Formation of Hydrogen Sulfide

H2 + S → H2S

概要

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.

参加者

役割 物質 係数 状態
反応物 Hydrogen H 1 (g)
反応物 Sulfur S 1 (s)
生成物 Hydrogen Sulfide H₂S 1 (g)

日常の例

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

産業上の重要性

硫化水素は硫黄と硫酸製造の工業中間体であり、チオール・チオフェンなど有機硫黄化合物の合成にも使われる。天然ガス中のH₂Sはクラウス法で元素硫黄に変換される。

特性

タイプ
Synthesis
可逆的
はい
エネルギー
発熱性
ΔH
-20.6 kJ/mol

関連する反応

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.