9SnS + 6KMnO4 → 9SnO2 + 2K2SO3 + 6MnS + K2S
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The reaction of tin(II) sulfide and potassium permanganate yields tin(IV) oxide, potassium sulfite, manganese(II) sulfide, and potassium sulfide (Other reactions are here). This reaction is an oxidation-reduction reaction and is classified as follows:
Table of contents
Reaction data
Chemical equation
- Reaction of tin(II) sulfide and potassium permanganate
General equation
- Reaction of reducing species and oxidizing species
- Reducing speciesReducing agent + Oxidizing speciesOxidizing agent ⟶ ProductOxidation product + ProductReduction product
Oxidation state of each atom
- Reaction of tin(II) sulfide and potassium permanganate
Reactants
| Chemical formula | Name | Coefficient | Type | Type in general equation |
|---|---|---|---|---|
| SnS | Tin(II) sulfide | 9 | Reducing | Reducing |
| KMnO4 | Potassium permanganate | 6 | Oxidizing | Oxidizing |
Products
| Chemical formula | Name | Coefficient | Type | Type in general equation |
|---|---|---|---|---|
| SnO2 | Tin(IV) oxide | 9 | Oxidized | – |
| K2SO3 | Potassium sulfite | 2 | Oxidized | – |
| MnS | Manganese(II) sulfide | 6 | Reduced | – |
| K2S | Potassium sulfide | 1 | – | – |
Thermodynamic changes
Changes in standard condition (1)
- Reaction of tin(II) sulfide and potassium permanganate
| Standard enthalpy of reaction ΔrH° kJ · mol−1 | Standard Gibbs energy of reaction ΔrG° kJ · mol−1 | Standard entropy of reaction ΔrS° J · K−1 · mol−1 | Standard heat capacity of reaction at constant pressure ΔrCp° J · K−1 · mol−1 | |
|---|---|---|---|---|
per 1 mol of Equation | −3220 | – | – | – |
per 1 mol of | −357.8 | – | – | – |
per 1 mol of | −536.7 | – | – | – |
per 1 mol of | −357.8 | – | – | – |
per 1 mol of | −1610 | – | – | – |
per 1 mol of | −536.7 | – | – | – |
per 1 mol of | −3220 | – | – | – |
Changes in standard condition (2)
- Reaction of tin(II) sulfide and potassium permanganate
| Standard enthalpy of reaction ΔrH° kJ · mol−1 | Standard Gibbs energy of reaction ΔrG° kJ · mol−1 | Standard entropy of reaction ΔrS° J · K−1 · mol−1 | Standard heat capacity of reaction at constant pressure ΔrCp° J · K−1 · mol−1 | |
|---|---|---|---|---|
per 1 mol of Equation | −3218 | – | – | – |
per 1 mol of | −357.6 | – | – | – |
per 1 mol of | −536.3 | – | – | – |
per 1 mol of | −357.6 | – | – | – |
per 1 mol of | −1609 | – | – | – |
per 1 mol of | −536.3 | – | – | – |
per 1 mol of | −3218 | – | – | – |
Changes in aqueous solution
- Reaction of tin(II) sulfide and potassium permanganate◆
ΔrG −3306.0 kJ/mol K 1.54 × 10579 pK −579.19
| Standard enthalpy of reaction ΔrH° kJ · mol−1 | Standard Gibbs energy of reaction ΔrG° kJ · mol−1 | Standard entropy of reaction ΔrS° J · K−1 · mol−1 | Standard heat capacity of reaction at constant pressure ΔrCp° J · K−1 · mol−1 | |
|---|---|---|---|---|
per 1 mol of Equation | −3600 | −3306.0 | −973 | – |
per 1 mol of | −400.0 | −367.33 | −108 | – |
per 1 mol of | −600.0 | −551.00 | −162 | – |
per 1 mol of | −400.0 | −367.33 | −108 | – |
per 1 mol of | −1800 | −1653.0 | −487 | – |
per 1 mol of | −600.0 | −551.00 | −162 | – |
per 1 mol of | −3600 | −3306.0 | −973 | – |
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 |
|---|---|---|---|---|
| SnS (cr) | -100[1] | -98.3[1] | 77.0[1] | 49.25[1] |
| SnS (g) | 119.2[1] | – | – | – |
| KMnO4 (cr) | -837.2[1] | -737.6[1] | 171.71[1] | 117.57[1] |
| KMnO4 (ai) | -793.8[1] | -730.5[1] | 293.7[1] | -60.2[1] |
* (cr):Crystalline solid, (g):Gas, (ai):Ionized aqueous solution
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 |
|---|---|---|---|---|
| SnO2 (cr) | -580.7[1] | -519.6[1] | 52.3[1] | 52.59[1] |
| K2SO3 (cr) | -1125.5[1] | – | – | – |
| K2SO3 (ai) | -1140.1[1] | -1053.1[1] | 176[1] | – |
| MnS (cr) green | -214.2[1] | -218.4[1] | 78.2[1] | 49.96[1] |
| MnS (am) precipitated, pink | -213.8[1] | – | – | – |
| K2S (cr) | -380.7[1] | -364.0[1] | 105[1] | – |
| K2S (ai) | -471.5[1] | -480.7[1] | 190.4[1] | – |
| K2S (cr) 2 hydrate | -975.3[1] | – | – | – |
| K2S (cr) 5 hydrate | -1871.5[1] | – | – | – |
* (cr):Crystalline solid, (ai):Ionized aqueous solution, (am):Amorphous solid
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°, -100. kJ · mol−1
- ^ ΔfG°, -98.3 kJ · mol−1
- ^ S°, 77.0 J · K−1 · mol−1
- ^ Cp°, 49.25 J · K−1 · mol−1
- ^ ΔfH°, 119.2 kJ · mol−1
- ^ ΔfH°, -837.2 kJ · mol−1
- ^ ΔfG°, -737.6 kJ · mol−1
- ^ S°, 171.71 J · K−1 · mol−1
- ^ Cp°, 117.57 J · K−1 · mol−1
- ^ ΔfH°, -793.8 kJ · mol−1
- ^ ΔfG°, -730.5 kJ · mol−1
- ^ S°, 293.7 J · K−1 · mol−1
- ^ Cp°, -60.2 J · K−1 · mol−1
- ^ ΔfH°, -580.7 kJ · mol−1
- ^ ΔfG°, -519.6 kJ · mol−1
- ^ S°, 52.3 J · K−1 · mol−1
- ^ Cp°, 52.59 J · K−1 · mol−1
- ^ ΔfH°, -1125.5 kJ · mol−1
- ^ ΔfH°, -1140.1 kJ · mol−1
- ^ ΔfG°, -1053.1 kJ · mol−1
- ^ S°, 176. J · K−1 · mol−1
- ^ ΔfH°, -214.2 kJ · mol−1
- ^ ΔfG°, -218.4 kJ · mol−1
- ^ S°, 78.2 J · K−1 · mol−1
- ^ Cp°, 49.96 J · K−1 · mol−1
- ^ ΔfH°, -213.8 kJ · mol−1
- ^ ΔfH°, -380.7 kJ · mol−1
- ^ ΔfG°, -364.0 kJ · mol−1
- ^ S°, 105. J · K−1 · mol−1
- ^ ΔfH°, -471.5 kJ · mol−1
- ^ ΔfG°, -480.7 kJ · mol−1
- ^ S°, 190.4 J · K−1 · mol−1
- ^ ΔfH°, -975.3 kJ · mol−1
- ^ ΔfH°, -1871.5 kJ · mol−1