sodium phosphate

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noun Chemistry.

Also called monobasic sodium phosphate. a white, crystalline, slightly hygroscopic, water-soluble powder, NaH2PO4, used chiefly in dyeing and in electroplating.

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.

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.

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Origin of sodium phosphate

First recorded in 1870–75

Words nearby sodium phosphate

sodium nitrate, sodium nitrite, sodium pentothal, sodium perborate, sodium peroxide, sodium phosphate, sodium polysulfide, sodium propionate, sodium pump, sodium pyroborate, sodium salicylate

How to use sodium phosphate in a sentence

This result may be attained by adding sodium phosphate, or, better still, by the addition of ammonium oxalate in great excess.
Scientific American Supplement No. 299|Various
Sodium sulphate and sodium phosphate crystals lose water even when exposed under ordinary conditions to dry air.
A Textbook of Assaying: For the Use of Those Connected with Mines.|Cornelius Beringer and John Jacob Beringer
Titrate the boiling solution with the sodium phosphate till it ceases to give a brown colouration with potassium ferrocyanide.
A Textbook of Assaying: For the Use of Those Connected with Mines.|Cornelius Beringer and John Jacob Beringer
Magnesia is separated from the filtrate by adding sodium phosphate.
A Textbook of Assaying: For the Use of Those Connected with Mines.|Cornelius Beringer and John Jacob Beringer

The magnesia is precipitated from the filtrate by the addition of an excess of sodium phosphate and ammonia.
A Textbook of Assaying: For the Use of Those Connected with Mines.|Cornelius Beringer and John Jacob Beringer

British Dictionary definitions for sodium phosphate

sodium phosphate

noun

any sodium salt of any phosphoric acid, esp one of three salts of orthophosphoric acid having formulas NaH 2 PO 4 (monosodium dihydrogen orthophosphate), Na 2 HPO 4 (disodium monohydrogen orthophosphate), and Na 3 PO 4 (trisodium orthophosphate)

Collins English Dictionary - Complete & Unabridged 2012 Digital Edition © William Collins Sons & Co. Ltd. 1979, 1986 © HarperCollins Publishers 1998, 2000, 2003, 2005, 2006, 2007, 2009, 2012