AlOH2+ + OH− → Al(OH)2+
Last updated:
- Reaction of aluminium hydroxide ion and hydroxide ion
- AlOH2+Aluminium hydroxide ion + OH−Hydroxide ionAl(OH)2+Aluminium dihydroxide ion⟶
The reaction of aluminium hydroxide ion and hydroxide ion yields aluminium dihydroxide ion (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 aluminium hydroxide ion and hydroxide ion
- AlOH2+Aluminium hydroxide ion + OH−Hydroxide ionAl(OH)2+Aluminium dihydroxide ion⟶
General equation
- Reaction of cation and anion
- CationLewis acid + AnionLewis base ⟶ ProductLewis conjugate + (H2O)
- Reaction of cation and hydroxide ion
- CationLewis acid + OH−Lewis base ⟶ Base/Basic salt ionLewis conjugate + (H2O)
Oxidation state of each atom
- Reaction of aluminium hydroxide ion and hydroxide ion
Reactants
| Chemical formula | Name | Coefficient | Type | Type in general equation |
|---|---|---|---|---|
| AlOH2+ | Aluminium hydroxide ion | 1 | Lewis acid | Cation |
| OH− | Hydroxide ion | 1 | Lewis base | Anion Hydroxide ion |
Products
| Chemical formula | Name | Coefficient | Type | Type in general equation |
|---|---|---|---|---|
| Al(OH)2+ | Aluminium dihydroxide ion | 1 | Lewis conjugate | – Basic salt ion |
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 |
|---|---|---|---|---|
| AlOH2+ (ao) | – | -694.1[1] | – | – |
| OH− (g) | -143.5[1] | – | – | – |
| OH− (ao) | -229.994[1] | -157.244[1] | -10.75[1] | -148.5[1] |
* (ao):Un-ionized aqueous solution, (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 |
|---|---|---|---|---|
| Al(OH)2+ | – | – | – | – |
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)