2-Ethylhexanol (2-EH)

   CAS No.: 104-76-7
   Synonyms / IUPAC Name: 2-Ethylhexan-1-ol; Ethylhexyl Alcohol; Iso-octyl Alcohol
   Molecular Formula: C₈H₁₈O
   Molecular Weight: ≈ 130.23 g/mol
   Appearance: Clear to slightly yellow liquid
   Odor: Mildly aromatic, slightly floral or fatty alcohol-type scent

Physicochemical Properties (Typical)

• Melting Point: < −76 °C
• Boiling Point: Approx. 182–186 °C
• Density (20–25 °C): ~0.83 g/cm³
• Flash Point: ~81 °C (closed cup)
• Solubility: Poorly soluble in water (~0.11 g/100 mL at 20 °C)
• Vapor Pressure (20 °C): ~0.3 hPa
• Vapor Density (air = 1): ~4.5
• Auto-ignition Temperature: ~270–290 °C

Purity & Quality Standards

• Typical Purity: ≥ 99.0% for high-grade material
• Appearance: Clear to light yellow, free from visible particulates or haze
• Analytical Methods: Gas chromatography for purity; moisture content and volatile impurities monitored
• Storage & Handling: Maintain sealed containers; protect from heat and direct sunlight
• Documentation: Certificate of Analysis (COA) and Safety Data Sheet (SDS) provided per batch

Applications / Uses

• Intermediate in the manufacture of plasticizers (especially diesters for flexible PVC)
• Solvent or component in coatings, adhesives, sealants, and printing inks
• Used in formulation of lubricants, industrial fluids, and specialty chemical synthesis
• Minor use as flavour or fragrance component due to its mild aroma

Safety & Handling

• Hazards: Combustible liquid; vapour may form explosive mixtures with air above certain temperatures (>73 °C)
• Health Effects:
• Skin or eye contact may cause irritation
• Inhalation of vapour-rich air may cause respiratory irritation
• Precautions:
• Use only in well-ventilated areas
• Avoid ignition sources and static discharge
• Wear protective gloves, safety glasses, and appropriate face protection
• Reactivity: Avoid contact with strong oxidising agents and strong bases; minimise mist generation
• First Aid:
• Inhalation: Move to fresh air; keep at rest; seek medical attention if symptoms persist
• Skin Contact: Wash thoroughly with soap and water; remove contaminated clothing
• Eye Contact: Rinse with clean water for several minutes; seek medical advice
• Ingestion: Do not induce vomiting; seek immediate medical attention

Packaging & Storage

• Packaging: Supplied in tightly sealed, solvent-compatible containers (e.g., drums, steel, or lined plastic)
• Storage Conditions: Store in a cool (<30 °C), dry, ventilated area away from sunlight, ignition sources, and strong oxidisers
• Container Closure: Keep containers closed when not in use to prevent vapour release and contamination
• Shelf Life: Typically 12–24 months when stored under recommended conditions