Aromatic · C₇H₈
Methylbenzene — a common industrial solvent and octane booster. Solvent, gasoline blendstock, and feedstock for benzene and TDI; a staple of BTX aromatics units.
| Formula | C₇H₈ |
| CAS number | 108-88-3 |
| Synonyms | methylbenzene, toluol |
| Molar mass | 92.14 g/mol (Computed from the molecular formula and CODATA atomic weights) |
| Normal boiling point | 110.6 °C (NIST Chemistry WebBook (webbook.nist.gov)) |
| Liquid density | 867 kg/m³ (Reference liquid density near 20–25 °C (NIST WebBook)) |
Antoine equation (mmHg/°C): log₁₀(P) = 6.95464 − 1344.8 / (219.48 + T), valid 6–137 °C. Source: NIST Chemistry WebBook (webbook.nist.gov).
| °C | kPa | bar | mmHg | psia |
|---|---|---|---|---|
| 6.0 | 1.30 | 0.0130 | 9.8 | 0.189 |
| 32.2 | 5.45 | 0.0545 | 40.9 | 0.790 |
| 58.4 | 17.38 | 0.1738 | 130.4 | 2.521 |
| 84.6 | 45.40 | 0.4540 | 340.5 | 6.584 |
| 110.8 | 101.82 | 1.0182 | 763.7 | 14.768 |
| 137.0 | 202.82 | 2.0282 | 1521.2 | 29.416 |
Using its Antoine constants (NIST Chemistry WebBook (webbook.nist.gov)), the saturation pressure of toluene at 25 °C is about 3.79 kPa. Use the calculator above for any temperature within 6–137 °C.
Toluene boils at 110.6 °C at atmospheric pressure (NIST Chemistry WebBook (webbook.nist.gov)). At that temperature its vapor pressure equals one atmosphere (760 mmHg).
Toluene (C₇H₈, CAS 108-88-3) has a molar mass of 92.14 g/mol.