pyrophosphoric acid

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Related to pyrophosphoric acid: pyrophosphate, hypophosphoric acid

py·ro·phos·phor·ic acid

A glacial or syrupy viscous liquid, H4P2O7, used as a catalyst and in organic chemical manufacture.
American Heritage® Dictionary of the English Language, Fifth Edition. Copyright © 2016 by Houghton Mifflin Harcourt Publishing Company. Published by Houghton Mifflin Harcourt Publishing Company. All rights reserved.

pyrophosphoric acid

(Elements & Compounds) a crystalline soluble solid acid formed by the reaction between one molecule of phosphorus pentoxide and two water molecules. Formula: H4P2O7. See also polyphosphoric acid
Collins English Dictionary – Complete and Unabridged, 12th Edition 2014 © HarperCollins Publishers 1991, 1994, 1998, 2000, 2003, 2006, 2007, 2009, 2011, 2014

py′ro•phos•phor′ic ac′id

(ˈpaɪ roʊ fɒsˈfɔr ɪk, -ˈfɒr-, ˌpaɪ-)
a crystalline, water-soluble powder, H4P2O7, used as a catalyst.
Random House Kernerman Webster's College Dictionary, © 2010 K Dictionaries Ltd. Copyright 2005, 1997, 1991 by Random House, Inc. All rights reserved.
ThesaurusAntonymsRelated WordsSynonymsLegend:
Noun1.pyrophosphoric acid - a solid acid formed by reactions of orthophosphoric acid
polyphosphoric acid - a series of oxyacids of phosphorus
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References in periodicals archive ?
Phosphoric acid changes to pyrophosphoric acid above 180[degrees]C and then detached from the main chain.
The pyrophosphoric acid produced during this second PCR is later detected electrochemically.