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Mn(OH)2 → Mn4+ + H2O2 + 4e

Oxidation of manganese(II) hydroxide
Mn(OH)2Manganese(II) hydroxide
Mn4+Manganese(IV) ion + H2O2Hydrogen peroxide + 4eElectron

Oxidation of manganese(II) hydroxide yields manganese(IV) ion, hydrogen peroxide (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

Oxidation of manganese(II) hydroxide
Mn(OH)2Manganese(II) hydroxide
Mn4+Manganese(IV) ion + H2O2Hydrogen peroxide + 4eElectron

General equation

Oxidation of oxidizable species
ReactantReducing agent
ProductOxidation product + e

Oxidation state of each atom

Reactants

Chemical formulaNameCoefficientTypeType in general
equation
Mn(OH)2Manganese(II) hydroxide1
Reducing

Products

Chemical formulaNameCoefficientTypeType in general
equation
Mn4+Manganese(IV) ion1
Oxidized
H2O2Hydrogen peroxide1
Oxidized
eElectron4
Electron

Thermodynamic changes

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
Mn(OH)2 (am)
precipitated
-695.4[1]-615.0[1]99.2[1]
* (am):Amorphous solid

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
Mn4+
H2O2 (l)-187.78[1]-120.35[1]109.6[1]89.1[1]
H2O2 (g)-136.31[1]-105.57[1]232.7[1]43.1[1]
H2O2 (ao)-191.17[1]-134.03[1]143.9[1]
e
* (l):Liquid, (g):Gas, (ao):Un-ionized aqueous solution

References

List of references

  1. 1