under recommended storage and handling conditions.
Incompatible Materials: Strong oxidizers, strong acids, strong bases.
Hazardous Decomposition: Thermal decomposition can produce toxic fumes, including carbon monoxide and unidentified organic compounds.
Reactivity: Non-reactive with most common construction and polymer materials used in containers and piping.
Acute Toxicity: Low toxicity by oral, dermal, and inhalation routes.
Skin Irritation: Minimal, possible dryness or irritation after repeated exposures.
Eye Irritation: Mild, transient discomfort can occur.
Chronic Effects: No evidence linking tripropylene glycol to cancer, reproductive toxicity, or genetic damage in available studies.
Ingestion: Large doses may cause upset stomach, diarrhea, and central nervous system depression in rare cases.
Aquatic Toxicity: Not acutely toxic to fish or invertebrates at likely concentrations.
Persistence and Degradability: Readily biodegradable in the environment according to laboratory tests.
Bioaccumulation: Unlikely due to low log Kow value.
Environmental Impact: Large spills can create oxygen demand in water, reducing dissolved oxygen levels if not remediated quickly.
Waste Disposal: Consult local and national regulations. Generally suitable for incineration in approved facilities.
Small Quantities: Can be mixed with absorbents and landfilled per local rules.
Avoid: Discharge in sewers, storm drains, or natural water bodies.
Shipping Classification: Not regulated as a hazardous material for ground, air, or sea transport in most countries.
UN Number: Not assigned.
Packaging: Use clean, sealed containers. Secure to avoid shifting and leaks in transport.
Occupational Exposure Limit: Not established in most regions, but general dust/mist guidance applies.
Inventory Listings: Included on most major chemical inventories such as TSCA and EINECS.
Special Restrictions: Follow workplace safety laws for chemical storage and PPE compliance.
Labelling: Not classified as hazardous under typical regulatory frameworks, but always include chemical identity and basic safety guidance on container labels.
