Sulfur dioxide (IUPAC-recommended spelling) or sulphur dioxide (traditional Commonwealth English) is the chemical compound with the formula S O 2. It is a colorless gas with a pungent smell that is responsible for the odor of burnt matches.

二氧化硫 （英語： sulphur dioxide , sulfur dioxide）是最常见的 硫氧化物， 化学式 是SO 2。 无色气体，有强烈刺激性气味。 大气 主要污染物之一。 火山爆发 时会喷出该气体，在许多工业过程中也会产生二氧化硫。 由于 煤 和 石油 通常都含有硫化合物，因此 燃烧 时会生成二氧化硫。 當二氧化硫溶於水中，會形成 亞硫酸 （酸雨 的主要成分）。 若把SO 2 进一步氧化，通常在催化剂如 二氧化氮 的存在下，便会生成 硫酸。 [6] 这就是对使用这些燃料作为能源的环境效果的担心的 …

2025年1月10日 · 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.

2025年3月21日 · 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 (SO2) was previously regarded as a toxic gas in atmospheric pollutants. But it has been found to be endogenously generated from metabolism of sulfur-containing amino acids in mammals through transamination by aspartate aminotransferase (AAT). SO2 could be produced in cardiovascular tissues catalyzed by its synthase AAT.

Colorless gas with a characteristic, irritating, pungent odor. [Note: A liquid below 14°F. Shipped as a liquefied compressed gas.] Powdered alkali metals (such as sodium & potassium), water, ammonia, zinc, aluminum, brass, copper [Note: Reacts with water to …

Sulfur 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 …

2018年5月23日 · Sulfur dioxide, with chemical formula SO 2, is a colorless gas with an irritating, choking odor. Normally a gas, sulfur dioxide has a density of 2.551 g/L and a solubility in water of 9.4 g per 100 mL (at 25 ° C). It has a melting point of − 98.3 ° F (− 72.4 ° C) and a boiling point of 14 ° F (− 10 ° C).

Sulfur dioxide is a colorless gas with a suffocating odor that is formed during the combustion of sulfur-containing fuels and the smelting of sulfide ores. It is a primary air pollutant and can be very irritating to the eyes and respiratory tract.

Gas Phase Heat Capacity (Shomate Equation) References; Notes; Other data available: Gas phase thermochemistry data; Phase change data; Reaction thermochemistry data: reactions 1 to 50, reactions 51 to 100, reactions 101 to 102; Henry's Law data; Gas phase ion energetics data; Ion clustering data; IR Spectrum; Mass spectrum (electron ionization ...