Irreversible reaction
Chlor-alkali electrolysis (overall cell reaction)
- Direction
- Irreversible
- Processes
- 1
- Stated as
- Stoichiometry only
- Heat of reaction
- ΔH = 445,790 kJ/kmol (one process)
- Element balance
- Checked: balances
As the processes state itStoichiometry, conversions, heats of reaction and catalyst windows are taken from each process's files with their provenance. The build checks only that each process's equation balances in every element, from the process's own component formulas; it does not check the numbers. A process's design maturity applies to them.
Species
| Species | Name | CAS | Role | Coefficient |
|---|---|---|---|---|
| NaCl | Sodium chloride | 7647-14-5 | reactant | -2 |
| H2O | Water | 7732-18-5 | reactant | -2 |
| Cl2 | Chlorine | 7782-50-5 | product | 1 |
| H2 | Hydrogen | 1333-74-0 | product | 1 |
| NaOH | Sodium hydroxide | 1310-73-2 | product | 2 |
In the processes
- Chlor-alkali by membrane-cell electrolysis (100 kt/a Cl2, 50 wt-% caustic soda, hydrogen)Concept · not reviewed
CHLORALKALI· Chlor-alkali electrolysis (overall cell reaction)2 NaCl + 2 H2O → Cl2 + H2 + 2 NaOH- Element balance
- Balances in every element
- Heat of reaction
- ΔH = 445,790 kJ/kmol at 298.15 K, as written (given: CODATA Key Values (Cox et al. 1989): 2 x (-470.355) - 2 x (-407.42) - 2 x (-285.830) kJ/mol; NaCl and NaOH aqueous at infinite dilution)
Sources
What the processes cite for this reaction, each source once: for the reaction itself, its conversion, its heat of reaction or its catalyst. As the processes write them; DOIs, US patent numbers and web addresses are linked.
CODATA Key Values (Cox et al. 1989): 2 x (-470.355) - 2 x (-407.42) - 2 x (-285.830) kJ/mol; NaCl and NaOH aqueous at infinite dilution
For the heat of reaction · cited by Chlor-alkali by membrane-cell electrolysis (100 kt/a Cl2, 50 wt-% caustic soda, hydrogen)