| Name | Formula | Mp (°C) | Bp (°C) | Density | nD | pKa1 |
|---|---|---|---|---|---|---|
| methanoic acid | CH2O2 | 8 | 101 | 1.219 | 1.370 | 3.75 |
| ethanoic acid | C2H4O2 | 16 | 117 | 1.051 | 1.372 | 4.76 |
| propanoic acid | C3H6O2 | -37 | 141 | 0.994 | 1.386 | 4.86 |
| butanoic acid | C4H8O2 | -6 | 163 | 0.960 | 1.397 | 4.83 |
| pentanoic acid | C5H10O2 | -59 | 185 | 0.930 | 1.408 | 4.82 |
| hexanoic acid | C6H12O2 | -3 | 205 | 0.920 | 1.416 | 4.85 |
| heptanoic acid | C7H14O2 | -8 | 223 | 0.918 | 1.422 | 4.89 |
| octanoic acid | C8H16O2 | 17 | 237 | 0.909 | 1.428 | 4.89 |
| nonanoic acid | C9H18O2 | 12 | 254 | 0.900 | 1.433 | 4.96 |
| decanoic acid | C10H20O2 | 32 | 269 | 0.890 | … | … |
| undecanoic acid | C11H22O2 | 29 | 284 | 0.890 | … | … |
| dodecanoic acid | C12H24O2 | 43 | 298 | 0.883 | … | 5.30 |
| tridecanoic acid | C13H26O2 | 41 | 299 | … | … | … |
| tetradecanoic acid | C14H28O2 | 58 | 318 | 0.862 | … | … |
| pentadecanoic acid | C15H30O2 | 53 | 339 | … | … | … |
| hexadecanoic acid | C16H32O2 | 63 | 354 | 0.852 | 1.427 | … |
| heptadecanoic acid | C17H34O2 | 61 | 364 | 0.853 | … | … |
| octadecanoic acid | C18H36O2 | 70 | 370 | 0.847 | 1.430 | … |
| nonadecanoic acid | C19H38O2 | 69 | 300 | … | … | … |