- sodium phosphate n1) a phosphate NaH2PO4 of sodium containing one sodium atom per molecule that with the phosphate containing two sodium atoms per molecule constitutes the principal buffer system of the urine called also monobasic sodium phosphate, sodium acid phosphate, sodium dihydrogen phosphate2) a phosphate Na2HPO4 of sodium containing two sodium atoms per molecule that is used in medicine as a laxative and antacid called also dibasic sodium phosphate3) a phosphate Na3PO4 of sodium containing three sodium atoms per molecule that is used chiefly in cleaning compositions and in water treatment
* * *any of various compounds of sodium and phosphoric acid; usually used to denote specifically dibasic s. phosphate.
Medical dictionary. 2011.
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sodium phosphate — n. any of various clear, crystalline sodium salts of phosphoric acid, widely used in industry … English World dictionary
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sodium phosphate — Chem. 1. Also called monobasic sodium phosphate. a white, crystalline, slightly hygroscopic, water soluble powder, NaH2PO4, used chiefly in dyeing and in electroplating. 2. Also called dibasic sodium phosphate, disodium phosphate. a water soluble … Universalium
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monobasic sodium phosphate — n SODIUM PHOSPHATE (1) * * * [USP] the monohydrate, dihydrate, or anhydrous monosodium salt of phosphoric acid; used in buffer solutions. Used alone or in combination with other phosphate compounds, it is given intravenously as an electrolyte… … Medical dictionary