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4Na3PO4 + 12HClO3 → 12NaClO3 + P4O10 + 6H2O

The reaction of sodium phosphate and chloric acid yields sodium chlorate, tetraphosphorus decaoxide, and water (Other reactions are here). This reaction is an acid-base 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

Oxidation state of each atom

Reactants

Chemical formulaNameCoefficientTypeType in general
equation
Na3PO4Sodium phosphate4
Brønsted base
Salt of weak acid
HClO3Chloric acid12
Brønsted acid
Strong acid

Products

Chemical formulaNameCoefficientTypeType in general
equation
NaClO3Sodium chlorate12
Conjugate base
Salt of strong acid
P4O10Tetraphosphorus decaoxide1
Acidic oxide
H2OWater6
Conjugate acid
Water

Thermodynamic changes

Changes in standard condition

Reaction of sodium phosphate and chloric acid
ΔrG−45.2 kJ/mol
K8.29 × 107
pK−7.92
4Na3PO4Ionized aqueous solution + 12HClO3Ionized aqueous solution
12NaClO3Ionized aqueous solution + P4O10Crystalline solidhexagonal + 6H2OLiquid
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
411.2−45.21529.5
per 1 mol of
102.8−11.3382.38
per 1 mol of
34.27−3.77127.46
per 1 mol of
34.27−3.77127.46
411.2−45.21529.5
per 1 mol of
68.53−7.53254.92

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
Na3PO4 (cr)-1917.40[1]-1788.80[1]173.80[1]153.47[1]
Na3PO4 (ai)-1997.9[1]-1804.5[1]-43.3[1]
HClO3 (ai)-103.97[1]-7.95[1]162.3[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
NaClO3 (cr)-365.774[1]-262.259[1]123.4[1]
NaClO3 (ai)-344.09[1]-269.84[1]221.3[1]
P4O10 (cr)
hexagonal
-2984.0[1]-2697.7[1]228.86[1]211.71[1]
P4O10 (am)-3042[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, (ai):Ionized aqueous solution, (am):Amorphous solid, (l):Liquid, (g):Gas

References

List of references

  1. 1