| 单词 |
sulphur trioxide |
| 释义 |
sulphur trioxide
sulphur trioxide n (Elements & Compounds) 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 EncyclopediaSeeSulfur TrioxideMedicalSeesulfur trioxide |
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