- low-alkali
- <chem> ■ alkaliarm
English-german technical dictionary. 2013.
low-alkali
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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 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 — Group → 1 ↓ Period 2 3 Li 3 … Wikipedia
Low-energy ion scattering — LEIS redirects here; for the Hawaiian garland see Lei (Hawaii). Low energy ion scattering spectroscopy (LEIS), sometimes referred to simply as ion scattering spectroscopy (ISS), is a surface sensitive analytical technique used to characterize the … Wikipedia
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 — Any of several common silicate minerals that often occur as whitish to variously coloured, glassy crystals. The alkali feldspars may be regarded as mixtures of sodium aluminosilicate (NaAlSi3O8) and potassium aluminosilicate (KAlSi3O8). Both the… … 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 rock — Mineral. any igneous rock with a marked preponderance of alkali and a low percentage of silica. * * * … Universalium
alkali rock — Mineral. any igneous rock with a marked preponderance of alkali and a low percentage of silica … Useful english dictionary
alkali mallow — noun : a low whitish scurfy perennial herb (Sida hederacea) having roundish or kidney shaped leaves and cream colored flowers … Useful english dictionary
white alkali — noun 1. : a mixture of salts (as sodium sulfate, magnesium sulfate, and sodium chloride) forming a white crust on some alkali soils 2. : refined soda ash * * * 1. Agric. a whitish layer of mineral salts, esp. sodium sulfate, sodium chloride, and… … Useful english dictionary
