Ethyl acetate (CAS No. 141-78-6) is widely used as an industrial solvent in coatings, inks, adhesives, pharmaceuticals, and chemical processing.
Understanding the polarity of ethyl acetate is essential for predicting solubility, formulation stability, drying behavior, and material compatibility.
As a professional ethyl acetate manufacturer and raw material supplier, Gneebio provides this practical guide to support informed solvent selection.
What Is Ethyl Acetate?
Ethyl acetate, also known as ethyl ethanoate, is an ester formed by the reaction of ethanol and acetic acid.
It is a colorless, transparent liquid with a mild, fruity odor and excellent solvency for a wide range of organic compounds.
Industrial applications include:
- Paints and surface coatings
- Printing inks
- Adhesives and sealants
- Pharmaceutical synthesis
- Agrochemical formulations
- Electronic and cleaning solvents
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Is Ethyl Acetate Polar or Nonpolar?
Ethyl acetate is classified as a moderately polar solvent.
It is:
More polar than nonpolar hydrocarbons such as hexane or toluene
Less polar than highly polar solvents such as methanol, ethanol, or water
This intermediate polarity comes from its ester functional group, combined with a short hydrocarbon chain, giving ethyl acetate both polar and nonpolar characteristics.
chemical properties of Ethyl Acetate
| Item | Value |
|---|---|
| Chemical Name | Ethyl Acetate |
| Synonyms | Ethyl Ethanoate |
| CAS Number | 141-78-6 |
| Molecular Formula | C₄H₈O₂ |
| Molecular Weight | 88.11 g/mol |
| Chemical Class | Ester |
| Appearance | Colorless liquid |
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How Ethyl Acetate's Molecular Structure Affects Polarity?
Ethyl acetate has the following structural features:
- A carbonyl group (C=O) that introduces polarity
- An ester linkage (–COO–) that enables dipole interactions
- An ethyl group (–CH₂CH₃) that contributes nonpolar character
This balance explains why ethyl acetate can dissolve many organic compounds while remaining only slightly soluble in water.
Practical Comparison with Common Solvents
Ethyl Acetate vs Hexane
Hexane: Nonpolar, limited solvency
Ethyl acetate: Moderately polar, broader compatibility
Ethyl acetate is preferred when hydrocarbons cannot dissolve resins or intermediates effectively.
Ethyl Acetate vs Methanol
Methanol: Highly polar, strong hydrogen bonding
Ethyl acetate: Moderate polarity, limited water interaction
Ethyl acetate is often selected when excessive polarity could cause moisture sensitivity or formulation instability.
Why Choose Gneebio as Your Ethyl Acetate Supplier?
- Direct manufacturer with stable production capacity
- Consistent quality and strict QC standards
- Competitive bulk pricing
- Fast response for MSDS & COA requests
- Rich export experience and reliable logistics support
- Our goal is to build long-term partnerships by supplying reliable ethyl acetate at competitive prices.
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