Formation of Sulfur Dioxide

S + O2 → SO2

概要

Sulfur burns in oxygen with a characteristic blue flame to produce sulfur dioxide, a pungent-smelling gas. This reaction is the first step in the industrial production of sulfuric acid. Sulfur dioxide is also a significant atmospheric pollutant.

参加者

役割 物質 係数 状態
反応物 Sulfur S 1 (s)
反応物 Oxygen O 1 (g)
生成物 Sulfur Dioxide SO₂ 1 (g)

日常の例

The smell of a struck match comes partly from sulfur dioxide produced as the match head burns.

産業上の重要性

この反応は硫酸製造（接触法）の第一工程である。SO₂排出は酸性雨の主要原因であり、脱硫技術（石灰石-石膏法など）の開発は現代の環境工学の重要課題である。

特性

タイプ
Synthesis
可逆的
いいえ
エネルギー
発熱性
ΔH
-296.8 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 Sulfur Dioxide?
The balanced equation is: S + O₂ → SO₂.
What type of reaction is Formation of Sulfur Dioxide?
Formation of Sulfur Dioxide is a synthesis reaction.
Is Formation of Sulfur Dioxide exothermic or endothermic?
Formation of Sulfur Dioxide is exothermic (releases energy). The enthalpy change (ΔH) is -296.8 kJ/mol.