Formation of Hydrogen Sulfide

H2 + S → H2S

Aperçu

Hydrogen gas reacts with sulfur to form hydrogen sulfide, the gas responsible for the characteristic smell of rotten eggs. This mildly exothermic reaction occurs at elevated temperatures. Hydrogen sulfide is highly toxic even at low concentrations.

Participants

Rôle Substance Coefficient État
Réactif Hydrogen H 1 (g)
Réactif Sulfur S 1 (s)
Produit Hydrogen Sulfide H₂S 1 (g)

Exemple du quotidien

The rotten egg smell near hot springs and volcanic areas comes from hydrogen sulfide produced by similar reactions underground.

Importance industrielle

Hydrogen sulfide is an important industrial chemical used in the production of sulfur and sulfuric acid. It is also a serious workplace hazard in petroleum refining and mining.

Propriétés

Type
Synthesis
Réversible
Oui
Énergie
Exothermique
ΔH
-20,6 kJ/mol

Réactions associées

Formation of Calcium Hydroxide Formation of Carbon Monoxide Formation of Nitrogen Dioxide Formation of Potassium Chloride Formation of Sodium Bicarbonate Formation of Sodium Peroxide Formation of Silicon Dioxide Formation of Tungsten Carbide Formation of Copper(II) Sulfide Fischer-Tropsch Synthesis (General)

Frequently Asked Questions

What is the equation for Formation of Hydrogen Sulfide?
The balanced equation is: H₂ + S → H₂S.
What type of reaction is Formation of Hydrogen Sulfide?
Formation of Hydrogen Sulfide is a synthesis reaction. It is reversible under certain conditions.
Is Formation of Hydrogen Sulfide exothermic or endothermic?
Formation of Hydrogen Sulfide is exothermic (releases energy). The enthalpy change (ΔH) is -20.6 kJ/mol.