LiNO2 + NH4F 💧→ LiF↓ + NH4NO2
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The reaction of lithium nitrite and ammonium fluoride yields lithium fluoride and ammonium nitrite. This reaction is an acid-base reaction and is classified as follows:
Table of contents
Reaction data
Chemical equation
- Reaction of lithium nitrite and ammonium fluoride
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 lithium nitrite and ammonium fluoride
Reactants
| Chemical formula | Name | Coefficient | Type | Type in general equation |
|---|---|---|---|---|
| LiNO2 | Lithium nitrite | 1 | Lewis acid | Very soluble in water |
| NH4F | Ammonium fluoride | 1 | Lewis base | Very soluble in water |
Products
| Chemical formula | Name | Coefficient | Type | Type in general equation |
|---|---|---|---|---|
| LiF | Lithium fluoride | 1 | Lewis conjugate | Slightly soluble in water |
| NH4NO2 | Ammonium nitrite | 1 | Non-redox product | – |
Thermodynamic changes
Changes in standard condition
- Reaction of lithium nitrite and ammonium fluoride
| 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 | −36.1 | – | – | – |
per 1 mol of | −36.1 | – | – | – |
per 1 mol of | −36.1 | – | – | – |
per 1 mol of | −36.1 | – | – | – |
per 1 mol of | −36.1 | – | – | – |
Changes in aqueous solution
- Reaction of lithium nitrite and ammonium fluoride◆
ΔrG −15.7 kJ/mol K 5.63 × 102 pK −2.75
| 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 | −4.9 | −15.7 | 35.7 | 79.7 |
per 1 mol of | −4.9 | −15.7 | 35.7 | 79.7 |
per 1 mol of | −4.9 | −15.7 | 35.7 | 79.7 |
per 1 mol of | −4.9 | −15.7 | 35.7 | 79.7 |
per 1 mol of | −4.9 | −15.7 | 35.7 | 79.7 |
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 |
|---|---|---|---|---|
| LiNO2 (cr) | -372.4[1] | -302.0[1] | 96[1] | – |
| LiNO2 (ai) | -383.09[1] | -325.5[1] | 136.8[1] | -28.9[1] |
| LiNO2 (cr) 0.5 hydrate | – | -423.3[1] | – | – |
| LiNO2 (cr) 1 hydrate | -676.1[1] | -544.2[1] | 121[1] | – |
| NH4F (cr) | -463.96[1] | -348.68[1] | 71.96[1] | 65.27[1] |
| NH4F (ai) | -465.14[1] | -358.09[1] | 99.6[1] | -26.8[1] |
* (cr):Crystalline solid, (ai):Ionized aqueous solution
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 |
|---|---|---|---|---|
| LiF (cr) | -615.97[1] | -587.71[1] | 35.65[1] | 41.59[1] |
| LiF (g) | -339.82[1] | -360.64[1] | 200.297[1] | 31.30[1] |
| LiF (ai) | -611.12[1] | -571.9[1] | -0.4[1] | -38.07[1] |
| NH4NO2 (cr) | -256.5[1] | – | – | – |
| NH4NO2 (ai) | -237.2[1] | -111.6[1] | 236.4[1] | -17.6[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°, -372.4 kJ · mol−1
- ^ ΔfG°, -302.0 kJ · mol−1
- ^ S°, 96. J · K−1 · mol−1
- ^ ΔfH°, -383.09 kJ · mol−1
- ^ ΔfG°, -325.5 kJ · mol−1
- ^ S°, 136.8 J · K−1 · mol−1
- ^ Cp°, -28.9 J · K−1 · mol−1
- ^ ΔfG°, -423.3 kJ · mol−1
- ^ ΔfH°, -676.1 kJ · mol−1
- ^ ΔfG°, -544.2 kJ · mol−1
- ^ S°, 121. J · K−1 · mol−1
- ^ ΔfH°, -463.96 kJ · mol−1
- ^ ΔfG°, -348.68 kJ · mol−1
- ^ S°, 71.96 J · K−1 · mol−1
- ^ Cp°, 65.27 J · K−1 · mol−1
- ^ ΔfH°, -465.14 kJ · mol−1
- ^ ΔfG°, -358.09 kJ · mol−1
- ^ S°, 99.6 J · K−1 · mol−1
- ^ Cp°, -26.8 J · K−1 · mol−1
- ^ ΔfH°, -615.97 kJ · mol−1
- ^ ΔfG°, -587.71 kJ · mol−1
- ^ S°, 35.65 J · K−1 · mol−1
- ^ Cp°, 41.59 J · K−1 · mol−1
- ^ ΔfH°, -339.82 kJ · mol−1
- ^ ΔfG°, -360.64 kJ · mol−1
- ^ S°, 200.297 J · K−1 · mol−1
- ^ Cp°, 31.30 J · K−1 · mol−1
- ^ ΔfH°, -611.12 kJ · mol−1
- ^ ΔfG°, -571.9 kJ · mol−1
- ^ S°, -0.4 J · K−1 · mol−1
- ^ Cp°, -38.07 J · K−1 · mol−1
- ^ ΔfH°, -256.5 kJ · mol−1
- ^ ΔfH°, -237.2 kJ · mol−1
- ^ ΔfG°, -111.6 kJ · mol−1
- ^ S°, 236.4 J · K−1 · mol−1
- ^ Cp°, -17.6 J · K−1 · mol−1