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2NH4ClO4 + 4O2 → N2O5 + 2HClO4 + 3H2O

The reaction of ammonium perchlorate and oxygen yields dinitrogen pentaoxide, perchloric acid, and water (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 reducing species and oxidizing species
Reducing speciesReducing agent + Oxidizing speciesOxidizing agent
ProductOxidation product + ProductReduction product

Oxidation state of each atom

Reactants

Chemical formulaNameCoefficientTypeType in general
equation
NH4ClO4Ammonium perchlorate2
Reducing
Reducing
O2Oxygen4
Oxidizing
Oxidizing

Products

Chemical formulaNameCoefficientTypeType in general
equation
N2O5Dinitrogen pentaoxide1
Redoxed product
HClO4Perchloric acid2
H2OWater3
Reduced

Thermodynamic changes

Changes in standard condition

Reaction of ammonium perchlorate and oxygen
2NH4ClO4Crystalline solid + 4O2Gas
N2O5Crystalline solid + 2HClO4Liquid + 3H2OLiquid
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
−391.1
−195.6
per 1 mol of
−97.78
−391.1
per 1 mol of
−195.6
per 1 mol of
−130.4

Changes in aqueous solution

Reaction of ammonium perchlorate and oxygen
ΔrG−504.5 kJ/mol
K2.42 × 1088
pK−88.38
2NH4ClO4Ionized aqueous solution + 4O2Un-ionized aqueous solution
N2O5Crystalline solid + 2HClO4Ionized aqueous solution + 3H2OLiquid
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
−588.8−504.5−282.5
−294.4−252.3−141.3
per 1 mol of
−147.2−126.1−70.63
−588.8−504.5−282.5
per 1 mol of
−294.4−252.3−141.3
per 1 mol of
−196.3−168.2−94.17

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
NH4ClO4 (cr)-295.31[1]-88.75[1]186.2[1]
NH4ClO4 (ai)-261.83[1]-87.83[1]295.4[1]
O2 (g)0[1]0[1]205.138[1]29.355[1]
O2 (ao)-11.7[1]16.4[1]110.9[1]
* (cr):Crystalline solid, (ai):Ionized aqueous solution, (g):Gas, (ao):Un-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
N2O5 (cr)-43.1[1]113.9[1]178.2[1]143.1[1]
N2O5 (g)11.3[1]115.1[1]355.7[1]84.5[1]
HClO4 (l)-40.58[1]
HClO4 (ai)-129.33[1]-8.52[1]182.0[1]
HClO4 (cr)
1 hydrate
-382.21[1]
HClO4 (l)
2 hydrate
-677.98[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, (l):Liquid, (ai):Ionized aqueous solution

References

List of references

  1. 1