| 单词 | phosphorus pentoxide |
| 释义 | phosphorus pentoxide[ pen-tok-sahyd, -sid ] / pɛnˈtɒk saɪd, -sɪd / noun Chemistry.a white, deliquescent, crystalline powder, P2O5, that, depending upon the amount of water it absorbs, forms orthophosphoric acid, metaphosphoric acid, or pyrophosphoric acid, produced by the burning of phosphorus in dry air: used in the preparation of phosphoric acids, as a drying and dehydrating agent, and in organic synthesis. Also called phosphoric anhydride. Words nearby phosphorus pentoxidephosphoroscope, phosphorous, phosphorous acid, phosphorus, phosphorus 32, phosphorus pentoxide, phosphorus sesquisulfide, phosphorus trichloride, phosphorylase, phosphorylase phosphatase, phosphorylase-rupturing enzyme Dictionary.com UnabridgedBased on the Random House Unabridged Dictionary, © Random House, Inc. 2020 British Dictionary definitions for phosphorus pentoxidephosphorus pentoxide nouna white odourless solid produced when phosphorus burns: has a strong affinity for water with which it forms phosphoric acids. Formula: P 2 O 5 (commonly existing as the dimer P 4 O 10)Also called: phosphoric anhydride 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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