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Sulfur dioxide is an intermediate in the production of sulfuric acid, being converted to sulfur trioxide, and then to oleum, which is made into sulfuric acid. Sulfur dioxide for this purpose is made when sulfur combines with oxygen. The method of converting sulfur dioxide to sulfuric acid is called the contact process. Several million tons are ...
The two principal sulfur oxides are obtained by burning sulfur: S + O 2 → SO 2 (sulfur dioxide) 2 SO 2 + O 2 → 2 SO 3 (sulfur trioxide). Many other sulfur oxides are observed including the sulfur-rich oxides include sulfur monoxide, disulfur monoxide, disulfur dioxides, and higher oxides containing peroxo groups.
Sulfur dioxide is introduced with steam and nitrogen dioxide into large chambers lined with sheet lead where the gases are sprayed down with water and chamber acid (62–70% sulfuric acid). The sulfur dioxide and nitrogen dioxide dissolve, and over a period of approximately 30 minutes the sulfur dioxide is oxidized to sulfuric acid.
Sulfur dioxide (SO 2), a colorless gas with a pungent smell Sulfonyl group (R-SO 2-R), a functional group found primarily in sulfones, or a substituent; SO(2), special orthogonal group of degree 2 in mathematics; Oxygen saturation (SO 2), the concentration of oxygen dissolved in a medium
Sulphur dioxide (SO 2) absorbs strongly in the ultraviolet wavelengths and has low background concentrations in the atmosphere. These characteristics make sulphur dioxide a good target for volcanic gas monitoring. It can be detected by satellite-based instruments, which allow for global monitoring, and by ground-based instruments such as DOAS.
Sulfur trioxide (made by catalysis from sulfur dioxide) and sulfuric acid are similarly highly acidic and corrosive in the presence of water. Concentrated sulfuric acid is a strong dehydrating agent that can strip available water molecules and water components from sugar and organic tissue.
Sulphur dioxide is a colourless gas with a strong smell which is commonly released in coal burning and other refining or manufacturing processes. The gas can cause irritation to the throat, nausea ...
The contact process is a method of producing sulfuric acid in the high concentrations needed for industrial processes. Platinum was originally used as the catalyst for this reaction; however, because it is susceptible to reacting with arsenic impurities in the sulfur feedstock, vanadium(V) oxide (V 2 O 5) has since been preferred.