N-Butyl Acetate and Ethyl Acetate are both widely used ester solvents, but they differ significantly in evaporation rate, solvency strength, and industrial applications. Ethyl acetate is faster-drying and more suitable for high-speed coating and printing systems, while n-butyl acetate provides slower evaporation and better flow leveling for high-quality surface finishes.
Chemical Formula and Molecular Structure
Chemical Formula and Molecular Structure of Ethyl Acetate
- Chemical formula: C₄H₈O₂
- Structural formula: CH₃COOCH₂CH₃
Chemical Formula and Molecular Structure of N-Butyl Acetate
- Chemical formula: C₆H₁₂O₂
- Structural formula: CH₃COO(CH₂)₃CH₃
Both compounds belong to the ester family and are widely used as industrial solvent chemicals.
Difference Between N-Butyl Acetate and Ethyl Acetate
Similarities
Both ethyl acetate solvent and n-butyl acetate solvent share several important characteristics:
- Both are ester compounds
- Both are highly volatile organic solvents
- Both are flammable liquids
- Both are widely used in coatings, inks, and adhesives industries
Differences in Chemical Structure and Performance
Despite similarities, their molecular composition leads to significantly different properties:
- Ethyl acetate (C₄H₈O₂): contains fewer carbon atoms and has a lighter molecular weight
- N-butyl acetate (C₆H₁₂O₂): contains more carbon atoms and a heavier molecular structure
Key structural difference:
- Ethyl acetate ester group: CH₃COO– (ethyl group)
- N-butyl acetate ester group: CH₃COO–(C₄H₉) (butyl group)
Due to this difference:
Ethyl acetate evaporates faster
N-butyl acetate evaporates more slowly and provides better leveling performance
This is a critical factor in coating formulation solvent selection.
N-Butyl Acetate vs Ethyl Acetate Property Comparison Table
| Property | N-Butyl Acetate | Ethyl Acetate | Key Difference |
|---|---|---|---|
| Boiling Point | 126.1 °C | 77.1 °C | N-Butyl Acetate boils 49.0°C higher |
| Flash Point | 36 °C | -4 °C | Ethyl Acetate is more flammable |
| Density | 0.882 g/cm³ | 0.900 g/cm³ | Ethyl Acetate is denser |
| Water Solubility | 0.7 g/100 mL at 20°C | 8.3 g/100 mL at 20°C | Ethyl Acetate is more soluble in water |
| pH | N/A | N/A | Data not available for direct comparison |
| Molecular Weight | 116.16 g/mol | 88.11 g/mol | N-Butyl Acetate is heavier molecule |
| Melting Point | -77.9 °C | -83.6 °C | N-Butyl Acetate has higher melting point |
| Vapor Pressure | 10 mmHg at 20°C | 97 mmHg at 20°C | Ethyl Acetate is more volatile |
| Auto-Ignition Temp | 405 °C | 427 °C | N-Butyl Acetate ignites at lower temperature |
| Vapor Density | 4.0 (Air = 1) | 3.04 (Air = 1) | N-Butyl Acetate vapors are heavier |
| Appearance | Clear, colorless liquid | Clear, colorless liquid | Similar appearance |
| Odor | Sweet, fruity | Sweet, fruity | Similar odor |
Conclusion: Ethyl Acetate vs N-Butyl Acetate in Industrial Use
Ethyl acetate and n-butyl acetate are not the same compound. Although both are ester-based solvents, their molecular structures differ significantly, resulting in different properties and industrial applications.
Ethyl acetate (CAS 141-78-6) is commonly used as a fast-evaporating solvent in:
- Industrial coatings
- Adhesives
- Fragrances and flavor industries
- Laboratory and HPLC-grade solvent applications
Click here for a detailed overview of ethyl acetate applications.
N-butyl acetate (CAS 123-86-4) is more widely used in:
- Printing inks
- Automotive coatings
- Industrial paints and resins
- Plastic and chemical processing industries
Ethyl Acetate and N-Butyl Acetate Manufacturer – Tianjin Gnee Biotech Co., Ltd.
Tianjin Gnee Biotech Co., Ltd. supplies high-quality Ethyl Acetate and N-Butyl Acetate with stable specifications and reliable industrial-grade performance.
Contact us for:
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