英语词汇“sulphur trioxide”的英英意思、用法、释义、翻译、读音、例句、短语、词组-英语词典

单词	sulphur trioxide
释义	Collins Concise English Dictionary © HarperCollins Publishers:: sulphur trioxide n a white corrosive substance existing in three crystalline forms of which the stable (alpha-) form is usually obtained as silky needles. It is produced by the oxidation of sulphur dioxide, and is used in the sulphonation of organic compounds. Formula: SO₃ Systematic name: sulphur(VI) oxide
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