2AsI3 + 3Fe2O3 → 2FeAsO4 + 3FeI2 + FeO
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- Reaction of and iron(III) oxide
The reaction of and iron(III) oxide yields iron(III) arsenate, iron(II) iodide, and iron(II) oxide (Other reactions are here). This reaction is an oxidation-reduction reaction and is classified as follows:
Table of contents
Reaction data
Chemical equation
- Reaction of and iron(III) oxide
General equation
- Reaction of reducing species and reducible species
- Reducing speciesReducing agent + Reducible speciesOxidizing agent ⟶ ProductOxidation product + ProductReduction product
Oxidation state of each atom
- Reaction of and iron(III) oxide
Reactants
Chemical formula | Name | Coefficient | Type | Type in general equation |
---|---|---|---|---|
2 | Reducing | Reducing | ||
Fe2O3 | Iron(III) oxide | 3 | Oxidizing | Reducible |
Products
Chemical formula | Name | Coefficient | Type | Type in general equation |
---|---|---|---|---|
FeAsO4 | Iron(III) arsenate | 2 | Oxidized | – |
FeI2 | Iron(II) iodide | 3 | Reduced | – |
FeO | Iron(II) oxide | 1 | Reduced | – |
Thermodynamic changes
Thermodynamic data of reactants
Chemical formula | Standard 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 |
---|---|---|---|---|
(cr) | -58.2[1] | -59.4[1] | 213.05[1] | 105.77[1] |
(g) | – | – | 388.34[1] | 80.63[1] |
Fe2O3 (cr) | -824.2[1] | -742.2[1] | 87.40[1] | 103.85[1] |
* (cr):Crystalline solid, (g):Gas
Thermodynamic data of products
Chemical formula | Standard 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 |
---|---|---|---|---|
FeAsO4 | – | – | – | – |
FeI2 (cr) | -113.0[1] | – | – | – |
FeI2 (g) | 60.7[1] | – | – | – |
FeI2 (ai) | -199.6[1] | -182.05[1] | 84.9[1] | – |
FeO (cr) | -272.0[1] | – | – | – |
* (cr):Crystalline solid, (g):Gas, (ai):Ionized aqueous solution
References
List of references
- 1Janiel J. Reed (1989)The NBS Tables of Chemical Thermodynamic Properties: Selected Values for Inorganic and C1 and C2 Organic Substances in SI UnitsNational Institute of Standards and Technology (NIST)
- ^ ΔfH°, -58.2 kJ · mol−1
- ^ ΔfG°, -59.4 kJ · mol−1
- ^ S°, 213.05 J · K−1 · mol−1
- ^ Cp°, 105.77 J · K−1 · mol−1
- ^ S°, 388.34 J · K−1 · mol−1
- ^ Cp°, 80.63 J · K−1 · mol−1
- ^ ΔfH°, -824.2 kJ · mol−1
- ^ ΔfG°, -742.2 kJ · mol−1
- ^ S°, 87.40 J · K−1 · mol−1
- ^ Cp°, 103.85 J · K−1 · mol−1
- ^ ΔfH°, -113.0 kJ · mol−1
- ^ ΔfH°, 60.7 kJ · mol−1
- ^ ΔfH°, -199.6 kJ · mol−1
- ^ ΔfG°, -182.05 kJ · mol−1
- ^ S°, 84.9 J · K−1 · mol−1
- ^ ΔfH°, -272.0 kJ · mol−1