Hydrogen Sulfide Oxidation by Chlorine

H2S + Cl2 → 2HCl + S

Aperçu

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.

Participants

Rôle Substance Coefficient État
Réactif Hydrogen Sulfide H₂S 1 (g)
Réactif Chlorine Cl 1 (g)
Produit Sulfur S 1 (s)
Produit Hydrochloric Acid HCl 2 (g)

Exemple du quotidien

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

Importance industrielle

H₂S removal by chlorine oxidation is used in natural gas sweetening, wastewater treatment, and in the petroleum refining industry.

Propriétés

Type
Redox
Réversible
Non
Énergie
Exothermique
ΔH
-186,0 kJ/mol

Réactions associées

Iron(II) to Iron(III) Oxidation by Oxygen Bleaching with Sodium Hypochlorite Copper Reduction of Silver Ion Aqua Regia Dissolving Gold Cerium(IV) Reduction by Iron(II) Chlorine Oxidation of Bromide Copper Oxidation by Nitric Acid Hypochlorite Oxidation of Hydrogen Peroxide Hydrogen Peroxide as Oxidizing Agent (Acidic) Displacement of Hydrogen from Acid by Magnesium

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.