Alcohol · C₃H₈O
Isopropyl alcohol — a fast-drying solvent and cleaning agent. Cleaning and degreasing, a common laboratory and electronics solvent, and a dehydration azeotrope entrainer.
| Formula | C₃H₈O |
| CAS number | 67-63-0 |
| Synonyms | 2-propanol, isopropyl alcohol, IPA |
| Molar mass | 60.1 g/mol (Computed from the molecular formula and CODATA atomic weights) |
| Normal boiling point | 82.6 °C (NIST Chemistry WebBook (webbook.nist.gov)) |
| Liquid density | 786 kg/m³ (Reference liquid density near 20–25 °C (NIST WebBook)) |
Antoine equation (mmHg/°C): log₁₀(P) = 8.00308 − 1505.52 / (211.6 + T), valid 0–101 °C. Source: NIST Chemistry WebBook (webbook.nist.gov).
| °C | kPa | bar | mmHg | psia |
|---|---|---|---|---|
| 0.0 | 1.03 | 0.0103 | 7.7 | 0.149 |
| 20.2 | 4.30 | 0.0430 | 32.2 | 0.623 |
| 40.4 | 14.25 | 0.1425 | 106.9 | 2.066 |
| 60.6 | 39.54 | 0.3954 | 296.6 | 5.735 |
| 80.8 | 95.31 | 0.9531 | 714.9 | 13.824 |
| 101.0 | 205.05 | 2.0505 | 1538.0 | 29.740 |
Using its Antoine constants (NIST Chemistry WebBook (webbook.nist.gov)), the saturation pressure of isopropanol at 25 °C is about 5.82 kPa. Use the calculator above for any temperature within 0–101 °C.
Isopropanol boils at 82.6 °C at atmospheric pressure (NIST Chemistry WebBook (webbook.nist.gov)). At that temperature its vapor pressure equals one atmosphere (760 mmHg).
Isopropanol (C₃H₈O, CAS 67-63-0) has a molar mass of 60.1 g/mol.