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Dictionary


phosphor'ic ac'id



Chem.
any of three acids, orthophosphoric acid, H3PO4, metaphosphoric acid, HPO3, or pyrophosphoric acid, H4P2O7, derived from phosphorus pentoxide, P2O5, and various amounts of water.

Random House Unabridged Dictionary, Copyright © 1997, by Random House, Inc., on Infoplease.

phosphoricphosphorism
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