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Aërated salt; 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 preparatio…

eak base, is an acid salt in this sense, though theoretically it is a neutral salt. -- Alkaline salt (Chem.), a salt which gives an alkaline reaction, as sodium carbonate. -- Amphid salt (Old Chem.), a salt of the oxy type, formerly regarded as composed of two oxides, an acid and a basic oxide. [Obsolescent] -- Basic…

into soap; specifically (Chem.), the decomposition of fats and other ethereal salts by alkalies; as, the saponification of ethyl acetate.

A soapy mixture obtained by treating an essential oil with an alkali; hence, any similar compound of an essential oil. [Written also saponule.] [Obs.]

Choline. [Written also sinkaline.]

ther, and is used as a cleansing agent. Soap is produced by combining fats or oils with alkalies or alkaline earths, usually by boiling, and consists of salts of sodium, potassium, etc., with the fatty acids (oleic, stearic, palmitic, etc.). See the Note below, and cf. Saponification. By extension, any compound of simi…

due or side product in the ordinary Leblanc process of soda manufacture; -- called also alkali waste. -- Soda water, originally, a beverage consisting of a weak solution of sodium bicarbonate, with some acid to cause effervescence; now, in common usage, a beverage consisting of water highly charged with carbon dioxide…

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 readily oxidized that it combines violently with water, and to be preserved must be kept under petroleum or some similar liquid. Sodium is used…

A substance allied to alkali albumin and to mucin, present in semen, to which it is said to impart the mucilaginous character.

f antimonic sulphide, Sb2S5, -- formerly a famous nostrum. -- Sulphur base (Chem.), an alkaline sulphide capable of acting as a base in the formation of sulphur salts according to the old dual theory of salts. [Archaic] -- Sulphur dioxide (Chem.), a colorless gas, SO2, of a pungent, suffocating odor, produced by the b…

acted upon by those substances; thus, litmus paper is turned red by acids, and blue by alkalies, turmeric paper is turned brown by alkalies, etc. (b) (Law) An instrument admitted as a standard or comparison of handwriting in those jurisdictions in which comparison of hands is permitted as a mode of proving handwriting…

A colorless volatile alkaline liquid, N.(CH3)3, obtained from herring brine, beet roots, etc., with a characteristic herringlike odor. It is regarded as a substituted ammonia containing three methyl groups.

n the pancreatic juice. Unlike the pepsin of the gastric juice, it acts in a neutral or alkaline fluid, and not only converts the albuminous matter of the food into soluble peptones, but also, in part, into leucin and tyrosin.

urmerol. Turmeric paper (Chem.), paper impregnated with turmeric and used as a test for alkaline substances, by which it is changed from yellow to brown. -- Turmeric root. (Bot.) (a) Bloodroot. (b) Orangeroot.

An alkaline salt of fluorescein, obtained as a brownish red substance, which is used as a dye; -- so called from the peculiar yellowish green fluorescence (resembling that of uranium glass) of its solutions. See Fluorescein.

ch is obtained, as a white crystalline substance, by the slow oxidation of uric acid in alkaline solution.

Consisting of, or comprising, plants; as, the vegetable kingdom. Vegetable alkali (Chem.), an alkaloid. -- Vegetable brimstone. (Bot.) See Vegetable sulphur, below. -- Vegetable butter (Bot.), a name of several kinds of concrete vegetable oil; as that produced by the Indian butter tree, the African shea tree, and the…

Capable of being vitrified, or converted into glass by heat and fusion; as, flint and alkalies are vitrifiable.

; fickle; as, a volatile temper. You are as giddy and volatile as ever. Swift. Volatile alkali. (Old Chem.) See under Alkali. -- Volatile liniment, a liniment composed of sweet oil and ammonia, so called from the readiness with which the latter evaporates. -- Volatile oils. (Chem.) See Essential oils, under Essential…

filter, etc. -- Washing fluid, a liquid used as a cleanser, and consisting usually of alkaline salts resembling soaps in their action. -- Washing machine, a machine for washing; specifically, a machine for washing clothes. -- Washing soda. (Chem.) See Sodium carbonate, under Sodium. -- Washing stuff, any earthy de…