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disodium phosphate

 - 3 dictionary results

di⋅so⋅di⋅um phos⋅phate

[dahy-soh-dee-uhm]
–noun Chemistry.
sodium phosphate (def. 2).

Origin:
di- 1 + sodium

sodium phosphate

–noun Chemistry.
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 compound that in its anhydrous form, Na2HPO4, occurring as a white, crystalline, hygroscopic powder, is used chiefly in the manufacture of ceramic glazes, enamels, baking powder, and cheeses, and that in its hydrated form, Na2HPO4·xH2O, occurring as clear colorless crystals, is used chiefly in the manufacture of dyes, fertilizers, detergents, and pharmaceuticals.
3. Also called tribasic sodium phosphate, trisodium phosphate, TSP. a colorless water-soluble compound, Na3PO4·12H2O, occurring as crystals: used chiefly in the manufacture of water-softening agents, detergents, paper, and textiles.

Origin:
1870–75
Dictionary.com Unabridged
Based on the Random House Dictionary, © Random House, Inc. 2009.
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Medical Dictionary

Main Entry: sodium phosphate
Function: noun
1 : a phosphate NaH2PO4 of sodium containing one sodium atom per molecule that with thephosphate containing two sodium atoms per molecule constitutes the principal buffer system of the urine called also monobasic sodium phosphate, sodium acid phosphate, sodium dihydrogenphosphate
2 : a phosphate Na2HPO4 of sodium containing two sodium atoms per molecule that is used in medicine as a laxative and antacid called alsodibasic sodium phosphate
3 : a phosphate Na3PO4 of sodium containing three sodium atoms per molecule that is used chiefly in cleaning compositions andin water treatment
Merriam-Webster's Medical Dictionary, © 2002 Merriam-Webster, Inc.
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