alkali-lime
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Lime plaster — is a mixture of calcium hydroxide and sand (or other inert [http://en.wikipedia.org/wiki/Filler (materials) filler materials] ). Carbon dioxide in the atmosphere causes the plaster to set by transforming the calcium hydroxide into calcium… … Wikipedia
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
lime — Ⅰ. lime [1] ► NOUN 1) quicklime, slaked lime, or any salt or alkali containing calcium. 2) archaic birdlime. ► VERB ▪ treat with lime. DERIVATIVES limy adjective … English terms dictionary
Alkali salts — or base (basic) salts are salts which has basic ions, such as Hydroxides or Carbonates. Rather than being neutral, as most salts are, basic salts are, as their name suggests, bases.The acidic equivalent of a basic salt is an acid salt, although… … Wikipedia
alkali — ► NOUN (pl. alkalis or US also alkalies) ▪ a compound, such as lime or caustic soda, with particular chemical properties including turning litmus blue and neutralizing or effervescing with acids. DERIVATIVES alkalize (also alkalise) verb. ORIGIN… … English terms dictionary
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 — /al keuh luy /, n., pl. alkalis, alkalies, adj. n. 1. Chem. a. any of various bases, the hydroxides of the alkali metals and of ammonium, that neutralize acids to form salts and turn red litmus paper blue. b. any of various other more or less… … Universalium
Lime kiln — A lime kiln is a kiln used to produce quicklime by the calcination of limestone (calcium carbonate). The chemical equation for this reaction is::CaCO3 + heat → CaO + CO2This reaction takes place at 900°C (at which temperature the partial pressure … Wikipedia
Lime sulfur — In horticulture, lime sulfur (British spelling lime sulphur) is a mixture of calcium polysulfides formed by reacting calcium hydroxide with sulfur. It can be prepared by boiling calcium hydroxide and sulfur together with a small amount of… … Wikipedia
lime — lime1 noun 1》 quicklime, slaked lime, or any salt or alkali containing calcium. 2》 archaic birdlime. verb 1》 treat with lime. 2》 archaic catch (a bird) with birdlime. Derivatives limy adjective Origin OE līm, of Gmc origin; related to loam … English new terms dictionary
