Hydrogen Sulfide Oxidation by Chlorine

H2S + Cl2 → 2HCl + S

Descripción general

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

Rol Sustancia Coeficiente Estado
Reactivo Hydrogen Sulfide H₂S 1 (g)
Reactivo Chlorine Cl 1 (g)
Producto Sulfur S 1 (s)
Producto Hydrochloric Acid HCl 2 (g)

Ejemplo cotidiano

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

Importancia industrial

La eliminación del H₂S mediante oxidación con cloro se usa en el endulzamiento del gas natural, el tratamiento de aguas residuales y en el refino del petróleo para prevenir la corrosión.

Propiedades

Tipo
Redox
Reversible
No
Energía
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.