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The Collaborative International Dictionary
sal soda

Sodium \So"di*um\, n. [NL., fr.E. soda.] (Chem.) A common metallic element of the alkali group, in nature always occuring combined, as in common salt, in albite, etc. It is isolated as a soft, waxy, white, unstable metal, so highly reactive that it combines violently with water, and to be preserved must be kept under petroleum or some similar liquid. Sodium is used combined in many salts, in the free state as a reducer, and as a means of obtaining other metals (as magnesium and aluminium) is an important commercial product. Symbol Na ( Natrium). Atomic weight 22.990. Specific gravity 0.97.

Sodium amalgam, an alloy of sodium and mercury, usually produced as a gray metallic crystalline substance, which is used as a reducing agent, and otherwise.

Sodium carbonate, a white crystalline substance, Na2CO3.10H2O, having a cooling alkaline taste, found in the ashes of many plants, and produced artifically in large quantities from common salt. It is used in making soap, glass, paper, etc., and as alkaline agent in many chemical industries. Called also sal soda, washing soda, or soda. Cf. Sodium bicarbonate, and Trona.

Sodium chloride, common, or table, salt, NaCl.

Sodium hydroxide, a white opaque brittle solid, NaOH, having a fibrous structure, produced by the action of quicklime, or of calcium hydrate (milk of lime), on sodium carbonate. It is a strong alkali, and is used in the manufacture of soap, in making wood pulp for paper, etc. Called also sodium hydrate, and caustic soda. By extension, a solution of sodium hydroxide.

Wiktionary
sal soda

n. sodium carbonate

WordNet
sal soda

n. a sodium salt of carbonic acid; used in making soap powders and glass and paper [syn: sodium carbonate, washing soda, soda ash, soda]

Usage examples of "sal soda".

She pickled the floors with lye, soaked the blankets in sal soda, complaining the whole time to herself, Men--dirty animals.

She pickled the floors with lye, soaked the blankets in sal soda, complaining the whole time to herself, “.

Cerberus was squat and muscular in her starched white nurse's uniform, her coarse gray hair cropped short, her cold eyes pinched into slits by pouches of fat, her sandpaper skin appearing to have been scrubbed daily with sal soda and a currycomb, her thin upper lip aggressively mustachioed.