3PtCl4 + 8KMnO4 → K2[PtCl6] + 2PtO2 + 6KClO2 + 8MnO2
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The reaction of platinum(IV) chloride and potassium permanganate yields potassium hexachloridoplatinate(IV), platinum(IV) oxide, potassium chlorite, and manganese(IV) oxide (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 platinum(IV) chloride and potassium permanganate
General equation
- Reaction of hardly oxidizable species and oxidizing species
- Hardly oxidizable speciesReducing agent + Oxidizing speciesOxidizing agent ⟶ ProductOxidation product + ProductReduction product
Oxidation state of each atom
- Reaction of platinum(IV) chloride and potassium permanganate
Reactants
| Chemical formula | Name | Coefficient | Type | Type in general equation |
|---|---|---|---|---|
| PtCl4 | Platinum(IV) chloride | 3 | Reducing | Hardly oxidizable |
| KMnO4 | Potassium permanganate | 8 | Oxidizing | Oxidizing |
Products
| Chemical formula | Name | Coefficient | Type | Type in general equation |
|---|---|---|---|---|
| K2[PtCl6] | Potassium hexachloridoplatinate(IV) | 1 | – | – |
| PtO2 | Platinum(IV) oxide | 2 | – | – |
| KClO2 | Potassium chlorite | 6 | Oxidized | – |
| MnO2 | Manganese(IV) oxide | 8 | Reduced | – |
Thermodynamic changes
Changes in aqueous solution
- Reaction of platinum(IV) chloride 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 | 390.2 | – | – | – |
per 1 mol of | 130.1 | – | – | – |
per 1 mol of | 48.77 | – | – | – |
per 1 mol of | 390.2 | – | – | – |
per 1 mol of | 195.1 | – | – | – |
per 1 mol of | 65.03 | – | – | – |
per 1 mol of | 48.77 | – | – | – |
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 |
|---|---|---|---|---|
| PtCl4 (cr) | -231.8[1] | – | – | – |
| PtCl4 (aq) | -314.2[1] | – | – | – |
| PtCl4 (cr) 5 hydrate | -1752.7[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, (aq):Aqueous solution, (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 |
|---|---|---|---|---|
| K2[PtCl6] (cr) | -1229.3[1] | -1078.5[1] | 333.9[1] | 205.60[1] |
| K2[PtCl6] (ai) | -1172.8[1] | -1049.2[1] | 424.7[1] | – |
| PtO2 (g) | 171.5[1] | 167.8[1] | – | – |
| KClO2 (ai) | -318.8[1] | -266.1[1] | 203.8[1] | – |
| MnO2 (cr) | -520.03[1] | -465.14[1] | 53.05[1] | 54.14[1] |
| MnO2 (am) precipitated | -502.5[1] | – | – | – |
* (cr):Crystalline solid, (ai):Ionized aqueous solution, (g):Gas, (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°, -231.8 kJ · mol−1
- ^ ΔfH°, -314.2 kJ · mol−1
- ^ ΔfH°, -1752.7 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°, -1229.3 kJ · mol−1
- ^ ΔfG°, -1078.5 kJ · mol−1
- ^ S°, 333.9 J · K−1 · mol−1
- ^ Cp°, 205.60 J · K−1 · mol−1
- ^ ΔfH°, -1172.8 kJ · mol−1
- ^ ΔfG°, -1049.2 kJ · mol−1
- ^ S°, 424.7 J · K−1 · mol−1
- ^ ΔfH°, 171.5 kJ · mol−1
- ^ ΔfG°, 167.8 kJ · mol−1
- ^ ΔfH°, -318.8 kJ · mol−1
- ^ ΔfG°, -266.1 kJ · mol−1
- ^ S°, 203.8 J · K−1 · mol−1
- ^ ΔfH°, -520.03 kJ · mol−1
- ^ ΔfG°, -465.14 kJ · mol−1
- ^ S°, 53.05 J · K−1 · mol−1
- ^ Cp°, 54.14 J · K−1 · mol−1
- ^ ΔfH°, -502.5 kJ · mol−1