Chemical Name: Propylene Glycol Diethylhexanoate
Synonyms: Diethylhexanoic Acid Propylene Glycol Ester
CAS Number: 68583-51-7
Molecular Formula: C17H32O4
Recommended Use: Commonly seen in flavor and fragrance formulations, plasticizer manufacturing, and industrial chemical production.
Supplier Details: Company contact information, emergency telephone numbers, and product code provided on request or in purchase documentation.
GHS Classification: Eye Irritant Category 2, Skin Irritant Category 3, Acute Oral Toxicity Category 5
Signal Word: Warning
Hazard Statements: May irritate skin and eyes. Harmful if swallowed in large amounts. May cause mild respiratory irritation.
Pictograms: Exclamation mark (for irritant hazards).
Precautionary Statements: Avoid contact with eyes, prolonged or repeated skin exposure. Wear gloves and eye protection during use. Use with adequate ventilation. Do not ingest.
Substance: Single-ingredient product
Chemical Name: Propylene Glycol Diethylhexanoate
Purity (Typical): ≥97%
Impurities: Trace amounts of diisooctanoic acids, residual starting alcohols & acids below 1%.
Additives: No known stabilizers or preservatives.
Inhalation: Move person to fresh air, monitor breathing, seek medical attention if symptoms persist or worsen.
Skin Contact: Immediately wash skin with soap and water for at least 15 minutes, remove contaminated clothing, seek medical attention if irritation develops.
Eye Contact: Rinse immediately with plenty of clean water for at least 15 minutes, keep eyelids open, remove contact lenses if present, seek medical advice for persistent redness or pain.
Ingestion: Rinse mouth thoroughly, do not induce vomiting unless directed by medical professional, seek immediate medical help if large amounts are ingested; report symptoms such as dizziness, nausea, or gastrointestinal upset.
Suitable Extinguishing Media: Water spray, dry chemical powder, foam, carbon dioxide extinguishers.
Unsuitable Extinguishing Media: Direct high-pressure water jets may cause product to spatter.
Hazards: Combustible at high temperatures, may release carbon monoxide and carbon dioxide under fire conditions, fumes may cause eye and respiratory irritation.
Protective Equipment: Firefighters should wear self-contained breathing apparatus and full protective gear.
Firefighting Advice: Cool nearby tanks and containers with water spray, stay upwind to avoid inhaling vapors, use caution with runoff to prevent contamination.
Personal Precautions: Avoid breathing vapors, ensure adequate ventilation, use personal protective equipment (gloves, eyewear).
Environmental Precautions: Prevent product from entering drains, watercourses, or soil. Contain spills immediately, notify authorities if large releases seep into water systems.
Methods for Clean-Up: Absorb with earth, sand, or inert material. Shovel into appropriate chemical waste containers for disposal. Thoroughly wash floors and surfaces after containment. Dispose in accordance with local, regional, and national regulations.
Additional Measures: Isolate area, restrict access until clean-up complete.
Handling: Minimize contact with skin and eyes. Use only in a well-ventilated area. Do not eat, drink, or smoke when using the product. Wash hands thoroughly after handling. Keep away from heat sources, sparks, flames, and incompatibles.
Storage: Store in tightly sealed containers made of compatible materials (such as HDPE or glass). Keep container in a cool, dry, and well-ventilated place, away from direct sunlight. Prevent contamination by strong acids, alkalis, or oxidizers.
Special Considerations: Secondary containment advised in storage areas to prevent spills and leaks. Label containers clearly with hazard information.
Exposure Limits: No established occupational exposure limits for Propylene Glycol Diethylhexanoate. Follow general chemical hygiene practices.
Engineering Controls: Use local exhaust ventilation or general mechanical ventilation to keep airborne concentrations low.
Personal Protective Equipment: Wear protective gloves (nitrile, neoprene), chemical splash goggles or face shield, protective clothing in case of repeated or prolonged exposure. Use approved respiratory protection if ventilation insufficient or aerosol formation likely.
Workplace Hygiene: Do not eat, drink, or smoke in areas where product is handled. Wash thoroughly after handling.
