Sulfur oxide - Wikiwand

Sulfur oxide Sulfur oxides (SOx) are a group of chemical compounds formed by the combination of sulfur and oxygen. The most common SOx are sulfur dioxide (SO2) and sulfur trioxide (SO3). SOx are produced naturally through volcanic activity and are also released into the atmosphere from human activities like burning fossil fuels and industrial processes.

Sulfur oxide (SO_x) refers to one or more of the following:

Lower sulfur oxides (S_nO, S₇O₂ and S₆O₂)
Sulfur monoxide (SO) and its dimer, Disulfur dioxide (S₂O₂)
Sulfur dioxide (SO₂)
Sulfur trioxide (SO₃)
Higher sulfur oxides (SO₃ and SO₄ and polymeric condensates of them)
Disulfur monoxide (S₂O)

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