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にさんかいおう 二酸化硫黄
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Noun
1. sulfur dioxide; sulphur dioxide​
Wikipedia definition
2. Sulfur dioxide​Sulfur dioxide (also sulphur dioxide) is the chemical compound with the formula SO2. It is a poisonous gas with a pungent, irritating smell, that is released by volcanoes and in various industrial processes. Since coal and petroleum often contain sulfur compounds, their combustion generates sulfur dioxide unless the sulfur compounds are removed before burning the fuel. Further oxidation of SO2, usually in the presence of a catalyst such as NO2, forms H2SO4, and thus acid rain.
Read “Sulfur dioxide” on English Wikipedia
Read “二酸化硫黄” on Japanese Wikipedia
Read “Sulfur dioxide” on DBpedia
Other forms
二酸化いおう 【にさんかいおう】、二酸化イオウ 【にさんかイオウ】

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