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Sodium carbonate   /sˈoʊdiəm kˈɑrbənˌeɪt/   Listen
noun
Sodium  n.  (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.






Collaborative International Dictionary of English 0.48








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"Sodium carbonate" Quotes from Famous Books



... potato is strongly acid to phenolphthalein. If, therefore, the potatoes are required to approximate 10, as for the cultivation of some of the vibrios, the cylinders should be soaked in a 1 per cent. solution of sodium carbonate for ...
— The Elements of Bacteriological Technique • John William Henry Eyre

... acids with ammoniacal blood gelatine and sodium carbonate, the ingredients of the bile also, develop into a peculiar soap. In the economy of the body the bile acts as a soap. When it is discharged into the duodenum, it changes the fats into so fine an emulsion (chyle) that the microscopically fine drops ...
— Valere Aude - Dare to Be Healthy, Or, The Light of Physical Regeneration • Louis Dechmann

... important Water Softening Plant, giving Power required, Weight, Space Occupied, Out-put and Approximate Cost. Raw Materials and Detection of Adulterants. — Analysis and Valuation of the more important Chemicals used in Paper Making, including Lime, Caustic Soda, Sodium Carbonate, Mineral Acids, Bleach Antichlor, Alum, Rosin and Rosin Size, Glue Gelatin and Casein, Starch, China Clay, Blanc Fixe, Satin White and other Loading Materials, Mineral Colours and Aniline Dyes. Manufacturing Operations. — Rags and the Chemical Control of Rag Boiling — Esparto ...
— The Dyeing of Woollen Fabrics • Franklin Beech

... acid, dilute nitric acid, strong hydrochloric acid, and a mixture of hydrochloric and nitric acids, first in the cold and then with warming. Certain substances are insoluble in all these reagents, and other methods, such as the fusion with sodium carbonate and potassium nitrate, and subsequent treatment with an acid, must be employed. Some of these insoluble compounds can be detected by their colour and particular reactions. For further information on this subject, we refer the readers ...
— Encyclopaedia Britannica, 11th Edition, Volume 6, Slice 1 - "Chtelet" to "Chicago" • Various

... per cent. of pure gas, the principal diluting gas being, of course, nitrogen. This kiln gas is drawn from the kiln by a blowing engine, and is first cooled in two large receivers. It is then forced into the solution of sodium carbonate in the absorption tower, 65 ft. high by 6 ft. diameter, filled with the liquor. The tower has many diaphragms and perforated "mushrooms," to cause a proper dispersion of the gases as they ascend through the liquor. The strength of liquor found best adapted for the work is equal ...
— Scientific American Supplement, No. 611, September 17, 1887 • Various



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