Sulfur dioxide - Wikipedia
WebSulfur dioxide (IUPAC-recommended spelling) or sulphur dioxide (traditional Commonwealth English) is the chemical compound with the formula S O 2. It is a toxic gas responsible for the odor of burnt matches. It is released naturally by volcanic activity and is produced as a by-product of copper extraction and the burning of sulfur-bearing ...
Sulphur dioxide in foods and beverages: its use as a ... - PubMed
WebAbstract. Sulphur dioxide is widely used in the food and drinks industries for its properties as a preservative and antioxidant. Whilst harmless to healthy persons when used in recommended concentrations, it can induce asthma when inhaled or ingested by sensitive subjects, even in high dilution.
Sulfur dioxide | Definition, Chemistry, Sources, Air ... - Britannica
WebApr 28, 2009 · sulfur dioxide, (SO 2 ), inorganic compound, a heavy, colorless, poisonous gas. It is produced in huge quantities in intermediate steps of sulfuric acid manufacture. Sulfur dioxide has a pungent, irritating odor, familiar as the smell of a just-struck match.
Sulfur Dioxide Basics | US EPA
WebLast updated on January 31, 2024. Sulfur dioxide (SO2) is one of a group of highly reactive gasses known as “oxides of sulfur," and are emitted into the air as result of fossil fuel combustion and other industrial processes.
Sulfur Dioxide | American Lung Association
WebOct 26, 2023 · What Is Sulfur Dioxide? Sulfur dioxide (SO 2) is a gaseous air pollutant composed of sulfur and oxygen. SO 2 forms when sulfur-containing fuel such as coal, petroleum oil, or diesel is burned. Sulfur dioxide gas can also change chemically into sulfate particles in the atmosphere, a major part of fine particle pollution, which can blow …
Sulfur Dioxide | NIOSH | CDC
WebSulfur dioxide (SO₂) is a colorless gas with a characteristic, irritating, pungent odor. Exposure to sulfur dioxide may cause irritation to the eyes, nose, and throat. Symptoms include: nasal mucus, choking, cough, and reflex bronchi constriction, and when liquid: frostbite Workers may be harmed from exposure to sulfur dioxide.
Sulfur Dioxide | Earthdata
WebNov 30, 2022 · Sulfur dioxide (SO2) is a non-inflammable colorless gas. SO2 is usually oxidized by ozone and hydrogen peroxide to form sulfur trioxide, a secondary pollutant that is extremely soluble in water. Droplets of sulfuric acid (acid rain) are formed when sulfur oxides are present in the atmosphere.
Sulphur Dioxide (SO2) - Uses, Structure, Preparation & Properties …
WebSulfur dioxide, SO2, is a colourless gas or liquid that has a strong, odorous smell. It is derived from the burning of fossil fuels (coal and oil) and the smelting of sulphur-containing mineral ores (aluminium, copper, zinc, lead and iron). The sulfur dioxide quickly dissolves to form sulfuric acid in water. Q3.
Sulfur Dioxide | ToxFAQs™ | ATSDR - Centers for Disease Control …
WebSulfur dioxide is a colorless gas with a pungent odor. It is a liquid when under pressure, and it dissolves in water very easily. Sulfur dioxide in the air comes mainly from activities such as the burning of coal and oil at power plants or from copper smelting. In nature, sulfur dioxide can be released to the air from volcanic eruptions.
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