Overview
Ethylhexyl acetate is an ester derived from 2-ethylhexanol and acetic acid, widely used as an industrial solvent. Its balanced evaporation rate and compatibility with resins make it a preferred choice in coatings and adhesives. The chemical's mild odor and low toxicity also allow its use in personal care products like nail polish and fragrances. First commercialized in the mid-20th century, ethylhexyl acetate gained prominence as a replacement for more volatile solvents. Today, it is produced globally, with major manufacturers in Europe, North America, and Asia. Its stability under heat and resistance to hydrolysis contribute to its broad applicability.
Physical and Chemical Properties
As a colorless liquid with a faint fruity odor, ethylhexyl acetate has a density of 0.87 g/cm³, making it lighter than water. Its high boiling point (199–202°C) ensures gradual evaporation, which is critical for achieving smooth film formation in paints. The compound is hydrophobic, with negligible solubility in water but excellent miscibility in alcohols, ketones, and hydrocarbons. Chemically, it exhibits typical ester properties, including susceptibility to hydrolysis under strong acidic or alkaline conditions. Its flash point is 82°C (closed cup), classifying it as a flammable liquid. Thermal stability up to 200°C allows its use in high-temperature applications.
Main Applications
In the coatings industry, ethylhexyl acetate serves as a coalescing agent for acrylic and vinyl resins, enhancing film flexibility and durability. It is a key component in automotive paints, wood varnishes, and industrial coatings due to its slow evaporation rate. Adhesive formulations leverage its solvency power to improve bonding strength and drying time. The personal care sector utilizes it as a carrier solvent for fragrances and a plasticizer in nail polish. Its low irritation profile meets cosmetic safety standards. Additionally, it finds niche uses in ink production, metalworking fluids, and as a laboratory reagent for organic synthesis.
Safety and Storage
While ethylhexyl acetate has low acute toxicity, prolonged exposure may cause skin dryness or eye irritation. Adequate ventilation and PPE (gloves, goggles) are recommended during handling. As a flammable liquid, it requires storage in UN-approved containers away from oxidizers and heat sources. Spills should be contained with inert absorbents (e.g., sand) and disposed of as hazardous waste. Regulatory compliance includes adherence to OSHA (US) and CLP (EU) standards. Shelf life exceeds two years when stored in sealed containers under 30°C, though moisture exposure should be minimized to prevent hydrolysis.
B2B Procurement Guide
Industrial buyers should prioritize suppliers with ISO 9001 certification and batch-specific COAs (Certificates of Analysis) confirming purity ≥98%. Common packaging includes 200L steel drums or IBC totes (1000L), with bulk shipments available via tanker trucks. Pricing fluctuates with crude oil derivatives' market trends. Key evaluation criteria: consistency in evaporation residue (<0.005%), acid value (<0.05 mg KOH/g), and water content (<0.1%). Regional regulations like REACH (EU) or TSCA (US) may require SDS documentation. Sample testing is advised for new suppliers to verify performance in target applications.
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