sulfur dioxide

Questions

What does sulfur dioxide mean?

A toxic gas, of molecular formula SO₂ that is found in the emissions of volcanos and those of burning coal or petroleum; dissolves in water to form sulfurous acid and, in the presence of oxygen, sulfuric acid, and is thus responsible for acid rain.

How to pronounce sulfur dioxide

1. Open the pronunciation page — Open the Speakur entry for “sulfur dioxide”.
2. Read the phonetic spelling — Read the IPA spelling () so you know which sounds to aim for.
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