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3NaCl + 4NaMnO4 + 2H2O 🔥→ 3NaClO2 + 4NaOH + 4MnO2

The reaction of sodium chloride, sodium permanganate, and water yields sodium chlorite, sodium hydroxide, and manganese(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 under neutral condition
Hardly oxidizable speciesReducing agent + Oxidizing speciesOxidizing agent + H2ONon-redox agent
ProductOxidation product + ProductReduction product

Oxidation state of each atom

Reaction of sodium chloride and sodium permanganate under neutral condition

Reactants

Chemical formulaNameCoefficientTypeType in general
equation
NaClSodium chloride3
Reducing
Hardly oxidizable
NaMnO4Sodium permanganate4
Oxidizing
Oxidizing
H2OWater2
Water

Products

Chemical formulaNameCoefficientTypeType in general
equation
NaClO2Sodium chlorite3
Oxidized
NaOHSodium hydroxide4
MnO2Manganese(IV) oxide4
Reduced

Thermodynamic changes

Changes in aqueous solution

Reaction of sodium chloride and sodium permanganate under neutral condition
ΔrG218.8 kJ/mol
K0.47 × 10−38
pK38.33
3NaClIonized aqueous solution + 4NaMnO4Ionized aqueous solution + 2H2OLiquid
🔥
3NaClO2Ionized aqueous solution + 4NaOHIonized aqueous solution + 4MnO2Crystalline solid
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
39.2218.8−601.9
per 1 mol of
13.172.93−200.6
9.8054.70−150.5
per 1 mol of
19.6109.4−300.9
per 1 mol of
13.172.93−200.6
per 1 mol of
9.8054.70−150.5
9.8054.70−150.5

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
NaCl (cr)-411.153[1]-384.138[1]72.13[1]50.50[1]
NaCl (g)-176.65[1]-196.66[1]229.81[1]35.77[1]
NaCl (ai)-407.27[1]-393.133[1]115.5[1]-90.0[1]
NaMnO4 (ai)-781.6[1]-709.1[1]250.2[1]
NaMnO4 (cr)
1 hydrate
-1079.14[1]
NaMnO4 (cr)
3 hydrate
-1672.85[1]
H2O (cr)
H2O (l)-285.830[1]-237.129[1]69.91[1]75.291[1]
H2O (g)-241.818[1]-228.572[1]188.825[1]33.577[1]
* (cr):Crystalline solid, (g):Gas, (ai):Ionized aqueous solution, (l):Liquid

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
NaClO2 (cr)-307.02[1]
NaClO2 (ai)-306.7[1]-244.7[1]160.2[1]
NaClO2 (cr)
3 hydrate
-1192.77[1]
NaOH (cr)-425.609[1]-379.494[1]64.455[1]59.54[1]
NaOH (g)-207.1[1]-210.0[1]228.43[1]48.37[1]
NaOH (ai)-470.114[1]-419.150[1]48.1[1]-102.1[1]
NaOH (cr)
1 hydrate
-734.543[1]-629.338[1]99.50[1]90.17[1]
NaOH (l)
2 hydrate
-1019.076[1]-873.091[1]195.979[1]239.41[1]
NaOH (l)
3.5 hydrate
-1459.798[1]-1236.356[1]286.089[1]354.43[1]
NaOH (l)
4 hydrate
-1605.15[1]-1356.64[1]318.70[1]
NaOH (l)
5 hydrate
-1894.31[1]-1596.34[1]386.06[1]
NaOH (l)
7 hydrate
-2469.02[1]-2073.80[1]526.31[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, (l):Liquid, (am):Amorphous solid

References

List of references

  1. 1
    Janiel J. Reed (1989)
    The NBS Tables of Chemical Thermodynamic Properties: Selected Values for Inorganic and C1 and C2 Organic Substances in SI Units
    National Institute of Standards and Technology (NIST)