containing alkali

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• Alkali — In chemistry, an alkali (from Arabic: Al Qaly القلي, القالي ) is a basic, ionic salt of an alkali metal or alkaline earth metal element. Alkalis are best known for being bases (compounds with pH greater than 7) that dissolve in water. The… …   Wikipedia

• alkali feldspar — noun : feldspar containing alkali metals (as sodium or potassium or both) but little calcium …   Useful english dictionary

• Alkali soils — Alkali, or alkaline, soils are clay soils with a relatively high exchangeable sodium percentage, a relative high pH (> 9), a poor soil structure and a low infiltration capacity. Often they have a hard calcareous layer at 0.5 to 1 m. depth (in… …   Wikipedia

• Alkali soil — Any one of various soils found in arid and semiarid regions, containing an unusual amount of soluble mineral salts which effloresce in the form of a powder or crust (usually white) in dry weather following rains or irrigation. The basis of these… …   The Collaborative International Dictionary of English

• Alkali flat — A sterile plain, containing an excess of alkali, at the bottom of an undrained basin in an arid region; a playa. [Webster 1913 Suppl.] …   The Collaborative International Dictionary of English

• alkali metal — Chem. any of the group of univalent metals including potassium, sodium, lithium, rubidium, cesium, and francium, whose hydroxides are alkalis. [1880 85] * * * Any of the six chemical elements in the leftmost group of the periodic table (lithium,… …   Universalium

• Alkali-metal thermal to electric converter — The Alkali Metal Thermoelectric Converter (AMTEC) is a thermally regenerative electrochemical device for the direct conversion of heat to electrical energy. It is characterized by high potential efficiencies and no moving parts, which make it a… …   Wikipedia

• alkali flat — noun : a level area in an arid or semiarid region that is encrusted with salt or alkali (as the dried bed of an evaporated pond or lake) * * * a level area, as a dry lake bed, in which evaporation has concentrated alkali minerals, as sodium… …   Useful english dictionary

• alkali waste — Soda So da, n. [It., soda, in OIt., ashes used in making glass, fr. L. solida, fem. of solidus solid; solida having probably been a name of glasswort. See {Solid}.] 1. (Chem.) (a) Sodium oxide or hydroxide. (b) Popularly, sodium carbonate or… …   The Collaborative International Dictionary of English

• alkali flat — a level area, as a dry lake bed, in which evaporation has concentrated alkali minerals, as sodium sulfates and carbonates. Cf. salt flat. [1870 75, Amer.] * * * ▪ geological feature also called  Salina, or Salt Flat,         a playa, or dried out …   Universalium

• alkali disease — noun Etymology: so called from the belief that it was caused by alkaline water 1. : trembles of cattle compare milk sickness 2. : botulism of ducks compare duck sickness 3. : chronic selenosis * * * alkali disease, U.S. a disease of livestock,… …   Useful english dictionary