Limiting ionic conductivities (25 °C)
Molar conductivities λ° and diffusion coefficients of ions at infinite dilution in water. By Kohlrausch’s law an electrolyte’s Λ° is the sum of its ions’ λ°; every curve in the conductometry lesson is computed from this table.
| 1 | 349.65 | 349.65 | 9.311 | |
| 1 | 38.66 | 38.66 | 1.029 | |
| 1 | 50.08 | 50.08 | 1.334 | |
| 1 | 73.48 | 73.48 | 1.957 | |
| 1 | 73.50 | 73.50 | 1.957 | |
| 1 | 61.90 | 61.90 | 1.648 | |
| 2 | 53.00 | 106.00 | 0.706 | |
| 2 | 59.47 | 118.94 | 0.792 | |
| 2 | 63.60 | 127.20 | 0.847 | |
| 2 | 53.60 | 107.20 | 0.714 | |
| −1 | 198.00 | 198.00 | 5.273 | |
| −1 | 55.40 | 55.40 | 1.475 | |
| −1 | 76.31 | 76.31 | 2.032 | |
| −1 | 78.10 | 78.10 | 2.080 | |
| −1 | 76.80 | 76.80 | 2.045 | |
| −1 | 71.42 | 71.42 | 1.902 | |
| −1 | 67.30 | 67.30 | 1.792 | |
| −1 | 44.50 | 44.50 | 1.185 | |
| −2 | 69.30 | 138.60 | 0.923 | |
| −2 | 80.00 | 160.00 | 1.065 | |
| −1 | 40.90 | 40.90 | 1.089 | |
| −1 | 54.60 | 54.60 | 1.454 |
Multivalent ions are listed per equivalent (½Ca²⁺ is 59.47); the value per mole of ion is |z| times larger. H⁺ and OH⁻ are fast because protons are relayed along hydrogen bonds (the Grotthuss mechanism). Older compilations (H⁺ 349.8, Na⁺ 50.10, Cl⁻ 76.35) agree within 0.3 %.