A table of dielectric constants
(relative permittivity) and
refractive index.
The → RefractiveIndex.INFO Website
contains lots of detailed data and covers inorganics much better than this site.
| Name | Formula | Dielectric constant (εrel) | nD |
|---|---|---|---|
| tetradecafluorohexane | C6F14 | 1.57 | 1.2520 |
| perfluoro-n-heptane | C7F16 | 1.76 | 1.2610 |
| hydrogen cyanide | CHN | 114.90 | 1.2675 |
| perfluoro(methylcyclohexane) | C7F14 | 1.86 | 1.2820 |
| perfluoro-n-octane | C8F18 | 1.81 | 1.2840 |
| trifluoroacetic acid | C2HF3O2 | 8.55 | 1.2850 |
| 2,2,2-trifluoroethanol | C2H3F3O | 8.55 | 1.2910 |
| perfluorotributylamine | C12F27N | 1.90 | 1.2910 |
| methyl trifluoroacetate | C3H3F3O2 | 11.46 | 1.2910 |
| 1,2-dichloro-1,1,2,3,3,3-hexafluoropropane | C3Cl2F6 | 2.38 | 1.3030 |
| octadecafluoronaphthalene | C10F18 | 1.86 | 1.3145 |
| methanol | CH4O | 32.60 | 1.3284 |
| water | H2O | 80.10 | 1.3330 |
| 1,2-dichloro-1,2,3,3,4,4-hexafluorocyclobutane | C4Cl2F6 | 2.46 | 1.3330 |
| 2-fluoro-2-methylbutane | C5H11F | 5.89 | 1.3375 |
| propane | C3H8 | 1.60 | 1.3397 |
| methyl formate | C2H4O2 | 8.73 | 1.3440 |
| acetonitrile | C2H3N | 38.80 | 1.3441 |
| 2,2-dimethylpropane | C5H12 | 1.91 | 1.3513 |
| diethyl ether | C4H10O | 4.33 | 1.3524 |
| dimethoxymethane | C3H8O2 | 2.65 | 1.3530 |
| 2-methylbutane | C5H12 | 1.83 | 1.3540 |
| 1,1,2-trichloro-1,2,2-trifluoroethane | C2Cl3F3 | 2.41 | 1.3557 |
| butane | C4H10 | 1.77 | 1.3562 |
| 1-fluoropentane | C5H11F | 4.24 | 1.3573 |