Formation of Hydrogen Sulfide

H2 + S → H2S

Descripción general

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.

Participantes

Rol Sustancia Coeficiente Estado
Reactivo Hydrogen H 1 (g)
Reactivo Sulfur S 1 (s)
Producto Hydrogen Sulfide H₂S 1 (g)

Ejemplo cotidiano

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

Importancia industrial

El sulfuro de hidrógeno es un producto químico industrial importante utilizado en la producción de azufre y ácido sulfúrico. También es un contaminante significativo en la refinería del petróleo.

Propiedades

Tipo
Synthesis
Reversible
Sí
Energía
Exotérmico
ΔH
-20,6 kJ/mol

Reacciones relacionadas

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.