Na2[PtCl6] + 4KMnO4 → 2NaClO + 4KClO + 4MnO2 + PtO2
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The reaction of sodium hexachloridoplatinate(IV) and potassium permanganate yields sodium hypochlorite, potassium hypochlorite, manganese(IV) oxide, and platinum(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 sodium hexachloridoplatinate(IV) 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 sodium hexachloridoplatinate(IV) and potassium permanganate
Reactants
Chemical formula | Name | Coefficient | Type | Type in general equation |
---|---|---|---|---|
Na2[PtCl6] | Sodium hexachloridoplatinate(IV) | 1 | Reducing | Hardly oxidizable |
KMnO4 | Potassium permanganate | 4 | Oxidizing | Oxidizing |
Products
Chemical formula | Name | Coefficient | Type | Type in general equation |
---|---|---|---|---|
NaClO | Sodium hypochlorite | 2 | Oxidized | – |
KClO | Potassium hypochlorite | 4 | Oxidized | – |
MnO2 | Manganese(IV) oxide | 4 | Reduced | – |
PtO2 | Platinum(IV) oxide | 1 | – | – |
Thermodynamic changes
Changes in aqueous solution
- Reaction of sodium hexachloridoplatinate(IV) 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 | 250.3 | – | – | – |
per 1 mol of | 250.3 | – | – | – |
per 1 mol of | 62.58 | – | – | – |
per 1 mol of | 125.2 | – | – | – |
per 1 mol of | 62.58 | – | – | – |
per 1 mol of | 62.58 | – | – | – |
per 1 mol of | 250.3 | – | – | – |
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 |
---|---|---|---|---|
Na2[PtCl6] (cr) | -1115.9[1] | – | – | – |
Na2[PtCl6] (cr) 2 hydrate | -1723.8[1] | – | – | – |
Na2[PtCl6] (cr) 6 hydrate | -2912.1[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, (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 |
---|---|---|---|---|
NaClO (ai) | -347.3[1] | -298.7[1] | 100[1] | – |
KClO (ai) | -359.4[1] | -320.0[1] | 146[1] | – |
MnO2 (cr) | -520.03[1] | -465.14[1] | 53.05[1] | 54.14[1] |
MnO2 (am) precipitated | -502.5[1] | – | – | – |
PtO2 (g) | 171.5[1] | 167.8[1] | – | – |
* (ai):Ionized aqueous solution, (cr):Crystalline solid, (am):Amorphous solid, (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)
- ^ ΔfH°, -1115.9 kJ · mol−1
- ^ ΔfH°, -1723.8 kJ · mol−1
- ^ ΔfH°, -2912.1 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°, -347.3 kJ · mol−1
- ^ ΔfG°, -298.7 kJ · mol−1
- ^ S°, 100. J · K−1 · mol−1
- ^ ΔfH°, -359.4 kJ · mol−1
- ^ ΔfG°, -320.0 kJ · mol−1
- ^ S°, 146. 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
- ^ ΔfH°, 171.5 kJ · mol−1
- ^ ΔfG°, 167.8 kJ · mol−1