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6KClO + 14H3BO3 → 3K2B4O7 + 2BCl3↑ + 3O2↑ + 21H2O

The reaction of potassium hypochlorite and boric acid yields potassium tetraborate, boron trichloride, oxygen, 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 self redoxing species and acid
Self-redoxing speciesSelf redox agent + AcidNon-redox agent
ProductOxidation product + ProductReduction product

Oxidation state of each atom

Reactants

Chemical formulaNameCoefficientTypeType in general
equation
KClOPotassium hypochlorite6
Oxidizing
Self redoxing
H3BO3Boric acid14
Acid

Products

Chemical formulaNameCoefficientTypeType in general
equation
K2B4O7Potassium tetraborate3
BCl3Boron trichloride2
Reduced
O2Oxygen3
H2OWater21

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
KClO (ai)-359.4[1]-320.0[1]146[1]
H3BO3 (cr)-1094.33[1]-968.92[1]88.83[1]81.38[1]
H3BO3 (g)-994.1[1]
H3BO3 (ao)-1072.32[1]-968.75[1]162.3[1]
* (ai):Ionized aqueous solution, (cr):Crystalline solid, (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
K2B4O7 (cr)
4 hydrate
-4134.7[1]
BCl3 (cr)
BCl3 (l)-427.2[1]-387.4[1]206.3[1]106.7[1]
BCl3 (g)-403.76[1]-388.72[1]290.10[1]62.72[1]
O2 (g)0[1]0[1]205.138[1]29.355[1]
O2 (ao)-11.7[1]16.4[1]110.9[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, (l):Liquid, (g):Gas, (ao):Un-ionized aqueous solution

References

List of references

  1. 1