Hydrogen Sulfide Oxidation by Chlorine

H2S + Cl2 → 2HCl + S

Visão geral

Chlorine oxidizes hydrogen sulfide to elemental sulfur while being reduced to hydrochloric acid. Sulfur is oxidized from -2 to 0. This reaction is used in removing hydrogen sulfide from natural gas (sweetening) and in treating hydrogen sulfide-containing wastewater.

Participantes

Papel Substância Coeficiente Estado
Reagente Hydrogen Sulfide H₂S 1 (g)
Reagente Chlorine Cl 1 (g)
Produto Sulfur S 1 (s)
Produto Hydrochloric Acid HCl 2 (g)

Exemplo do cotidiano

The rotten egg smell of hydrogen sulfide from sewers can be eliminated by chlorination, which oxidizes H₂S to odorless elemental sulfur.

Importância industrial

A remoção de H₂S por oxidação com cloro é utilizada no adoçamento do gás natural, no tratamento de águas residuais e na indústria petrolífera. Os gases com H₂S são obrigatoriamente tratados antes de serem libertados para a atmosfera.

Propriedades

Tipo
Redox
Reversível
Não
Energia
Exotérmico
ΔH
-186,0 kJ/mol

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Frequently Asked Questions

What is the equation for Hydrogen Sulfide Oxidation by Chlorine?
The balanced equation is: H₂S + Cl₂ → 2HCl + S.
What type of reaction is Hydrogen Sulfide Oxidation by Chlorine?
Hydrogen Sulfide Oxidation by Chlorine is a redox reaction.
Is Hydrogen Sulfide Oxidation by Chlorine exothermic or endothermic?
Hydrogen Sulfide Oxidation by Chlorine is exothermic (releases energy). The enthalpy change (ΔH) is -186.0 kJ/mol.