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4 giorni fa · Sulfur (also spelled sulphur in British English) is a chemical element; it has symbol S and atomic number 16. It is abundant, multivalent and nonmetallic. Under normal conditions, sulfur atoms form cyclic octatomic molecules with the chemical formula S 8. Elemental sulfur is a bright yellow, crystalline solid at room temperature.
4 giorni fa · chemical compound. Also known as: hydrogen sulfate, oil of vitriol, sulphuric acid. Written and fact-checked by. The Editors of Encyclopaedia Britannica.
- The Editors of Encyclopaedia Britannica
4 giorni fa · Sulfuric acid ( American spelling and the preferred IUPAC name) or sulphuric acid ( Commonwealth spelling ), known in antiquity as oil of vitriol, is a mineral acid composed of the elements sulfur, oxygen, and hydrogen, with the molecular formula H2SO4. It is a colorless, odorless, and viscous liquid that is miscible with water.
2 giorni fa · Sulfur dioxide is the product of the burning of sulfur or of burning materials that contain sulfur: 1⁄8 S8 + O2 → SO2, ΔH = −297 kJ/mol. To aid combustion, liquified sulfur (140–150 °C, 284-302 °F) is sprayed through an atomizing nozzle to generate fine drops of sulfur with a large surface area.
3 giorni fa · The sulphate ion in the acid forms a white precipitate with barium ions in the solution. The nitric(V) acid itself is reduced to red brown nitrogen(IV) oxide and water. S(s) + 6HNO 3 (aq) H 2 SO 4 (aq) + 6NO 2 (g) + 2H 2 O(l) Concentrated sulphuric(VI) acid oxidises sulphur to sulphur(IV) oxide while the acid is reduced to sulphur(IV ...
14 mag 2024 · Learn about the causes of sulphur or 'rotten egg' burps and how to alleviate the symptoms. Discover the role of food, infections, and chronic digestive conditions. Find tips on lifestyle changes and treatments to address sulphurous burps.
4 giorni fa · Sulphur was an increasingly important, raw material of industry and was used in the manufacture of matches, GUNPOWDER, and sulphuric acid [OIL OF VITRIOL], in bleaching, and as a disinfectant. In a refined state, for example, as FLOWERS OF SULPHUR it was used medicinally, especially for skin diseases.
