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potassium diphosphate

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noun Chemistry.
  1. See under potassium phosphate.

potassium phosphate

noun Chemistry.
  1. any of the three orthophosphates of potassium (potassium monophosphate (K2HPO4), potassium diphosphate (KH2PO4), and tripotassium phosphate (K3PO4)).

Origin of potassium phosphate

First recorded in 1880–85
Dictionary.com Unabridged Based on the Random House Unabridged Dictionary, © Random House, Inc. 2018