svaveldioxid

Svaveldioxid is a chemical compound with the formula SO2. It is a colorless gas with a pungent, choking odor. Svaveldioxid occurs naturally in the environment as a product of volcanic activity and in the atmosphere through the burning of fossil fuels. Industrially, it is produced by the combustion of sulfur or sulfur-containing compounds.

Svaveldioxid is a significant air pollutant and a precursor to acid rain. When released into the atmosphere, it reacts with water, oxygen, and other chemicals to form sulfuric acid and sulfurous acid, which then fall to the earth as acid rain. Acid rain can damage forests, lakes, rivers, and buildings. It also contributes to respiratory problems in humans and animals.

In industrial applications, svaveldioxid is used in the production of sulfuric acid, which is a key component in many manufacturing processes, including fertilizer production, petroleum refining, and metal processing. It also serves as a bleaching agent, a disinfectant, and a food preservative. However, due to its harmful effects on health and the environment, its use in many applications is restricted or regulated.