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  • ...environmental stress cracking]] when in contact with many organic liquids. Compounds such as [[gasoline]], [[kerosine]] and [[methylene chloride]] may initiate ...g expensive rare elements. It is highly resistant against the [[alkaline]] potassium hydroxide. For conductivity the plastic is sprayed with a nickel-based cata
    3 KB (399 words) - 10:09, 20 September 2010
  • ...erobic bacteria can be utilized by autotrophic bacteria to reduce oxidized compounds and CO<sub>2</sub> to form either acetic acid or methane. ...h monovalent cations, low molecular weight amines, and quaternary ammonium compounds. It becomes water-insoluble in the presence of polyvalent cations such as C
    68 KB (9,959 words) - 10:10, 20 September 2010
  • ...ians]] attempted to reduce the [[flammability]] of wood by soaking it in [[potassium aluminum sulfate]] ([[alum]]). Between 450 B.C. and the early 20th century, ..., A. A.; Talinli, N.; Akar, A. Ladder type polymers from dihydroxyaromatic compounds and dialdehydes. ''Angew. Makrom. Chem.'' '''1999,''' ''271'' (1), 8-10. IS
    17 KB (2,260 words) - 10:10, 20 September 2010
  • ...reaction is catalyzed by magnesium-, aluminium-, or calcium-organoelement compounds. To prevent [[coagulation]] of polymer chains from solution, chelating addi Alkali catalysts such as [[sodium hydroxide]] NaOH, [[potassium hydroxide]] KOH, or [[sodium carbonate]] Na<sub>2</sub>CO<sub>3</sub> are u
    20 KB (2,883 words) - 10:12, 20 September 2010
  • |data2 = [[Lithium]], [[Sodium]], [[Potassium]] ...rm [[oxide]]s over changing timescales (iron [[rust]]s over years, while [[potassium]] burns in seconds). Examples:
    24 KB (3,311 words) - 10:13, 20 September 2010
  • ...ermann, K.; Rothaut, J.; Drieselman, R. |chapter=Platinum group metals and compounds |title=Ullmann's Encyclopedia of Industrial Chemistry |publisher=Wiley |yea ==Chemical compounds==
    39 KB (5,430 words) - 10:13, 20 September 2010
  • ...50 [[meq]]/100 g. Vermiculite clays are weathered [[mica]]s in which the [[potassium]] ions between the [[molecular]] sheets are replaced by [[magnesium]] and [ *lightweight aggregate for [[plaster]], proprietary [[concrete]] compounds, [[firestop]] mortar and cementitious spray [[fireproofing]]
    16 KB (2,229 words) - 10:14, 20 September 2010
  • ...enic]], [[copper]], [[chromium]], [[borate]], and petroleum based chemical compounds are used. For more information on wood preservatives, see [[timber treatmen ...odium nitrite]], [[sulfite]]s ([[sulfur dioxide]], [[sodium bisulfite]], [[potassium hydrogen sulfite]], etc.) and [[EDTA|disodium EDTA]]. [[Antioxidant]]s inc
    5 KB (621 words) - 10:17, 20 September 2010
  • ...xy substance obtained from [[sperm whale]] oil, with [[caustic potash]] ([[potassium hydroxide]]). Flakes of cetyl alcohol were left behind on cooling.<ref>{{ci == Related compounds ==
    4 KB (438 words) - 10:17, 20 September 2010
  • ...at 450 °C. This causes sodium ions in the glass surface to be replaced by potassium ions from the bath solution. ...the glass, forming a thin sheet which washes away the broken-down organic compounds.
    19 KB (2,995 words) - 10:19, 20 September 2010
  • ...st widely used metal, and iron compounds, which include ferrous and ferric compounds, have several uses as well. ...ing complexes with dioxygen as [[hemoglobin]] and [[myoglobin]]; these two compounds are common [[oxygen transport]] proteins in vertebrates.
    67 KB (9,808 words) - 10:24, 20 September 2010
  • ...It ignites readily, burning with a smoky flame characteristic of aromatic compounds. Aniline is colorless, but it slowly [[organic oxidation|oxidizes]] and re ...tives of aniline can be prepared in similar fashion from nitrated aromatic compounds. Nitration followed by reduction of [[toluene]] affords [[toluidine]]s. Ni
    14 KB (2,008 words) - 13:10, 20 September 2010
  • ...added [[methyl group]] in the ''ortho-'' position of the lower ring. Both compounds behave essentially identically in biological staining applications, and mos ...s obtained by [[Sir William Henry Perkin]] by heating crude aniline with [[potassium]] [[chromate|bichromate]] and sulfuric acid. Mauveine was converted to ''
    5 KB (638 words) - 13:12, 20 September 2010
  • ...]], ethanolamines, simple and complex glycols, polyglycol ethers and other compounds. It is also a common gas-phase [[disinfectant]] which is widely used in hos ...859| title=}}</ref> who prepared it by treating [[2-chloroethanol]] with [[potassium hydroxide]]:
    82 KB (11,709 words) - 21:31, 20 September 2010
  • ...mentmagn.pdf|title = Magnetic susceptibility of the elements and inorganic compounds, in Handbook of Chemistry and Physics| publisher = CRC press| isbn = 084930 | +6 || [[Potassium manganate|{{chem|K|2|MnO|4}}]]
    44 KB (6,128 words) - 21:32, 20 September 2010
  • ...odiphenyl;<br>&mdash;their salts and any substance containing any of those compounds, in a total concentration equal to or greater than 0.1% by mass. *Containing compounds of [[silicon]] calculated as silica to the extent of more than 3% by weight
    21 KB (2,852 words) - 21:33, 20 September 2010
  • ...mann>Sabina C. Grund, Kunibert Hanusch, Hans Uwe Wolf "Arsenic and Arsenic Compounds" in Ullmann's Encyclopedia of Industrial Chemistry, VCH-Wiley, 2008, Weinhe ...minerals such as [[arsenopyrite]] with a hammer. Arsenic (and some arsenic compounds) [[sublimation (chemistry)|sublimes]] upon heating at atmospheric pressure,
    51 KB (7,314 words) - 21:34, 20 September 2010
  • ...Greek word "chrōma" (χρώμα), meaning [[color]], because many of its compounds are intensely colored. It was discovered by [[Louis Nicolas Vauquelin]] in ..., UK|isbn = 0198503407|chapter = Chromium|pages=495–498}}</ref> Chromium compounds are found in the environment, due to [[erosion]] of chromium-containing roc
    51 KB (7,299 words) - 21:34, 20 September 2010
  • ...ercury]]. Similar to zinc it prefers [[oxidation state]] +2 in most of its compounds and similar to mercury it shows a low melting point compared to [[transitio ...as a [[pigment]] and for corrosion resistant plating on [[steel]]. Cadmium compounds were used to stabilize [[plastic]]. With the exception of its use in [[nick
    34 KB (4,743 words) - 21:34, 20 September 2010
  • ...ation = Easton, PA |chapter = XII. Other Elements Isolated with the Aid of Potassium and Sodium: Beryllium, Boron, Silicon and Aluminium |isbn = 0-7661-3872-0}} ...ntly isolated beryllium in 1828 by the [[chemical reaction]] of metallic [[potassium]] with [[beryllium chloride]], as follows:
    41 KB (5,890 words) - 21:34, 20 September 2010

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