Search the Dictionary

Having an excessive proportion of carbonic acid; -- said of bicarbonates or acid carbonates. [Written also hypercarburetted.]

Hydrous carbonate of lanthanum, found in tabular while crystals.

, to cast the sounding lead for ascertaining the depth of water. -- White lead, hydrated carbonate of lead, obtained as a white, amorphous powder, and much used as an ingredient of white paint.

A mineral of a yellowish or greenish white color, consisting of the sulphate and carbonate of lead; -- so called from having been first found at Leadhills, Scotland.

A rock consisting chiefly of calcium carbonate or carbonate of lime. It sometimes contains also magnesium carbonate, and is then called magnesian or dolomitic limestone. Crystalline limestone is called marble.

ne scales, by heating lead moderately in a current of air or by calcining lead nitrate or carbonate. It is used in making flint glass, in glazing earthenware, in making red lead minium, etc. Called also massicot.

ra 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.

te substance, consisting of magnesium oxide, and obtained 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…

Native magnesium carbonate occurring in white compact or granular masses, and also in rhombohedral crystals.

Native hydrous carbonate of copper, usually occurring in green mammillary masses with concentric fibrous structure.

A mixed earthy substance, consisting of carbonate of lime, clay, and sand, in very varivble proportions, and accordingly designated as calcareous, clayey, or sandy. See Greensand.

of the nature of, or consisting of, mica and lime; -- applied to a mica schist containing carbonate of lime.

under Charcoal. -- Mineral cotton. See Mineral wool (below). -- Mineral green, a green carbonate of copper; malachite. -- Mineral kingdom (Nat. Sci.), that one of the three grand divisions of nature which embraces all inorganic objects, as distinguished from plants or animals. -- Mineral oil. See Naphtha, and Petr…

s of mountains. -- Mountain beaver (Zoöl.), the sewellel. -- Mountain blue (Min.), blue carbonate of copper; azurite. -- Mountain cat (Zoöl.), the catamount. See Catamount. -- Mountain chain, a series of contiguous mountain ranges, generally in parallel or consecutive lines or curves. -- Mountain cock (Zoöl.), cap…

Native sodium carbonate. [Written also anatron.]

Native sodium carbonate; natron. [Obs.] For though thou wash thee with niter, and take thee much soap, yet thine iniquity is marked before me. Jer. ii. 22. Cubic niter, a deliquescent salt, sodium nitrate, found as a native incrustation, like niter, in Peru and Chili, whence it is known also as Chili saltpeter. -- Nit…

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

A name for certain crustaceous marine algæ which secrete carbonate of lime on their surface, and were formerly thought to be of animal nature. They are now considered corallines of the genera Melobesia and Lithothamnion.

n one layer with the next as a ground. Onyx marble, a banded variety of marble or calcium carbonate resembling onyx. It is obtained from Mexico.

A white amorphous or 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.