MgI2 + Na2B4O7 💧→ MgB4O7↓ + 2NaI
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The reaction of magnesium iodide and sodium tetraborate yields magnesium tetraborate and sodium iodide. This reaction is an acid-base reaction and is classified as follows:
Table of contents
Reaction data
Chemical equation
- Reaction of magnesium iodide and sodium tetraborate
General equation
- Precipitation reaction
- Miscible with water/Very soluble in water/Soluble in waterLewis acid + Miscible with water/Very soluble in water/Soluble in waterLewis base💧⟶ Insoluble in water/Very slightly soluble in water/Slightly soluble in waterLewis conjugate + Product(Non-redox product)
Oxidation state of each atom
- Reaction of magnesium iodide and sodium tetraborate
Reactants
| Chemical formula | Name | Coefficient | Type | Type in general equation |
|---|---|---|---|---|
| MgI2 | Magnesium iodide | 1 | Lewis acid | Very soluble in water |
| Na2B4O7 | Sodium tetraborate | 1 | Lewis base | Soluble in water |
Products
| Chemical formula | Name | Coefficient | Type | Type in general equation |
|---|---|---|---|---|
| MgB4O7 | Magnesium tetraborate | 1 | Lewis conjugate | Insoluble in water |
| NaI | Sodium iodide | 2 | Non-redox product | – |
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 |
|---|---|---|---|---|
| MgI2 (cr) | -364.0[1] | -358.2[1] | 129.7[1] | – |
| MgI2 (g) | -172[1] | – | – | – |
| MgI2 (ai) | -577.22[1] | -558.1[1] | 84.5[1] | – |
| Na2B4O7 (cr) | -3291.1[1] | -3096.0[1] | 189.54[1] | 186.77[1] |
| Na2B4O7 (am) | -3271.1[1] | -3076.8[1] | 192.9[1] | – |
| Na2B4O7 (ai) | – | -3128.7[1] | – | – |
| Na2B4O7 (cr) 4 hydrate | -4507.4[1] | – | – | – |
| Na2B4O7 (cr) 5 hydrate | -4802.4[1] | – | – | – |
| Na2B4O7 (cr) 10 hydrate | -6288.6[1] | -5516.0[1] | 586[1] | 615[1] |
* (cr):Crystalline solid, (g):Gas, (ai):Ionized aqueous solution, (am):Amorphous solid
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 |
|---|---|---|---|---|
| MgB4O7 | – | – | – | – |
| NaI (cr) | -287.78[1] | -286.06[1] | 98.53[1] | 52.09[1] |
| NaI (g) | -79.5[1] | -121.0[1] | 248.978[1] | 36.65[1] |
| NaI (ai) | -295.31[1] | -313.47[1] | 170.3[1] | -95.8[1] |
| NaI (cr) 1 hydrate | -883.096[1] | -771.10[1] | 196.2[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°, -364.0 kJ · mol−1
- ^ ΔfG°, -358.2 kJ · mol−1
- ^ S°, 129.7 J · K−1 · mol−1
- ^ ΔfH°, -172. kJ · mol−1
- ^ ΔfH°, -577.22 kJ · mol−1
- ^ ΔfG°, -558.1 kJ · mol−1
- ^ S°, 84.5 J · K−1 · mol−1
- ^ ΔfH°, -3291.1 kJ · mol−1
- ^ ΔfG°, -3096.0 kJ · mol−1
- ^ S°, 189.54 J · K−1 · mol−1
- ^ Cp°, 186.77 J · K−1 · mol−1
- ^ ΔfH°, -3271.1 kJ · mol−1
- ^ ΔfG°, -3076.8 kJ · mol−1
- ^ S°, 192.9 J · K−1 · mol−1
- ^ ΔfG°, -3128.7 kJ · mol−1
- ^ ΔfH°, -4507.4 kJ · mol−1
- ^ ΔfH°, -4802.4 kJ · mol−1
- ^ ΔfH°, -6288.6 kJ · mol−1
- ^ ΔfG°, -5516.0 kJ · mol−1
- ^ S°, 586. J · K−1 · mol−1
- ^ Cp°, 615. J · K−1 · mol−1
- ^ ΔfH°, -287.78 kJ · mol−1
- ^ ΔfG°, -286.06 kJ · mol−1
- ^ S°, 98.53 J · K−1 · mol−1
- ^ Cp°, 52.09 J · K−1 · mol−1
- ^ ΔfH°, -79.5 kJ · mol−1
- ^ ΔfG°, -121.0 kJ · mol−1
- ^ S°, 248.978 J · K−1 · mol−1
- ^ Cp°, 36.65 J · K−1 · mol−1
- ^ ΔfH°, -295.31 kJ · mol−1
- ^ ΔfG°, -313.47 kJ · mol−1
- ^ S°, 170.3 J · K−1 · mol−1
- ^ Cp°, -95.8 J · K−1 · mol−1
- ^ ΔfH°, -883.096 kJ · mol−1
- ^ ΔfG°, -771.10 kJ · mol−1
- ^ S°, 196.2 J · K−1 · mol−1