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单词 phosphorous acid
释义

WordReference Random House Unabridged Dictionary of American English © 2024
phosphorous acid, [Chem.]
  1. Chemistrya colorless, crystalline, water-soluble acid of phosphorus, H3PO3, from which phosphites are derived.
  • 1785–95

Collins Concise English Dictionary © HarperCollins Publishers::
phosphorous acid n
  1. Also called: orthophosphorous acid a white or yellowish hygroscopic crystalline dibasic acid. Formula: H3PO3
    Systematic name: phosphoric acid
  2. any oxyacid of phosphorus containing less oxygen than the corresponding phosphoric acid
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