https://doi.org/10.1351/goldbook.E02192
Entity corresponding to the transfer of a H+ ion in a neutralization reaction, of an electron in a redox reaction, or to a magnitude of @C00993@ equal to 1 in ions. Examples: \(\frac{1}{2}\) H2SO4, \(\frac{1}{5}\) KMnO4, \(\frac{1}{3}\) Fe3+.
Source:
Physical Chemistry Division, unpublished [Terms]