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a sodium salt of carbonic acid; used in making soap powders and glass and paper

a sodium salt of carbonic acid; used in making soap powders and glass and paper

Popularly, sodium carbonate or bicarbonate.

A white substance formed of the alkali sodium in combination with carbonate, as washing soda; with bicarbonate, as cooking soda; or with hydrogen and oxygen, as caustic soda or sodium hydroxide.

Carbonate of sodium.

Oxide of the metal sodium.

An alkali, the oxide of sodium.

A white alkaline compound, the basis of salt.

Soda water.

An Arabic word. Protox'ide of sodium, (F.) Soude, is obtained by adding caustic lime to a solution of carbonate of soda. The soda in solution may be obtained by evaporation as hydrate of soda. Its action is like that of potassa; but it is not officinal. Soda impu’ra, Barilla, Barig'lia, Baril'lor, Soda Hispan'ica, Ana'tron, Natron, Ana'ton, Nitrum Antiquo'rum, Kelp, Aphroni'trum, Sal alkali’nus fixus fos'silis, Car’bonas Sodce im'purus, Subcar'bonas Sodae impu'ra, Anachron. The mineral alkali is obtained from several sources; - naturally, in Egypt: artificially, from the incineration of marine plants; and from the decomposition of sulphate of soda, &c. It is principally, however, derived from plants growing on the sea-coast; - as the Salso’la sati'va, S. soda, S. tragus, Salicor'nia herba'cea, Salicornia Arub'ica, &c. The Barilla ashes are from the ashes of the Salicor'nia Europae'a: the Kelp, Soude de Varecq, from the Fucus vesiculo'sus and other varieties ;-the Turkey Barilla, Roquette, Cendre du Levant, Rochet'ta Alexandri'na, from the Mesembryan'themum Cop’ticum; - the Al'icant Barilla, Soda Alicanti’na seu Alonen'sis, from the Mesembryan'themum nodiflo'rum ;-and the Carthage’na Barilla, from the Salicor'nia and Salso’la. Impure subcarbonate of soda, (F.) Soude du commerce, consists of subcarbonate of soda, potash, chloride of sodium, clay and other earthy substances. It is chiefly used for preparing the pure subcarbonate.

Cardialgia, Cephalalgia, Pyrosis.

Sodium hydrate, NaOH.; also sodium carbonate or bicarbonate.

Caustic s., sodium hydroxid; a hard, white or grayish, opaque solid, of fibrous texture, melting just below a red heat, deliquescent in moist air, efflorescent in dry air, and very soluble in alcohol, less soluble in water. It is a strongly alkaline base, of very acrid and caustic taste. From its great affinity for water, it acts as a caustic, but is less diffusive in its action than caustic potash.

A name used by the laity for various salts of sodium (especially sodium carbonate or bicarbonate). The term is now usually restricted to the salts of sodium occurring native or used in commerce. When used without qualification, caustic s. is generally understood.

n. [Greek, Dutch] The protoxide of the metal sodium. Carbonate of soda, a salt compounded of carbonic acid and soda, chiefly obtained by the conversion of sea-water into sulphate of soda.