Standard electrode potentials (reduction half-reactions)
Standard reduction potentials E° in volts of about 370 half-reactions — from Sr⁺/Sr at −4.1 V to fluorine and krypton difluoride above +2.8 V — with the element, oxidant, reductant and number of electrons transferred. One row per half-reaction.
Columns
Stable keys — use them in the API, SQL and code
| Key | Name | Type | Description |
|---|---|---|---|
| id | # | integer | Position in the source table. |
| element | Element | string | Key element of the couple, as listed in the source. |
| half_reaction | Half-reaction | string | Oxidant + electrons ⇌ reductant. |
| oxidant | Oxidant | string | — |
| reductant | Reductant | string | — |
| potential_v | E° | number · V | Standard reduction potential versus the standard hydrogen electrode, in volts. |
| electrons | Electrons | integer | Number of electrons transferred in the half-reaction. |
| estimated | Estimated | boolean | True when the source marks the value as an estimate. |
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