2Li2S2O3 + 6e− → 4Li + 2S2− + S2O62−
Last updated:
- Reduction of lithium thiosulfate
Reduction of lithium thiosulfate yields , sulfide ion, and dithionate ion (Other reactions are here). This reaction is an oxidation-reduction reaction and is classified as follows:
Table of contents
Reaction data
Chemical equation
- Reduction of lithium thiosulfate
General equation
- Reduction of reducible species
- ReactantOxidizing agent + e− ⟶ ProductReduction product
Oxidation state of each atom
- Reduction of lithium thiosulfate
Reactants
| Chemical formula | Name | Coefficient | Type | Type in general equation |
|---|---|---|---|---|
| Li2S2O3 | Lithium thiosulfate | 2 | Oxidizing | – |
| e− | Electron | 6 | – | Electron |
Products
Thermodynamic changes
Thermodynamic data of reactants
| Chemical formula | Standard enthalpy of formation ΔfH° kJ · mol−1 | Standard Gibbs energy of formation ΔfG° kJ · mol−1 | Standard molar entropy S° J · K−1 · mol−1 | Standard molar heat capacity at constant pressure Cp° J · K−1 · mol−1 |
|---|---|---|---|---|
| Li2S2O3 | – | – | – | – |
| e− | – | – | – | – |
Thermodynamic data of products
| Chemical formula | Standard enthalpy of formation ΔfH° kJ · mol−1 | Standard Gibbs energy of formation ΔfG° kJ · mol−1 | Standard molar entropy S° J · K−1 · mol−1 | Standard molar heat capacity at constant pressure Cp° J · K−1 · mol−1 |
|---|---|---|---|---|
| (cr) | 0[1] | 0[1] | 29.12[1] | 24.77[1] |
| (g) | 159.37[1] | 126.66[1] | 138.77[1] | 20.786[1] |
| S2− (ao) | 33.1[1] | 85.8[1] | -14.6[1] | – |
| S2O62− (aq) | -1198.3[1] | – | – | – |
* (cr):Crystalline solid, (g):Gas, (ao):Un-ionized aqueous solution, (aq):Aqueous solution
References
List of references
- 1Janiel J. Reed (1989)The NBS Tables of Chemical Thermodynamic Properties: Selected Values for Inorganic and C1 and C2 Organic Substances in SI UnitsNational Institute of Standards and Technology (NIST)
- ^ ΔfH°, 0 kJ · mol−1
- ^ ΔfG°, 0 kJ · mol−1
- ^ S°, 29.12 J · K−1 · mol−1
- ^ Cp°, 24.77 J · K−1 · mol−1
- ^ ΔfH°, 159.37 kJ · mol−1
- ^ ΔfG°, 126.66 kJ · mol−1
- ^ S°, 138.77 J · K−1 · mol−1
- ^ Cp°, 20.786 J · K−1 · mol−1
- ^ ΔfH°, 33.1 kJ · mol−1
- ^ ΔfG°, 85.8 kJ · mol−1
- ^ S°, -14.6 J · K−1 · mol−1
- ^ ΔfH°, -1198.3 kJ · mol−1