Formation of Hydrogen Sulfide

H2 + S → H2S

概述

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.

参与者

角色 物质 系数 状态
反应物 Hydrogen H 1 (g)
反应物 Sulfur S 1 (s)
产物 Hydrogen Sulfide H₂S 1 (g)

日常示例

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

工业重要性

硫化氢是天然气和石油精炼过程中的主要污染物，通过克劳斯法将H₂S转化为单质硫，全球每年从天然气中回收硫磺约7000万吨。

属性

类型
Synthesis
可逆
是
能量
放热
ΔH
-20.6 kJ/mol

相关反应

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.