| 单词 | pyrophosphoric acid |
| 释义 | pyrophosphoric acid[ pahy-roh-fos-fawr-ik, -for-, pahy- ] / ˈpaɪ roʊ fɒsˈfɔr ɪk, -ˈfɒr-, ˌpaɪ- / noun Chemistry.a crystalline, water-soluble powder, H4P2O7, formed by the union of one molecule of phosphorus pentoxide with two molecules of water. Origin of pyrophosphoric acidFirst recorded in 1865–70; pyro- + phosphoric Words nearby pyrophosphoric acidpyrope, pyrophobia, pyrophoric, pyrophosphatase, pyrophosphate, pyrophosphoric acid, pyrophotometer, pyrophyllite, pyroracemic acid, pyrosis, pyrostat Dictionary.com UnabridgedBased on the Random House Unabridged Dictionary, © Random House, Inc. 2020 British Dictionary definitions for pyrophosphoric acidpyrophosphoric acid / (ˌpaɪrəʊfɒsˈfɒrɪk) / nouna crystalline soluble solid acid formed by the reaction between one molecule of phosphorus pentoxide and two water molecules. Formula: H 4 P 2 O 7See also polyphosphoric acid 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 Medical definitions for pyrophosphoric acidpyrophosphoric acid [ pī′rō-fŏs-fôr′ĭk ] n.A syrupy viscous liquid used as a catalyst, in organic chemical synthesis, and, in its salt forms, as medicines. The American Heritage® Stedman's Medical Dictionary Copyright © 2002, 2001, 1995 by Houghton Mifflin Company. Published by Houghton Mifflin Company. Scientific definitions for pyrophosphoric acidpyrophosphoric acid [ pī′rō-fŏs-fôr′ĭk ] A viscous liquid used as a catalyst and in the manufacture of organic chemicals. Chemical formula: H4P2O7. The American Heritage® Science Dictionary Copyright © 2011. Published by Houghton Mifflin Harcourt Publishing Company. All rights reserved. |
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