Chlorine Displacing Iodine from Potassium Iodide

Cl2 + 2KI → 2KCl + I2

Visão geral

Chlorine displaces iodine from potassium iodide solution because chlorine is more electronegative and a stronger oxidizer than iodine. The solution turns brown from the liberated iodine, which can be confirmed with starch indicator turning blue-black.

Participantes

Papel Substância Coeficiente Estado
Reagente Chlorine Cl 1 (g)
Produto Iodine I 1 (s)
Produto Potassium Chloride KCl 2 (aq)

Exemplo do cotidiano

The starch-iodine test, where freed iodine turns starch blue-black, is a common chemistry experiment demonstrating this halogen displacement.

Importância industrial

A compreensão da série de deslocamento de halogéneos é fundamental para a química da desinfeção da água e para os processos de fabrico de halogéneos.

Propriedades

Tipo
Single Replacement
Reversível
Não
Energia
Exotérmico
ΔH
-170,0 kJ/mol

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Frequently Asked Questions

What is the equation for Chlorine Displacing Iodine from Potassium Iodide?
The balanced equation is: Cl₂ + 2KI → 2KCl + I₂.
What type of reaction is Chlorine Displacing Iodine from Potassium Iodide?
Chlorine Displacing Iodine from Potassium Iodide is a single replacement reaction.
Is Chlorine Displacing Iodine from Potassium Iodide exothermic or endothermic?
Chlorine Displacing Iodine from Potassium Iodide is exothermic (releases energy). The enthalpy change (ΔH) is -170.0 kJ/mol.