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separate water; eliminating water. Hydrolytic agents, such as sulphuric acid or caustic alkali. Encyc. Brit. Hydrolitic ferment (Physiol. Chem.), a ferment, enzyme, or chemical ferment, which acts only in the presence of water, and which causes the substance acted upon to take up a molecule of water. Thus, diastase of…

of another substance, or by evaporating the thinner parts. Acids dissolve or attenuate; alkalies precipitate or incrassate. Sir I. Newton. Liquors which time hath incrassated into jellies. Sir T. Browne.

That which indicates the condition of acidity, alkalinity, or the deficiency, excess, or sufficiency of a standard reagent, by causing an appearance, disappearance, or change of color, as in titration or volumetric analysis.

To destroy the effect of; to counteract; to neutralize; as, alkali kills acid. To kill time, to busy one's self with something which occupies the attention, or makes the time pass without tediousness.

A quantity of wood ashes, through which water passes, and thus imbibes the alkali.

t of the genus Leontice (L. leontopetalum), the tuberous roots of which contain so much alkali that they are sometimes used as a substitute for soap.

The oxide of lithium; a strong alkaline caustic similar to potash and soda, but weaker. See Lithium. Lithia emerald. See Hiddenite.

A metallic element of the alkaline group, occurring in several minerals, as petalite, spodumene, lepidolite, triphylite, etc., and otherwise widely disseminated, though in small quantities.

Lecanora tartarea, etc.), as a blue amorphous mass which consists of a compound of the alkaline carbonates with certain coloring matters related to orcin and orcein.

Impregnated with, or consisting of, alkaline salts extracted from wood ashes; impregnated with a salt or salts like a lixivium. Boyle.

ial from that which is insoluble; to leach, as ashes, for the purpose of extracting the alkaline substances.

Of or pertaining to lye or lixivium; of the quality of alkaline salts.

A solution of alkaline salts extracted from wood ashes; hence, any solution obtained by lixiviation.

A strong caustic alkaline solution of potassium salts, obtained by leaching wood ashes. It is much used in making soap, etc.

An alkaline colorless fluid, contained in the lymphatic vessels, coagulable like blood, but free from red blood corpuscles. It is absorbed from the various tissues and organs of the body, and is finally discharged by the thoracic and right lymphatic ducts into the great veins near the heart.

d by heating magnesium hydrate or carbonate, or by burning magnesium. It has a slightly alkaline reaction, and is used in medicine as a mild antacid laxative. See Magnesium. Magnesia alba Etym: [L.] (Med. Chem.), a bulky white amorphous substance, consisting of a hydrous basic carbonate of magnesium, and used as a mild…

To treat (cotton fiber or fabrics) with a solution of caustic alkali. Such treatment causes the fiber to shrink in length and become stronger and more receptive of dyes. If the yarn or cloth is kept under tension during the process, it assumes a silky luster. -- Mer`cer*i*za"tion (#), n.

mium. -- Heavy metals (Chem.), the metallic elements not included in the groups of the alkalies, alkaline earths, or the earths; specifically, the heavy metals, as gold, mercury, platinum, lead, silver, etc. -- Light metals (Chem.), the metallic elements of the alkali and alkaline earth groups, as sodium, lithium, ca…

Formerly, the metallic base of a fixed alkali, or alkaline earth; -- applied by Sir H. Davy to sodium, potassium, and some other metallic substances whose metallic character was supposed to be not well defined.

called also methol, carbinol, etc. -- Methyl amine (Chem.), a colorless, inflammable, alkaline gas, CH3.NH2, having an ammoniacal, fishy odor. It is produced artificially, and also occurs naturally in herring brine and other fishy products. It is regarded as ammonia in which a third of its hydrogen is replaced by met…