brown acid

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• Acid sulfate soil — Acid sulfate soils are naturally occurring soils, sediments or organic substrates (e.g. peat) that are formed under waterlogged conditions. These soils contain iron sulfide minerals (predominantly as the mineral pyrite) or their oxidation… …   Wikipedia

• Acid-free paper — is paper that has a neutral or basic pH (7 or slightly greater). It addresses the problem of preserving documents for long periods. Overview Paper made from wood based pulp that has not had its lignin removed goes yellow and deteriorates over… …   Wikipedia

• Brown algae — Temporal range: 150–0 Ma[1][2] …   Wikipedia

• Brown rice — (or hulled rice ) is unmilled or partly milled rice, a kind of whole grain. It has a mild nutty flavor, is chewier than white rice and becomes rancid more quickly, but is far more nutritious. [cite web|url=http://www.lammd.com/opinion/brown rice… …   Wikipedia

• brown coal — n. LIGNITE * * * ▪ coal classification       broad and variable group of low rank coals (coal) characterized by their brownish coloration and high (greater than 50 percent) moisture content. These coals typically include lignite and some… …   Universalium

• Acid neutralizing capacity — or ANC in short is a measure for the overall buffering capacity against acidification for a solution, e.g. surface water or soil water.ANC is defined as the difference between cations of strong bases and anions of strong acids (see below), or… …   Wikipedia

• Acid Rock — Psychedelic Rock Stilistische Ursprünge: Rock ’n’ Roll, Rhythm and Blues, Folk, Jazz, Klassische Musik Kultureller Ursprung: 1965 in den USA Typische Instrumente: Elektronische Or …   Deutsch Wikipedia

• Acid dissociation constant — Acetic acid, a weak acid, donates a proton (hydrogen ion, high …   Wikipedia

• Acid-alkali reaction — An acid alkali reaction is a special case of an acid base reaction, where the base used is also an alkali. When an acid reacts with an alkali it forms a metal, salt and water. Acid alkali reactions are also a type of neutralisation reaction.In… …   Wikipedia

• Brown Dog affair — The Brown Dog affair was a political controversy about vivisection that raged in Edwardian England from 1903 until 1910. It involved the infiltration of University of London medical lectures by Swedish women activists, pitched battles between… …   Wikipedia

• Brown bread — Bread Bread (br[e^]d), n. [AS. bre[ a]d; akin to OFries. br[=a]d, OS. br[=o]d, D. brood, G. brod, brot, Icel. brau[eth], Sw. & Dan. br[ o]d. The root is probably that of E. brew. [root]93. See {Brew}.] 1. An article of food made from flour or… …   The Collaborative International Dictionary of English