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Longman Dictionary of Contemporary English
The Collaborative International Dictionary
Hydrochloric

Hydrochloric \Hy`dro*chlo"ric\, a. [Hydro-, 2 + chloric: cf. F. hydrochlorique.] (Chem.) 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 affinity for water, and the commercial article is a strong solution of the gas in water. It is a typical acid, and is an indispensable agent in commercial and general chemical work. Called also muriatic acid and chlorhydric acid.

Douglas Harper's Etymology Dictionary
hydrochloric

1817, in hydrochloric acid (proposed 1814 by Gay-Lussac); see hydro- + chloric (see chlorine).

Wiktionary
hydrochloric

a. (context chemistry English) Of or relating to hydrochloric acid.

WordNet
Wikipedia

Usage examples of "hydrochloric".

With hydrochloric acid, logwood ink marks turn reddish or reddish-gray, alizarin marks greenish, and aniline ink marks reddish or brownish-gray.

The residue contains the antimony as antimonate of soda, and is dissolved off the filter with hot dilute hydrochloric, with the help of a little tartaric, acid.

Compounds such as antimonite which are soluble in hydrochloric should be dissolved at once in that acid.

Take up with a few drops of dilute hydrochloric acid, add baric hydrate in excess, evaporate, and extract with water.

In solutions containing free hydrochloric or nitric acid, a precipitate is obtained with either baric chloride or sulphuric acid.

Nitrate of baryta will show the presence of sulphuric acid, and nitrate of silver of hydrochloric acid.

Of this liquid four quantities were taken which were severally acidulated with hydrochloric, propionic, butyric, and valerianic acids, in the proportions above indicated.

To the hydrochloric acid solution of the zinc and manganese add sodium acetate in large excess and pass sulphuretted hydrogen freely.

The precipitate, freed from manganese, is then dissolved in hydrochloric acid and titrated.

If the dishes show a manganese stain, wash them out with a few drops of hydrochloric and sulphurous acids.

The action of diluted sulphuric acid on metals closely resembles that of dilute hydrochloric acid.

The filtered solution is acidified with hydrochloric acid, warmed, and precipitated with sodium sulphite.

The acid solutions, however, are not precipitated by sulphuretted hydrogen, although in alkaline solutions a black sulphide is formed which is insoluble in dilute hydrochloric acid.

Re-dissolve in hydrochloric acid, and separate the iron by precipitating with ammonia and filtering.

If the iron precipitate is bulky, it is dissolved in a little hydrochloric acid, reprecipitated, and the filtrate added to the original one.