Appearance: Clear, colorless to pale yellow liquid.
Odor: Mild, fatty or ester-like odor.
Odor Threshold: Not established.
pH: Not applicable (non-aqueous).
Melting Point/Freezing Point: Not determined.
Boiling Point: 319 °C (estimated).
Flash Point: 168 °C (334 °F) (closed cup).
Evaporation Rate: Slow/low volatility.
Flammability: Combustible above flash point.
Vapor Pressure: <0.01 mm Hg @ 20°C.
Vapor Density: (Air = 1) >1.
Relative Density: 0.94–0.96 g/cm³ @ 20°C.
Solubility: Slightly soluble in water, soluble in alcohols and organic solvents.
Partition Coefficient (Log Kow): Estimated >4.
Auto-ignition Temperature: Not established.
Decomposition Temperature: Not established.
Viscosity: 35–55 mPa·s @ 20°C.
Chemical Stability: Stable under recommended storage and handling conditions.
Reactivity: No dangerous reaction with water or air.
Incompatible Materials: Strong oxidizers, acids, and alkalis can react vigorously.
Conditions to Avoid: Avoid strong heat, flames, and direct sunlight. Avoid pressure build-up in containers.
Hazardous Decomposition Products: Under fire or high temperatures, expect carbon monoxide, carbon dioxide, and possibly irritating organic fumes.
Polymerization: Will not occur under normal use.
Acute Toxicity: Oral LD50 (rat) estimated >2,000 mg/kg. Low acute toxicity based on structure and analogs.
Skin Contact: Low concern for acute toxicity; prolonged contact might cause mild irritation or dryness.
Eye Contact: May produce mild to moderate irritation.
Inhalation: Vapors or aerosols may aggravate respiratory conditions, cause coughing or throat irritation.
Chronic Exposure: No data indicating carcinogenic, mutagenic, or reproductive hazards; based on analogs, chronic effects expected to be minimal under standard handling.
Sensitization: Not recognized as a skin sensitizer.
Target Organs: No specific target organ toxicity identified; monitor for general systemic effects in case of severe overexposure.
Ecotoxicity: Limited data; based on structural analogs, expected to be low to moderately toxic to aquatic organisms (fish, daphnia, algae).
Persistence and Degradability: Not rapidly biodegradable in water, but slow abiotic degradation probable over time.
Bioaccumulation Potential: Potential for bioaccumulation exists due to high log Kow, but low water solubility reduces immediate risk.
Mobility in Soil: Low mobility; tends to bind to organic matter in soil.
Other Adverse Effects: Avoid uncontrolled releases to the environment; large spills may create slicks, negative impact on aquatic habitats.
Waste Treatment: Treat as a hazardous waste according to local, regional, and national regulations.
Methods of Disposal: Incineration in an approved facility preferred where permitted. Do not allow product to reach sewer systems or water bodies.
Container Disposal: Empty containers should be rinsed with suitable solvent, rendered unusable, and offered for recycling or disposal through licensed waste handler.
Precautions: Never discharge into environment, inform appropriate agencies in case of substantial release.
UN Number: Not regulated for transport under most international rules.
Proper Shipping Name: Not a hazardous material as defined by DOT, IMDG, IATA, ADR.
Transport Hazard Class: Not classified.
Packing Group: Not classified.
Environmental Hazards: Not considered marine pollutant but prevent uncontrolled discharge.
Additional Transport Precautions: Secure tightly closed containers, ensure upright transport, avoid heat and rough handling. Emergency response guide and MSDS should accompany bulk shipments.
US TSCA: Listed.
EU REACH: Registered/Pre-registered.
Canadian DSL/NDSL: Review required for inclusion.
OSHA Hazard Status: Eye and skin irritant.
SARA Section 313: Does not contain reportable toxic chemicals.
California Proposition 65: Not listed.
Other International Regulations: Subject to occupational exposure, transport, and registration standards as appropriate in local jurisdiction.
Labeling: Globally Harmonized System for Classification and Labeling (GHS) applies; proper workplace and consumer labeling crucial.
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