A corrosive solution of sulfur trioxide in sulfuric acid.

稀释的硫酸,用于蓄电池.

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Reduces coking and atomic oxygen thus lowering sulfur trioxide formation.

降低烟尘及氧原子,减少三氧化硫的排放.

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The title product is prepared by reacting sulfur trioxide with methyl ether.

其制备方法是由三氧化硫与甲醚反应生成硫酸二甲酯.

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It is feasible that fuming acid sulfonating technology is substituted by sulfur trioxide sulfonating technology.

用三氧化硫磺化工艺替代发烟硫酸磺化工艺是可行的.

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Advances in applications and technology for sulfonation using sulfur trioxide in manufacturing dye intermediates are reviewed.

综述了三氧化硫磺化在染料中间体生产中的应用和技术进展.

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