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(), n.[It., soda, in OIt., ashes used in making glass, fr. L. solida, fem. of solidus solid; solida having probably been a name of glasswort. See Solid.] (Chem.) (a) Sodium oxide or hydroxide. (b) Popularly, sodium carbonate or bicarbonate. Caustic soda, sodium hydroxide. Cooking soda, sodium bicarbonate. [Colloq.] Sal soda. See Sodium carbonate, under Sodium. Soda alum (Min.), a mineral consisting of the hydrous sulphate of alumina and soda. Soda ash, crude sodium carbonate; -- so called because formerly obtained from the ashes of sea plants and certain other plants, as saltwort (Salsola). See under Sodium. Soda fountain, an apparatus for drawing soda water, fitted with delivery tube, faucets, etc. Soda lye, a lye consisting essentially of a solution of sodium hydroxide, used in soap making. Soda niter. See Nitratine. Soda salts, salts having sodium for the base; specifically, sodium sulphate or Glauber's salts. Soda waste, the waste material, consisting chiefly of calcium h スポンサード リンク
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