Sulfur Dioxide CAS 7446-09-5 Colorless Gas With A Sharp, Pungen Odor. Compressed Gas. May Cause Frostbite. Highly Irritating To Eyes/Skin/Respiratory Tract. May Cause Burns By Forming Sulfuric Acid On Contact With Moist Skin Or Mucous Membranes. Lung Damage May Occur. ...
When sulfur burns in air, it produces sulfur dioxide. In water, this gas produces sulfurous acid and sulfites; sulfites are antioxidants that inhibit growth of aerobic bacteria and a useful food additive in small amounts. At high concentrations these acids harm the lungs, eyes, or other tissues...