Chlorine Displacing Bromine from Sodium Bromide
Cl2 + 2NaBr → 2NaCl + Br2
Overview
Chlorine gas displaces bromine from sodium bromide solution because chlorine is a stronger oxidizing agent than bromine. The colorless solution turns orange-brown as molecular bromine is liberated. This demonstrates the halogen displacement series.
Participants
| Role | Substance | Coefficient | State |
|---|---|---|---|
| Reactant | Chlorine Cl | 1 | (g) |
| Product | Bromine Br | 1 | (l) |
| Product | Sodium Chloride NaCl | 2 | (aq) |
Everyday Example
Chlorination of sea water to extract bromine for flame retardant production uses this displacement principle on an industrial scale.
Industrial Importance
This displacement reaction is the basis for industrial bromine extraction from brine and seawater, producing most of the world's bromine supply.
Properties
- Type
- Single Replacement
- Reversible
- No
- Energy
- Exothermic
- ΔH
- -94.0 kJ/mol
Related Reactions
Aluminum Reacting with Hydrochloric Acid
Aluminum Reacting with Iron(III) Oxide (Thermite)
Aluminum Reducing Chromium Oxide (Aluminothermic)
Calcium Reacting with Water
Carbon Reducing Iron Oxide in Blast Furnace
Chlorine Displacing Iodine from Potassium Iodide
Copper Displacing Silver from Silver Nitrate
Fluorine Displacing Chlorine from Sodium Chloride
Hydrogen Reducing Copper Oxide
Iron Displacing Copper from Copper Sulfate
Frequently Asked Questions
What is the equation for Chlorine Displacing Bromine from Sodium Bromide?
The balanced equation is: Cl₂ + 2NaBr → 2NaCl + Br₂.
What type of reaction is Chlorine Displacing Bromine from Sodium Bromide?
Chlorine Displacing Bromine from Sodium Bromide is a single replacement reaction.
Is Chlorine Displacing Bromine from Sodium Bromide exothermic or endothermic?
Chlorine Displacing Bromine from Sodium Bromide is exothermic (releases energy). The enthalpy change (ΔH) is -94.0 kJ/mol.