caustic soda

caustic 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. [1913 Webster]

{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. [1913 Webster]


The Collaborative International Dictionary of English. 2000.

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  • Caustic soda — Caustic Caus tic, Caustical Caus tic*al, a. [L. caustucs, Ge. ?, fr. ? to burn. Cf. {Calm}, {Ink}.] 1. Capable of destroying the texture of anything or eating away its substance by chemical action; burning; corrosive; searing. [1913 Webster] 2.… …   The Collaborative International Dictionary of English

  • caustic soda — n. SODIUM HYDROXIDE * * * Sodium hydroxide (NaOH), an inorganic compound. The alkalies called caustic soda and caustic potash (potassium hydroxide) are very important industrial chemicals, with uses in the manufacture of soaps, glass, and… …   Universalium

  • Caustic soda — Soda So da, 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}.] 1. (Chem.) (a) Sodium oxide or hydroxide. (b) Popularly, sodium carbonate or… …   The Collaborative International Dictionary of English

  • caustic soda — n SODIUM HYDROXIDE * * * see sodium hydroxide * * * sodium hydroxide …   Medical dictionary

  • caustic soda — ► NOUN ▪ sodium hydroxide …   English terms dictionary

  • caustic soda — n. SODIUM HYDROXIDE …   English World dictionary

  • caustic soda — noun a strongly alkaline caustic used in manufacturing soap and paper and aluminum and various sodium compounds • Syn: ↑sodium hydroxide • Hypernyms: ↑hydroxide, ↑hydrated oxide, ↑lye * * * noun [noncount] chiefly Brit : ↑lye * * * …   Useful english dictionary

  • caustic soda — natrio hidroksidas statusas T sritis chemija formulė NaOH atitikmenys: angl. caustic soda; sodium hydroxide rus. каустик; каустическая сода; натрий едкий; натрия гидроксид ryšiai: sinonimas – natrio šarmas sinonimas – kaustinė soda …   Chemijos terminų aiškinamasis žodynas

  • caustic soda — N UNCOUNT Caustic soda is a powerful chemical substance used to make strong soaps and clean drains …   English dictionary

  • caustic soda — noun Date: 1796 sodium hydroxide …   New Collegiate Dictionary

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