Ethyl acetate (CAS 141-78-6) is a moderately polar solvent widely used in coatings, adhesives, pharmaceuticals, and other industries because of its excellent solvency and fast evaporation characteristics.
Is Ethyl Acetate Polar Or Nonpolar?
Ethyl acetate (Ethyl Ethanoate) is classified as a moderately polar organic solvent. Its dielectric constant is approximately 6.0 at 20°C, placing it between nonpolar hydrocarbons such as hexane (ε≈1.9) and highly polar solvents such as methanol (ε≈32.7). This intermediate polarity makes ethyl acetate suitable for dissolving a broad range of organic compounds used in industrial formulations.
Why Is Ethyl Acetate Considered Moderately Polar?
Ethyl acetate exhibits moderate polarity because its molecular structure contains both polar and nonpolar components. The ester group (–COO–) creates a permanent dipole with a dipole moment of approximately 1.78 D, while the ethyl group contributes nonpolar characteristics. Compared with hexane, ethyl acetate provides significantly stronger intermolecular interactions, yet remains less polar than alcohol-based solvents.
What Are The Key Physical Properties Of Ethyl Acetate?
Ethyl acetate is a colorless liquid with a fruity odor, a molecular formula of CH₃COOCH₂CH₃, and a molecular weight of 88.11 g/mol. It has a boiling point of approximately 77.1°C and is only partially soluble in water at about 8.3 g/100 mL at 20°C. Compared with butyl acetate, which boils at around 126°C, ethyl acetate evaporates significantly faster during industrial processing.
Polarity Comparison with Common Organic Solvents
From a practical formulation perspective, ethyl acetate falls in the middle of the polarity range.
| Solvent | Polarity Character | Practical Implications |
|---|---|---|
| Hexane | Nonpolar | Limited solvency, poor resin dissolution |
| Toluene | Low polarity | Good for aromatics, slower evaporation |
| Ethyl acetate | Moderate polarity | Broad compatibility, fast drying |
| Acetone | Moderate–high polarity | Very fast evaporation, higher volatility |
| Methanol | High polarity | Strong hydrogen bonding, water miscible |
Ethyl Acetate vs Nonpolar Solvents
Comparison with Hexane
- Hexane lacks polar functional groups
- Dissolves only nonpolar substances
- Limited use in resin-based systems
Ethyl acetate, by contrast, dissolves nitrocellulose, acrylics, and vinyl resins while still maintaining manageable evaporation behavior.
Ethyl Acetate vs Highly Polar Solvents
Comparison with Methanol
- Methanol is fully miscible with water
- Strong hydrogen bonding can disrupt formulations
- Higher moisture sensitivity
Ethyl acetate provides sufficient polarity for organic dissolution without introducing excessive water affinity, which is critical in coatings and ink systems.
What Are The Main Industrial Applications Of Ethyl Acetate?
EA Solvent is widely used in coatings, inks, adhesives, pharmaceuticals, and chemical manufacturing. Its combination of moderate polarity and rapid evaporation enables efficient resin dissolution and fast drying performance. Coatings and printing inks account for approximately 40% of global ethyl acetate consumption, making them the largest downstream application sectors. It is also commonly used in pharmaceutical extraction, fragrance production, cosmetics, and industrial cleaning operations.
Ethyl Acetate Supplier For Industrial Applications
As a professional ethyl acetate manufacturer and raw material supplier, Gneebio supplies Ethyl Acetate (CAS 141-78-6) for coatings, adhesives, pharmaceutical processing, and chemical manufacturing applications. With stable product quality, technical documentation support, and global export experience, Gneebio helps industrial buyers select the appropriate solvent grade for their production requirements.
Request a Quote
If you are looking for bulk ethyl acetate chemical, contact Tianjin Gnee Biotech Co., Ltd. for:
- Competitive factory pricing
- COA / MSDS / TDS support
- Global shipping (ISO tank / drums)
- Stable long-term supply
FAQ
What is the price of ethyl acetate?
Prices vary based on purity and order volume, typically lower in bulk shipments from China due to integrated production chains.
Where can I buy ethyl acetate in bulk?
Bulk ethyl acetate is commonly sourced from Chinese manufacturers offering ISO tanks and drum packaging for global industrial use.
Which is the best ethyl acetate supplier?
Reliable suppliers are those with COA, MSDS, ISO certification and stable export capacity, especially in China's chemical manufacturing hubs.
