MgF2 → MgF+ + F−
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- Electrolytic dissociation of magnesium fluoride
Electrolytic dissociation of magnesium fluoride yields magnesium fluoride ion and fluoride ion (Other reactions are here). This reaction is an acid-base reaction and is classified as follows:
Table of contents
Reaction data
Chemical equation
- Electrolytic dissociation of magnesium fluoride
General equation
- Electrolytic dissociation of salt
- SaltLewis conjugate ⟶ CationLewis acid + AnionLewis base
Oxidation state of each atom
- Electrolytic dissociation of magnesium fluoride
Reactants
| Chemical formula | Name | Coefficient | Type | Type in general equation |
|---|---|---|---|---|
| MgF2 | Magnesium fluoride | 1 | Lewis conjugate | Salt |
Products
| Chemical formula | Name | Coefficient | Type | Type in general equation |
|---|---|---|---|---|
| MgF+ | Magnesium fluoride ion | 1 | Lewis acid | Cation |
| F− | Fluoride ion | 1 | Lewis base | Anion |
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 |
|---|---|---|---|---|
| MgF2 (cr) | -1123.4[1] | -1070.2[1] | 57.24[1] | 61.59[1] |
| MgF2 (g) | -723.8[1] | -730.5[1] | 258.39[1] | 48.62[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 |
|---|---|---|---|---|
| MgF+ (g) | 527[1] | – | – | – |
| F− (g) | -255.39[1] | – | – | – |
| F− (ao) | -332.63[1] | -278.79[1] | -13.8[1] | -106.7[1] |
* (g):Gas, (ao):Un-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°, -1123.4 kJ · mol−1
- ^ ΔfG°, -1070.2 kJ · mol−1
- ^ S°, 57.24 J · K−1 · mol−1
- ^ Cp°, 61.59 J · K−1 · mol−1
- ^ ΔfH°, -723.8 kJ · mol−1
- ^ ΔfG°, -730.5 kJ · mol−1
- ^ S°, 258.39 J · K−1 · mol−1
- ^ Cp°, 48.62 J · K−1 · mol−1
- ^ ΔfH°, 527. kJ · mol−1
- ^ ΔfH°, -255.39 kJ · mol−1
- ^ ΔfH°, -332.63 kJ · mol−1
- ^ ΔfG°, -278.79 kJ · mol−1
- ^ S°, -13.8 J · K−1 · mol−1
- ^ Cp°, -106.7 J · K−1 · mol−1