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2BI3 + 3Cl2 → 2BCl3 + 3I2

The reaction of boron triiodide and chlorine yields boron trichloride and iodine. 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 categories

Reaction data

Chemical equation

General equation

Reaction of oxidizable species and oxidizing species
Oxidizable speciesReducing agent + Oxidizing speciesOxidizing agent
ProductOxidation product + ProductReduction product

Oxidation state of each atom

Reaction of boron triiodide and chlorine

Reactants

Chemical formulaNameCoefficientTypeType in general
equation
BI3Boron triiodide2
Reducing
Oxidizable
Cl2Chlorine3
Oxidizing
Oxidizing

Products

Chemical formulaNameCoefficientTypeType in general
equation
BCl3Boron trichloride2
Reduced
I2Iodine3
Oxidized

Thermodynamic changes

Changes in aqueous solution

Reaction of boron triiodide and chlorine
ΔrG−790.50 kJ/mol
K3.09 × 10138
pK−138.49
2BI3Gas + 3Cl2Un-ionized aqueous solution
2BCl3Gas + 3I2Un-ionized 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
−811.8−790.50−70
per 1 mol of
−405.9−395.25−35
per 1 mol of
−270.6−263.50−23
per 1 mol of
−405.9−395.25−35
per 1 mol of
−270.6−263.50−23

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
BI3 (g)71.13[1]20.72[1]349.18[1]70.79[1]
Cl2 (g)0[1]0[1]223.066[1]33.907[1]
Cl2 (ao)-23.4[1]6.94[1]121[1]
* (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
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]
I2 (cr)0[1]0[1]116.135[1]54.438[1]
I2 (g)62.438[1]19.327[1]260.69[1]36.90[1]
I2 (ao)22.6[1]16.40[1]137.2[1]
* (cr):Crystalline solid, (l):Liquid, (g):Gas, (ao):Un-ionized aqueous solution

References

List of references

  1. 1