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3Ca(ClO)2 + H2SeO4 → 2CaCl2 + CaSeO4 + 2HClO3

The reaction of calcium hypochlorite and selenic acid yields calcium chloride, calcium selenate, and chloric acid (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
Ca(ClO)2Calcium hypochlorite3
Self redoxing
H2SeO4Selenic acid1
Acid

Products

Chemical formulaNameCoefficientTypeType in general
equation
CaCl2Calcium chloride2
Reduced
CaSeO4Calcium selenate1
HClO3Chloric acid2
Oxidized

Thermodynamic changes

Changes in aqueous solution

Reaction of calcium hypochlorite and selenic acid
3Ca(ClO)2Aqueous solution + H2SeO4Crystalline solid
2CaCl2Ionized aqueous solution + CaSeO4Crystalline solid + 2HClO3Ionized aqueous solution
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
−278.7
−92.90
per 1 mol of
−278.7
per 1 mol of
−139.3
per 1 mol of
−278.7
per 1 mol of
−139.3

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
Ca(ClO)2 (aq)-754.4[1]
H2SeO4 (cr)-530.1[1]
H2SeO4 (cr)
1 hydrate
-840.6[1]
H2SeO4 (l)
1 hydrate
-820.5[1]
* (aq):Aqueous solution, (cr):Crystalline solid, (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
CaCl2 (cr)-795.8[1]-748.1[1]104.6[1]72.59[1]
CaCl2 (g)-471.5[1]-479.24[1]290.27[1]59.33[1]
CaCl2 (ai)-877.13[1]-816.01[1]59.8[1]
CaCl2 (cr)
1 hydrate
-1109.2[1]
CaCl2 (cr)
2 hydrate
-1402.9[1]
CaCl2 (cr)
4 hydrate
-2009.6[1]
CaCl2 (cr)
6 hydrate
-2607.9[1]
CaSeO4 (cr)-1109.81[1]
CaSeO4 (cr)
2 hydrate
-1706.7[1]-1486.8[1]222[1]
HClO3 (ai)-103.97[1]-7.95[1]162.3[1]
* (cr):Crystalline solid, (g):Gas, (ai):Ionized aqueous solution

References

List of references

  1. 1