Ester · C₄H₈O₂
A fruity-smelling ester — a common coatings and extraction solvent. Solvent for coatings, adhesives, and pharmaceuticals; a decaffeination extraction solvent.
| Formula | C₄H₈O₂ |
| CAS number | 141-78-6 |
| Synonyms | ethyl ethanoate, EtOAc |
| Molar mass | 88.11 g/mol (Computed from the molecular formula and CODATA atomic weights) |
| Normal boiling point | 77.1 °C (NIST Chemistry WebBook (webbook.nist.gov)) |
| Liquid density | 902 kg/m³ (Reference liquid density near 20–25 °C (NIST WebBook)) |
Antoine equation (mmHg/°C): log₁₀(P) = 7.10179 − 1244.95 / (217.88 + T), valid 15–76 °C. Source: NIST Chemistry WebBook (webbook.nist.gov).
| °C | kPa | bar | mmHg | psia |
|---|---|---|---|---|
| 15.0 | 7.60 | 0.0760 | 57.0 | 1.102 |
| 27.2 | 14.03 | 0.1403 | 105.2 | 2.034 |
| 39.4 | 24.42 | 0.2442 | 183.2 | 3.542 |
| 51.6 | 40.45 | 0.4045 | 303.4 | 5.866 |
| 63.8 | 64.12 | 0.6412 | 480.9 | 9.299 |
| 76.0 | 97.82 | 0.9782 | 733.7 | 14.188 |
Using its Antoine constants (NIST Chemistry WebBook (webbook.nist.gov)), the saturation pressure of ethyl acetate at 25 °C is about 12.62 kPa. Use the calculator above for any temperature within 15–76 °C.
Ethyl acetate boils at 77.1 °C at atmospheric pressure (NIST Chemistry WebBook (webbook.nist.gov)). At that temperature its vapor pressure equals one atmosphere (760 mmHg).
Ethyl acetate (C₄H₈O₂, CAS 141-78-6) has a molar mass of 88.11 g/mol.