SnF2 + Cs2S 💧→ SnS↓ + 2CsF
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- Reaction of tin(II) fluoride and caesium sulfide
The reaction of tin(II) fluoride and caesium sulfide yields tin(II) sulfide and caesium fluoride. This reaction is an acid-base reaction and is classified as follows:
Table of contents
Reaction data
Chemical equation
- Reaction of tin(II) fluoride and caesium sulfide
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 tin(II) fluoride and caesium sulfide
Reactants
| Chemical formula | Name | Coefficient | Type | Type in general equation |
|---|---|---|---|---|
| SnF2 | Tin(II) fluoride | 1 | Lewis acid | Very soluble in water |
| Cs2S | Caesium sulfide | 1 | Lewis base | Very soluble in water |
Products
| Chemical formula | Name | Coefficient | Type | Type in general equation |
|---|---|---|---|---|
| SnS | Tin(II) sulfide | 1 | Lewis conjugate | Insoluble in water |
| CsF | Caesium fluoride | 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 |
|---|---|---|---|---|
| SnF2 | – | – | – | – |
| Cs2S (cr) | -359.8[1] | – | – | – |
| Cs2S (ai) | -483.7[1] | -498.3[1] | 251.5[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 |
|---|---|---|---|---|
| SnS (cr) | -100[1] | -98.3[1] | 77.0[1] | 49.25[1] |
| SnS (g) | 119.2[1] | – | – | – |
| CsF (cr) | -553.5[1] | -525.5[1] | 92.80[1] | 51.09[1] |
| CsF (g) | -359.0[1] | -375.7[1] | 243.24[1] | 35.86[1] |
| CsF (ai) | -590.91[1] | -570.81[1] | 119.2[1] | – |
| CsF (cr) 1.5 hydrate | -1013.8[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°, -359.8 kJ · mol−1
- ^ ΔfH°, -483.7 kJ · mol−1
- ^ ΔfG°, -498.3 kJ · mol−1
- ^ S°, 251.5 J · K−1 · mol−1
- ^ ΔfH°, -100. kJ · mol−1
- ^ ΔfG°, -98.3 kJ · mol−1
- ^ S°, 77.0 J · K−1 · mol−1
- ^ Cp°, 49.25 J · K−1 · mol−1
- ^ ΔfH°, 119.2 kJ · mol−1
- ^ ΔfH°, -553.5 kJ · mol−1
- ^ ΔfG°, -525.5 kJ · mol−1
- ^ S°, 92.80 J · K−1 · mol−1
- ^ Cp°, 51.09 J · K−1 · mol−1
- ^ ΔfH°, -359.0 kJ · mol−1
- ^ ΔfG°, -375.7 kJ · mol−1
- ^ S°, 243.24 J · K−1 · mol−1
- ^ Cp°, 35.86 J · K−1 · mol−1
- ^ ΔfH°, -590.91 kJ · mol−1
- ^ ΔfG°, -570.81 kJ · mol−1
- ^ S°, 119.2 J · K−1 · mol−1
- ^ ΔfH°, -1013.8 kJ · mol−1