Definition of pyrophosphoric acid in English:

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pyrophosphoric acid

Pronunciation: /ˌpʌɪrə(ʊ)fɒsˈfɒrɪk/

noun

[mass noun] Chemistry
A glassy solid obtained by heating phosphoric acid.
  • A tetrabasic acid; chemical formula: H4P2O7
Example sentences
  • Pyrophosphoric acid is colorless, odorless, hygroscopic and is soluble in water.
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