- organic alkali
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Medical Chinese dictionary (湘雅医学词典). 2013.
organic 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
Organic superconductor — In physical chemistry and condensed matter physics, an organic superconductor is an organic compound which exhibits superconductivity at low temperatures. As of 2007 the highest achieved critical temperature for an organic superconductor at… … 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
Organic chemistry — Structure of the methane molecule: the simplest hydrocarbon compound. Organic chemistry is a subdiscipline within chemistry involving the scientific study of the structure, properties, composition, reactions, and preparation (by synthesis or by… … Wikipedia
alkali — Synonyms and related words: acid, acidity, agent, alkalinity, alloisomer, anion, antacid, atom, base, biochemical, cation, chemical, chemical element, chromoisomer, compound, copolymer, dimer, element, heavy chemicals, high polymer, homopolymer,… … Moby Thesaurus
black alkali — noun : alkali containing carbonates that dissolve organic matter and blacken soil or crusts : soil blackened by such alkali … Useful english dictionary
Vegetable alkali — Vegetable Veg e*ta*ble, a. [F. v[ e]g[ e]table growing, capable of growing, formerly also, as a noun, a vegetable, from L. vegetabilis enlivening, from vegetare to enliven, invigorate, quicken, vegetus enlivened, vigorous, active, vegere to… … The Collaborative International Dictionary of English
carbanion — /kahr ban uy euhn, on/, n. an organic ion containing a negatively charged carbon atom (opposed to carbonium ion). [1933; CARB + ANION] * * * ▪ chemistry Introduction any member of a class of organic compounds in which a negative electrical… … Universalium
Erwin Weiss (Chemiker) — Erwin Weiss (* 9. Juli 1926 in Arzberg/Oberfranken) ist ein deutscher Chemiker und Professor für Anorganische Chemie an der Universität Hamburg[1]. Inhaltsverzeichnis 1 Leben und Werk 2 Mitgliedschaften und Auszeichnungen … Deutsch Wikipedia
Hydroxide — Lewis structure of the hydroxide ion showing three lone pairs on the oxygen atom … Wikipedia
