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Pertaining to, or compounded of, chlorine and hydrogen gas; as, hydrochloric acid; chlorhydric. Hydrochloric acid (Chem.), hydrogen chloride; a colorless, corrosive gas, HCl, of pungent, suffocating odor. It is made in great quantities in the soda process, by the action of sulphuric acid on common salt. It has a great…

Of, pertaining to, or containing, nitric and hydrochloric acids. Nitrohydrochloric acid, a mixture of nitric and hydrochloric acids, usually in the proportion of one part of the former to three of the latter, and remarkable for its solvent action on gold and platinum; -- called also nitromuriatic acid, and aqua regia.…

Same as Peptohydrochloric.

Designating a hypothetical acid (called peptohydrochloric acid, pepsinhydrochloric acid, and chloropeptic acid) which is supposed to be formed when pepsin and dilute (0.1-0.4 per cent) hydrochloric acid are mixed together.

[L., royal water] (Chem.), a very corrosive fuming yellow liquid consisting of nitric and hydrochloric acids. It has the power of dissolving gold, the "royal" metal. -- Aqua Tofana, a fluid containing arsenic, and used for secret poisoning, made by an Italian woman named Tofana, in the middle of the 17th century, who…

Same as Hydrochloric.

Of or pertaining to an acid more generally called pepsin- hydrochloric acid.

as, the dissociation of the sulphur molecules; the dissociation of ammonium chloride into hydrochloric acid and ammonia.

e element replaces another in any particular compound; thus, as zinc replaces hydrogen in hydrochloric acid, their equivalents are 32.5 and 1. (b) The combining proportion by weight of a substance, or the number expressing this proportion, in any particular compound; as, the equivalents of hydrogen and oxygen in water…

ellow or greenish yellow gas, first prepared by Davy, evolved from potassium chlorate and hydrochloric acid. It is supposed to consist of chlorine tetroxide with some free chlorine.

t of glands contained in the mucous membrane of the stomach. It consists mainly of dilute hydrochloric acid and the ferment pepsin. It is the most important digestive fluid in the body, but acts only on proteid foods. -- Gastric remittent fever (Med.), a form of remittent fever with pronounced stomach symptoms.…

ine, nitrogenous substance, with a sweet taste, formed from hippuric acid by boiling with hydrochloric acid, and present in bile united with cholic acid. It is also formed from gelatin by decomposition with acids. Chemically, it is amido-acetic acid. Called also glycin, and glycocin.

arly in the embryo. It is quickly changed into sugar when boiled with dilute sulphuric or hydrochloric acid, and also by the action of amylolytic ferments.

An acid containing hydrogen; -- sometimes applied to distinguish acids like hydrochloric, hydrofluoric, and the like, which contain no oxygen, from the oxygen acids or oxacids. See Acid.

A combining form of hydrogen, indicating hydrogen as an ingredient, as hydrochloric; or a reduction product obtained by hydrogen, as hydroquinone.

less, pungent, corrosive gas, HBr, usually collected as a solution in water. It resembles hydrochloric acid, but is weaker and less stable. Called also hydrogen bromide.

A compound of hydrochloric acid with a base; -- distinguished from a chloride, where only chlorine unites with the base.

acid on yellow prussiate of potassium (potassium ferrocyanide), and chemically resembles hydrochloric and hydrobromic acids. Called also prussic acid, hydrogen cyanide, etc.

the action of the currents or waves of the sea; as, marine deposits. Marine acid (Chem.), hydrochloric acid. [Obs.] -- Marine barometer. See under Barometer. -- Marine corps, a corps formed of the officers, noncommissioned officers, privates, and musicants of marines. -- Marine engine (Mech.), a steam engine for prop…

mineral waters. Mineral acids (Chem.), inorganic acids, as sulphuric, nitric, phosphoric, hydrochloric, acids, etc., as distinguished from the organic acids. -- Mineral blue, the name usually given to azurite, when reduced to an impalpable powder for coloring purposes. -- Mineral candle, a candle made of paraffine.…