Search the Dictionary

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

Malleable iron, iron that is capable of extension or of being shaped under the hammer; decarbonized cast iron. See under Iron. -- Malleable iron castings, articles cast from pig iron and made malleable by heating then for several days in the presence of some substance, as hematite, which deprives the cast iron of som…

A hydrocarbon radical, CH2.(CO)2, from malonic acid.

to oxidize and remove sulphur. It is analogous in apparatus to the Bessemer process for decarbonizing cast iron. So called from Pierre Manhès, a French metallurgist, who invented it.

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.

sirup of sarsaparilla or other flavoring extract, and water. It is sometimes charged with carbonic acid gas. [U. S.]

A complex nitrogenous hydrocarbon obtained artificially (as by the action of cyanogen chloride on aniline) as a white, crystalline substance; -- called also diphenyl guanidin.

An unsaturated hydrocarbon, C30H60, of the ethylene series, obtained from beeswax as a white, scaly, crystalline wax; -- called also melissene, and melissylene.

A colorless liquid hydrocarbon resembling oil of turpentine, obtained by dehydrating menthol. It has an agreeable odor and a cooling taste.

Offensive to the smell; as, mephitic odors. Mephitic air (Chem.), carbon dioxide; -- so called because of its deadly suffocating power. See Carbonic acid, under Carbonic.

A colorless, fragrant liquid, C6H3(CH3)3, of the benzene series of hydrocarbons, obtained by distilling acetone with sulphuric acid. -- Me*sit`y*len"ic, a.

ining form denoting in the middle, intermediate; specif. (Chem.), denoting a type of hydrocarbons which are regarded as methenyl derivatives. Also used adjectively.

compounds possess or produce acid, rather than basic, properties; a nonmetal; as, boron, carbon, phosphorus, nitrogen, oxygen, sulphur, chlorine, bromine, etc., are metalloids.

A light, colorless, gaseous, inflammable hydrocarbon, CH4; marsh gas. See Marsh gas, under Gas. Methane series (Chem.), a series of saturated hydrocarbons, of which methane is the first member and type, and (because of their general chemical inertness and indifference) called also the paraffin (little affinity) series.…

The hypothetical hydrocarbon radical CH, regarded as an essential residue of certain organic compounds.

A hydrocarbon radical, CH3, not existing alone but regarded as an essential residue of methane, and appearing as a component part of many derivatives; as, methyl alcohol, methyl ether, methyl amine, etc. [Formerly written also methule, methyle, etc.] Methyl alcohol (Chem.), a light, volatile, inflammable liquid, CH3.OH…

A hydrocarbon radical, CH2, not known in the free state, but regarded as an essential residue and component of certain derivatives of methane; as, methylene bromide, CH2Br2; -- formerly called also methene. Methylene blue (Chem.), an artificial dyestuff consisting of a complex sulphur derivative of diphenyl amine; -- c…

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

him as a mild and merciful Being. Rogers. Mild, or Low, steel, steel that has but little carbon in it and is not readily hardened.

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…