| alkane | Nr carbon atoms | Melting Point °C | Boiling Point °C | Density g/L |
| 1 methane | 1 | -182.0 | -164.0 | 0.7 |
| 2 ethane | 2 | -183.0 | -89.0 | 1.3 |
| 3 propane | 3 | -190.0 | -42.0 | 1.9 |
| 4 butane | 4 | -138.0 | -1.0 | 2.5 |
| 5 pentane | 5 | -130.0 | 36.0 | 626.0 |
| 6 hexane | 6 | -95.0 | 69.0 | 659.0 |
| 7 heptane | 7 | -91.0 | 98.0 | 680.0 |
| 8 octane | 8 | -57.0 | 125.0 | 703.0 |
| 9 nonane | 9 | -54.0 | 150.0 | 718.0 |
| 10 decane | 10 | -30.0 | 174.0 | 730.0 |