2MnSiO3 → 2Mn4+ + 3O22− + 2Si4+ + 10e−
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- Oxidation of manganese(II) metasilicate
- 2MnSiO3Manganese(II) metasilicate2Mn4+Manganese(IV) ion + 3O22−Peroxide ion + 2Si4+Silicon ion + 10e−Electron⟶
Oxidation of manganese(II) metasilicate yields manganese(IV) ion, peroxide ion, silicon ion (Other reactions are here). This reaction is an oxidation-reduction reaction and is classified as follows:
Table of contents
Reaction data
Chemical equation
- Oxidation of manganese(II) metasilicate
- 2MnSiO3Manganese(II) metasilicate2Mn4+Manganese(IV) ion + 3O22−Peroxide ion + 2Si4+Silicon ion + 10e−Electron⟶
General equation
- Oxidation of oxidizable species
- ReactantReducing agent ⟶ ProductOxidation product + e−
Oxidation state of each atom
- Oxidation of manganese(II) metasilicate
Reactants
| Chemical formula | Name | Coefficient | Type | Type in general equation |
|---|---|---|---|---|
| MnSiO3 | Manganese(II) metasilicate | 2 | Reducing | – |
Products
| Chemical formula | Name | Coefficient | Type | Type in general equation |
|---|---|---|---|---|
| Mn4+ | Manganese(IV) ion | 2 | Oxidized | – |
| O22− | Peroxide ion | 3 | Oxidized | – |
| Si4+ | Silicon ion | 2 | – | – |
| e− | Electron | 10 | – | Electron |
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 |
|---|---|---|---|---|
| MnSiO3 (cr) | -1320.9[1] | -1240.5[1] | 89.1[1] | 86.44[1] |
| MnSiO3 (vit) | -1285.3[1] | – | – | – |
* (cr):Crystalline solid, (vit):Vitreous liquid
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 |
|---|---|---|---|---|
| Mn4+ | – | – | – | – |
| O22− | – | – | – | – |
| Si4+ (g) | 10429.75[1] | – | – | – |
| e− | – | – | – | – |
* (g):Gas
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)