| Name | Formula | Dielectric constant (εrel) | nD |
|---|---|---|---|
| pentanol | C5H12O | 13.90 | 1.4090 |
| pentyl acetate | C7H14O2 | 4.75 | 1.4020 |
| pentyl formate | C6H12O2 | 6.49 | 1.4000 |
| pentylamine | C5H13N | 4.50 | 1.4115 |
| perfluoro(methylcyclohexane) | C7F14 | 1.86 | 1.2820 |
| perfluoro-n-heptane | C7F16 | 1.76 | 1.2610 |
| perfluoro-n-octane | C8F18 | 1.81 | 1.2840 |
| perfluorotributylamine | C12F27N | 1.90 | 1.2910 |
| perhydrofluorene | C13H22 | 2.31 | 1.5020 |
| phenol | C6H6O | 10.00 | 1.5420 |
| phenyl acetate | C8H8O2 | 5.23 | 1.5030 |
| phenyl isothiocyanate | C7H5NS | 10.40 | 1.6492 |
| phenylacetaldehyde | C8H8O | 4.80 | 1.5255 |
| phenylhydrazine | C6H8N2 | 7.20 | 1.6093 |
| phenylisocyanate | C7H5NO | 8.80 | 1.5368 |
| phenylmethyl butanoate | C11H14O2 | 4.55 | 1.4930 |
| phenylphosphonic dichloride | C6H5Cl2OP | 26.00 | 1.5600 |
| phosphoric acid | H3O4P | 61.00 | 1.4310 |
| phosphorus oxychloride | Cl3OP | 13.50 | 1.4600 |
| phosphorus tribromide | Br3P | 3.90 | 1.6963 |
| phosphorus trichloride | Cl3P | 3.43 | 1.5147 |
| phthalide | C8H6O2 | 36.00 | 1.5356 |
| piperidine | C5H11N | 5.90 | 1.4525 |
| potassium bromide | BrK | 4.87 | 1.5590 |
| potassium chloride | ClK | 4.82 | 1.4900 |