Search the Dictionary

s red; -- said of certain salts or other compounds. Contrasted with Ant: acid, and Ant: alkaline. Neutral axis, Neutral surface (Mech.), that line or plane, in a beam under transverse pressure, at which the fibers are neither stretched nor compressed, or where the longitudinal stress is zero. See Axis. -- Neutral equi…

d animal matter in the presence of air, moisture, and some basic substances, as lime or alkali carbonate, is converted into nitrates.

particularly, one of those cyanides of alcohol radicals which, by boiling with acids or alkalies, produce a carboxyl acid, with the elimination of the nitrogen as ammonia.

le substance. It forms salts called nitroprussides, which give a rich purple color with alkaline subphides.

t of the nuclei of all cells. It is a colorless amorphous substance, readily soluble in alkaline fluids and especially characterized by its comparatively large content of phosphorus. It also contains nitrogen and sulphur.

Cf. OEnanthylic. OEnanthic acid, an acid obtained from oenanthic ether by the action of alkalies. -- OEnanthic ether, an ethereal substance (not to be confused with the bouquet, or aroma, of wine) found in wine lees, and consisting of a complex mixture of the ethereal salts of several of the higher acids of the acetic…

the pancreatic secretion, digestion, ferments. Pancreatic juice (Physiol.), a colorless alkaline fluid secreted intermittently by the pancreatic gland. It is one of the most important of the digestive fluids, containing at least three distinct ferments, trypsin, steapsin and an amylolytic ferment, by which it acts upon…

granular substance which consists principally of potassium carbonate, and has a strong alkaline reaction. It is obtained by lixiviating wood ashes, and evaporating the lye, and has been an important source of potassium compounds. It is used in making soap, glass, etc.

4, formed by condensation of the anhydride of phthalic acid and phenol. Its solution in alkalies is brilliant red, but is decolorized by acids. This reaction, being very delicate, is used as an indicator.

ucts of the phenols with phthalic acid, and well represented by phenol phthaleïn. Their alkaline solutions are fluorescent. Phenol phthalein, a white or yellowish white crystalline substance made from phthalic acid and phenol. Its solution in alkalies is brilliant red, but is decolorized by acids, and as this reaction…

ar cryptocrystalline mineral of a dull grayish or greenish white color. It is a hydrous alkaline silicate, and is derived from the alteration of other minerals, as iolite.

de of potassium hydrate, a hard white brittle substance, KOH, having strong caustic and alkaline properties; -- hence called also caustic potash.

An Alkali element, occurring abundantly but always combined, as in the chloride, sulphate, carbonate, or silicate, in the minerals sylvite, kainite, orthoclase, muscovite, etc. Atomic weight 39.0. Symbol K (Kalium).

nous substance found in the spermatic fluid of salmon. It is soluble in water, which an alkaline reaction, and unites with acids and metallic bases.

A body now known as alkali albumin, but originally considered to be the basis of all albuminous substances, whence its name. Protein crystal. (Bot.) See Crystalloid, n., 2.

The dung of dogs, used as an alkaline steep in tanning. Simmonds.

Quillaja Saponaria), native of Chili. The bark is finely laminated, and very heavy with alkaline substances, and is used commonly by the Chilians instead of soap. Also called soap bark.

id. When the blood stagnates in any part, it first coagulates, then resolves, and turns alkaline. Arbuthhnot.

r shrub (Artemisia tridentata), of the order Compositæ, covering vast tracts of the dry alkaline regions of the American plains; -- called also sagebush, and wild sage.

-- so called because erroneously supposed to be composed of two salts, one acid and one alkaline. -- Sal diureticus Etym: [NL.] (Old Med. Chem.), potassium acetate. -- Sal enixum Etym: [NL.] (Old Chem.), acid potassium sulphate. -- Sal gemm\'91 Etym: [NL.] (Old Min.), common salt occuring native. -- Sal Jovis Etym:…