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A carbonate in which but half the hydrogen of the acid is replaced by a positive element or radical, thus making the proportion of the acid to the positive or basic portion twice what it is in the normal carbonates; an acid carbonate; -- sometimes called supercarbonate.

An aqueous solution of carbolic acid, borax, sodium bicarbonate, and glycerin, used as a spray in diseases of the nose and throat.

Having an excessive proportion of carbonic acid; -- said of bicarbonates or acid carbonates. [Written also hypercarburetted.]

a white crystalline substance having an alkaline taste and reaction, consisting of sodium bicarbonate (see under Sodium.) It is lagerly used in cooking, with sour milk (lactic acid) or cream of tartar as a substitute for yeast. It is also an ingridient of most baking powders, and is used in the preparation of effervesc…

g salts, consisting of two separate powders, one of which contains forty grains of sodium bicarbonate mixed with two drachms of RochellRochelle powders. -- Seidlitz water, a natural water from Seidlitz, containing magnesium, sodium, calcium, and potassium sulphates, with calcium carbonate and a little magnesium chlori…

A preparation of bicarbonate of soda, tartaric acid, sugar, etc., variously flavored, for making an effervescing drink; -- called also sherbet powder.

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…

allic crystalline substance, which is used as a reducing agent, and otherwise. -- Sodium bicarbonate, a white crystalline substance, HNaCO3, with a slight alkaline taste resembling that of sodium carbonate. It is found in many mineral springs and also produced artificially,. It is used in cookery, in baking powders, a…

alcium superphosphate. It has been superseded by per-, bi-, di-, acid, etc. (as peroxide, bicarbonate, disulphide, and acid sulphate), which retain the old meanings of super-, but with sharper definition. Cf. Acid, a., Bi-, Di-, and Per-.

A bicarbonate. [Obsoles.]