Dictionary
so'dium bicar'bonate
Chem., Pharm.
a white, crystalline, water-soluble solid, in powder or granules, NaHCO
3, usually prepared by the reaction of soda ash with carbon dioxide or obtained from the intermediate product of the Solvay process by purification: used chiefly in the manufacture of sodium salts, baking powder, and beverages, as a laboratory reagent, as a fire extinguisher, and in medicine as an antacid. Also called
bicarbonate of soda, baking soda, so'dium ac'id car'bonate. Random House Unabridged Dictionary, Copyright © 1997, by Random House, Inc., on Infoplease.