3Ca(HSO4)2 + 8Na3PO4 💧→ Ca3(PO4)2↓ + 6Na2HPO4 + 6Na2SO4
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The reaction of calcium hydrogensulfate and sodium phosphate yields calcium phosphate, sodium hydrogenphosphate, and sodium sulfate (Other reactions are here). This reaction is an acid-base reaction and is classified as follows:
Table of contents
Reaction data
Chemical equation
- Reaction of calcium hydrogensulfate and sodium phosphate
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 calcium hydrogensulfate and sodium phosphate
Reactants
| Chemical formula | Name | Coefficient | Type | Type in general equation |
|---|---|---|---|---|
| Ca(HSO4)2 | Calcium hydrogensulfate | 3 | Lewis acid | Soluble in water |
| Na3PO4 | Sodium phosphate | 8 | Lewis base | Soluble in water |
Products
| Chemical formula | Name | Coefficient | Type | Type in general equation |
|---|---|---|---|---|
| Ca3(PO4)2 | Calcium phosphate | 1 | Lewis conjugate | Very slightly soluble in water |
| Na2HPO4 | Sodium hydrogenphosphate | 6 | Non-redox product | – |
| Na2SO4 | Sodium sulfate | 6 | 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 |
|---|---|---|---|---|
| Ca(HSO4)2 | – | – | – | – |
| Na3PO4 (cr) | -1917.40[1] | -1788.80[1] | 173.80[1] | 153.47[1] |
| Na3PO4 (ai) | -1997.9[1] | -1804.5[1] | -43.3[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 |
|---|---|---|---|---|
| Ca3(PO4)2 (cr) β, low temp. form | -4120.8[1] | -3884.7[1] | 236.0[1] | 227.82[1] |
| Ca3(PO4)2 (cr) α, high temp. form | -4109.9[1] | -3875.5[1] | 240.91[1] | 231.58[1] |
| Ca3(PO4)2 (ai) | -4183.2[1] | -3698.1[1] | -599.9[1] | – |
| Na2HPO4 (cr) | -1748.1[1] | -1608.2[1] | 150.50[1] | 135.31[1] |
| Na2HPO4 (ai) | -1772.38[1] | -1612.98[1] | 84.5[1] | – |
| Na2HPO4 (cr) 2 hydrate | -2346.0[1] | -2088.5[1] | 221.3[1] | – |
| Na2HPO4 (cr) 7 hydrate | -3821.7[1] | -3279.8[1] | 434.59[1] | – |
| Na2HPO4 (cr) 12 hydrate | -5297.8[1] | -4467.8[1] | 633.83[1] | – |
| Na2SO4 (cr) orthorhombic | -1387.08[1] | -1270.16[1] | 149.58[1] | 128.20[1] |
| Na2SO4 (cr) metastable | – | – | 154.934[1] | 129.29[1] |
| Na2SO4 (ai) | -1389.51[1] | -1268.36[1] | 138.1[1] | -201[1] |
| Na2SO4 (cr) 10 hydrate | -4327.26[1] | -3646.85[1] | 592.0[1] | – |
* (cr):Crystalline solid, (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°, -1917.40 kJ · mol−1
- ^ ΔfG°, -1788.80 kJ · mol−1
- ^ S°, 173.80 J · K−1 · mol−1
- ^ Cp°, 153.47 J · K−1 · mol−1
- ^ ΔfH°, -1997.9 kJ · mol−1
- ^ ΔfG°, -1804.5 kJ · mol−1
- ^ S°, -43.3 J · K−1 · mol−1
- ^ ΔfH°, -4120.8 kJ · mol−1
- ^ ΔfG°, -3884.7 kJ · mol−1
- ^ S°, 236.0 J · K−1 · mol−1
- ^ Cp°, 227.82 J · K−1 · mol−1
- ^ ΔfH°, -4109.9 kJ · mol−1
- ^ ΔfG°, -3875.5 kJ · mol−1
- ^ S°, 240.91 J · K−1 · mol−1
- ^ Cp°, 231.58 J · K−1 · mol−1
- ^ ΔfH°, -4183.2 kJ · mol−1
- ^ ΔfG°, -3698.1 kJ · mol−1
- ^ S°, -599.9 J · K−1 · mol−1
- ^ ΔfH°, -1748.1 kJ · mol−1
- ^ ΔfG°, -1608.2 kJ · mol−1
- ^ S°, 150.50 J · K−1 · mol−1
- ^ Cp°, 135.31 J · K−1 · mol−1
- ^ ΔfH°, -1772.38 kJ · mol−1
- ^ ΔfG°, -1612.98 kJ · mol−1
- ^ S°, 84.5 J · K−1 · mol−1
- ^ ΔfH°, -2346.0 kJ · mol−1
- ^ ΔfG°, -2088.5 kJ · mol−1
- ^ S°, 221.3 J · K−1 · mol−1
- ^ ΔfH°, -3821.7 kJ · mol−1
- ^ ΔfG°, -3279.8 kJ · mol−1
- ^ S°, 434.59 J · K−1 · mol−1
- ^ ΔfH°, -5297.8 kJ · mol−1
- ^ ΔfG°, -4467.8 kJ · mol−1
- ^ S°, 633.83 J · K−1 · mol−1
- ^ ΔfH°, -1387.08 kJ · mol−1
- ^ ΔfG°, -1270.16 kJ · mol−1
- ^ S°, 149.58 J · K−1 · mol−1
- ^ Cp°, 128.20 J · K−1 · mol−1
- ^ S°, 154.934 J · K−1 · mol−1
- ^ Cp°, 129.29 J · K−1 · mol−1
- ^ ΔfH°, -1389.51 kJ · mol−1
- ^ ΔfG°, -1268.36 kJ · mol−1
- ^ S°, 138.1 J · K−1 · mol−1
- ^ Cp°, -201. J · K−1 · mol−1
- ^ ΔfH°, -4327.26 kJ · mol−1
- ^ ΔfG°, -3646.85 kJ · mol−1
- ^ S°, 592.0 J · K−1 · mol−1