New Collegiate Dictionary. 2001.
pyrophosphoric acid — [pī΄rə fäs fôr′ik] n. [ PYRO + PHOSPHORIC] a viscous liquid acid, H4P2O7, which crystallizes when left standing at ordinary temperatures and is easily converted to orthophosphoric acid upon dilution with water … English World dictionary
Pyrophosphoric acid — Chembox new ImageFile = Pyrophosphoric acid 2D.png ImageName = Chemical structure of pyrophosphoric acid ImageFile1 = Pyrophosphoric acid 3D vdW.png ImageName1 = 3D model of pyrophosphoric acid IUPACName = diphosphoric acid μ oxido… … Wikipedia
pyrophosphoric acid — An anhydride of phosphoric acid obtained by heating phosphoric acid to 213°C; it forms pyrophosphates with bases, and its esters are important in energy metabolism and in biosynthesis. * * * py·ro·phos·pho·ric acid fäs .fȯr ik , .fär ; .fäs f(ə… … Medical dictionary
pyrophosphoric acid — noun a) A syrupy liquid formed by the dehydration of phosphoric acid; its salts, the pyrophosphates, are used in medicine. b) The acid formed by removing a molecule of water from two molecules of phosphoric acid, HPO; this reaction slowly reverse … Wiktionary
pyrophosphoric acid — noun a solid acid formed by reactions of orthophosphoric acid • Hypernyms: ↑polyphosphoric acid … Useful english dictionary
pyrophosphoric acid — /ˌpaɪroʊfɒsfɒrɪk ˈæsəd/ (say .puyrohfosforik asuhd) noun the acid H4P2O7, formed by the union of one molecule of phosphorus pentoxide with two molecules of water. It is a water soluble, crystalline powder …
pyrophosphoric acid — /puy roh fos fawr ik, for , puy /, Chem. a crystalline, water soluble powder, H4P2O7, formed by the union of one molecule of phosphorus pentoxide with two molecules of water. [1865 70; PYRO + PHOSPHORIC] * * * … Universalium
pyrophosphoric acid — py′ro•phos•phor′ic ac′id [[t]ˈpaɪ roʊ fɒsˈfɔr ɪk, ˈfɒr , ˌpaɪ [/t]] n. chem. a crystalline, water soluble powder, H4P2O7, used as a catalyst • Etymology: 1865–70 … From formal English to slang
pyrophosphoric — adjective of, or relating to pyrophosphoric acid or its derivatives … Wiktionary
pyrophosphoric — adj. pertaining to pyrophosphoric acid (Chemistry) … English contemporary dictionary
