bei 25 °C
| Ion |  HH
in kJ * mol -1 |
Ion | HH
in kJ * mol -1 |
Ion | HH
in kJ * mol -1 |
| H3O+ | -1085 |
Ca2+ | -1580 |
Al3+ | -4609 |
| Li+ | -508 |
Sr2+ | -1433 |
OH - | -365 |
| Na+ | -399 |
Ba2+ | -1291 |
F - | -511 |
| K+ | -314 |
Fe2+ | -1961 |
Cl - | -376 |
| Rb+ | -288 |
Co2+ | -1996 |
Br - | -342 |
| Cs+ | -256 |
Ni2+ | -2105 |
I - | -299 |
| Ag+ | -468 |
Cu2+ | -2116 |
NO3 - | -256 |
| NH4+ | -293 |
Zn2+ | -2057 |
CN - | -349 |
| Be2+ | -2494 |
Hg2+ | -1820 |
||
| Mg2+ | -1910 |
Fe3+ | -4492 |