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15Fe + 4P4O10 → 5Fe3(PO4)2 + 6P

The reaction of iron and tetraphosphorus decaoxide yields iron(II) phosphate and phosphorus (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 reducible species
Reducing speciesReducing agent + Reducible speciesOxidizing agent
ProductOxidation product + ProductReduction product

Oxidation state of each atom

Reactants

Chemical formulaNameCoefficientTypeType in general
equation
FeIron15
Reducing
Reducing
P4O10Tetraphosphorus decaoxide4
Oxidizing
Reducible

Products

Chemical formulaNameCoefficientTypeType in general
equation
Fe3(PO4)2Iron(II) phosphate5
Oxidized
PPhosphorus6
Reduced

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
Fe (cr)0[1]0[1]27.28[1]25.10[1]
Fe (g)416.3[1]370.7[1]180.490[1]25.677[1]
P4O10 (cr)
hexagonal
-2984.0[1]-2697.7[1]228.86[1]211.71[1]
P4O10 (am)-3042[1]
* (cr):Crystalline solid, (g):Gas, (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
Fe3(PO4)2
P (cr)
white
0[1]0[1]41.09[1]23.84[1]
P (cr)
red, triclinic
-17.6[1]-12.1[1]22.80[1]21.21[1]
P (cr)
black
-39.3[1]
P (am)
red
-7.5[1]
P (g)314.64[1]278.25[1]163.193[1]20.786[1]
* (cr):Crystalline solid, (am):Amorphous solid, (g):Gas

References

List of references

  1. 1