单词 | polyphosphoric acid |
释义 | polyphosphoric acid/ (ˌpɒlɪfɒsˈfɒrɪk) / nounany one of a series of oxyacids of phosphorus with the general formula H n +2 P n O 3 n +1 . The first member is pyrophosphoric acid (n = 2) and the series includes the highly polymeric metaphosphoric acid. The higher acids exist in an equilibrium mixture a glassy or liquid mixture of orthophosphoric and polyphosphoric acids: used industrially as a dehydrating agent, catalyst, and oxidizing agent Words nearby polyphosphoric acidpolyphobia, polyphone, polyphonic, polyphonic prose, polyphony, polyphosphoric acid, polyphrasia, polyphyletic, polyphyodont, polypill, polyplastic Collins English Dictionary - Complete & Unabridged 2012 Digital Edition © William Collins Sons & Co. Ltd. 1979, 1986 © HarperCollins Publishers 1998, 2000, 2003, 2005, 2006, 2007, 2009, 2012 |
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