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e act of uniting chemically with a solid substance or in a solid form; reduction to a non-volatile condition; -- said of gaseous elements.

Stable; non-volatile. Fixed air (Old Chem.), carbonic acid or carbon dioxide; -- so called by Dr. Black because it can be absorbed or fixed by strong bases. See Carbonic acid, under Carbonic. -- Fixed alkali (Old Chem.), a non-volatile base, as soda, or potash, in distinction from the volatile alkali ammonia. -- Fixe…

m of colored glass. Knight. Flashing point (Chem.), that degree of temperature at which a volatile oil gives off vapor in sufficient quantity to burn, or flash, on the approach of a flame, used as a test of the comparative safety of oils, esp. kerosene; a flashing point of 100º F. is regarded as a fairly safe standard.…

A colorless, volatile liquid, H2CO, resembling acetic or ethyl aldehyde, and chemically intermediate between methyl alcohol and formic acid.

Flying, or disposed to fly; fleeing away; lasting but a short time; volatile. Much of its possessions is so hid, so fugacious, and of so uncertain purchase. Jer. Taylor.

Not fixed; not durable; liable to disappear or fall away; volatile; uncertain; evanescent; liable to fade; -- applied to material and immaterial things; as, fugitive colors; a fugitive idea. The me more tender and fugitive parts, the leaves . . . of vegatables. Woodward. Fugitive compositions, Such as are short and occ…

Exhalation; volatile matter (esp. noxious vapor or smoke) ascending in a dense body; smoke; vapor; reek; as, the fumes of tobacco. The fumes of new shorn hay. T. Warton. The fumes of undigested wine. Dryden.

Fine, light particles or fibers; loose, volatile matter. Fuzz ball, a kind of fungus or mushroom, which, when pressed, bursts and scatters a fine dust; a puffball.

tus for the generation of gases, or for impregnating a liquid with a gas, or a gas with a volatile liquid.

A highly volatile mixture of fluid hydrocarbons, obtained from petroleum, as also by the distillation of bituminous coal. It is used in making air gas, and in giving illuminating power to water gas. See Carburetor.

e restless flycatcher (Seisura inquieta) of Australia; -- called also restless thrush and volatile thrush. It makes a noise like a scissors grinder, to which the name alludes. Grinder's asthma, phthisis, or rot (Med.), a lung disease produced by the mechanical irritation of the particles of steel and stone given off in…

Wild; giddy; volatile; heedless. "A mad hare-brained fellow." North (Plutarch). [Written also hairbrained.]

Spirits of hartshorn (see below); volatile salts. Hartshorn plantain (Bot.), an annual species of plantain (Plantago Coronopus); -- called also duck's-horn. Booth. -- Hartshorn shavings, originally taken from the horns of harts, are now obtained chiefly by planing down the bones of calves. They afford a kind of jelly.…

Any one of five hydrocarbons, C6H14, of the paraffin series. They are colorless, volatile liquids, and are so called because the molecule has six carbon atoms.

A hydrocarbon, C6H10, of the acetylene series, obtained artificially as a colorless, volatile, pungent liquid; -- called also hexoylene.

the combination of, hydrogen and cyanogen. Hydrocyanic acid (Chem.), a colorless, mobile, volatile liquid, HCN, having a characteristic peach-blossom odor. It is one of the most deadly poisons. It is made by the action of sulphuric acid on yellow prussiate of potassium (potassium ferrocyanide), and chemically resembles…

orine; fluohydric; as, hydrofluoric acid. Hydrofluoric acid (Chem.), a colorless, mobile, volatile liquid, HF, very corrosive in its action, and having a strong, pungent, suffocating odor. It is produced by the action of sulphuric acid on fluorite, and is usually collected as a solution in water. It attacks all silicat…

ammonia, and produced by a modified reduction of nitric acid. It is usually obtained as a volatile, unstable solution in water. It acts as a strong reducing agent.

temperature through the sudden expansion of a gas or vapor, or the rapid evaporation of a volatile liquid. -- Ice master. See Ice pilot (below). -- Ice pack, an irregular mass of broken and drifting ice. -- Ice paper, a transparent film of gelatin for copying or reproducing; papier glacé. -- Ice petrel (Zoöl.), a s…

A rich, powerful, perfume, obtained from the volatile oil of the flowers of Canada odorata, an East Indian tree. [Also written ylang-ylang.]