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Na2[PtCl6] + 4KMnO4 → 2NaClO + 4KClO + 4MnO2 + PtO2

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
  1. 1Reaction data
  2. 2Thermodynamic changes
  3. 3References
  4. 4Related reactions
  5. 5Related categories

Reaction data

Chemical equation

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

Reactants

Chemical formulaNameCoefficientTypeType in general
equation
Na2[PtCl6]Sodium hexachloridoplatinate(IV)1
Reducing
Hardly oxidizable
KMnO4Potassium permanganate4
Oxidizing
Oxidizing

Products

Chemical formulaNameCoefficientTypeType in general
equation
NaClOSodium hypochlorite2
Oxidized
KClOPotassium hypochlorite4
Oxidized
MnO2Manganese(IV) oxide4
Reduced
PtO2Platinum(IV) oxide1

Thermodynamic changes

Changes in aqueous solution

Reaction of sodium hexachloridoplatinate(IV) and potassium permanganate
Na2[PtCl6]Crystalline solid + 4KMnO4Ionized aqueous solution
2NaClOIonized aqueous solution + 4KClOIonized aqueous solution + 4MnO2Crystalline solid + PtO2Gas
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
250.3
62.58
125.2
62.58
62.58
per 1 mol of
250.3

Thermodynamic data of reactants

Chemical formulaStandard 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 formulaStandard 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

  1. 1