Sulfur Dioxide, SO2 Industrial Gas
Sulfur Dioxide, SO2 Industrial Gas Product Description Sulfur dioxide (SO₂) is a colorless liquefied gas with a pungent odor. Dry gas is non-corrosive. Sulfur dioxide can be produced in a variety of ways, such as the combustion of sulfur or pyrite; or, as a by-product of smelter operations. It can also be prepared by the reaction of an acid with a metal sulfide, or by the direct action of sulfuric acid with a metal such as copper. CAS No. 7446-09-5 UN No. 1079 EINECS No. 231-195-2 Molecular weight 64.07 Appearance colorless, pungent odor Melting point -75.5 ℃ Boiling point -10 ℃ Density 2.9275 kg/m³ DOT Class 2.3 & 8 Label Toxic Gas, Corrosives Application: Sulfur dioxide is used to make sulfites, bisulfites and sulfuric acid. Other applications include: shielding gas in magnesium foundries; As bleach; disinfection and fumigation; As a component of ambient calibration gas; automotive exhaust monitoring; As a refrigerant; in laboratory studies of corrosion problems; remov