Search results

• Prussian blue
  ...print]]s. It has been used as an [[antidote]] for certain kinds of [[heavy metal poisoning]]. ...ref name=Dunbar>*Dunbar, K. R. and Heintz, R. A., "Chemistry of Transition Metal Cyanide Compounds: Modern Perspectives", Progress in Inorganic Chemistry, 1
  20 KB (3,004 words) - 16:47, 27 September 2010
• Sodium nitroprusside
  ...a, I.; Kovalevsky, A. | title = Photoinduced Linkage Isomers of Transition-Metal Nitrosyl Compounds and Related Complexes | journal = [[Chem. Rev.]] | year ...he dianion [Fe(CN)₅NO]²⁻. This [[metal nitrosyl]] complex is the active agent in medical applications.
  9 KB (1,095 words) - 16:48, 27 September 2010
• Bonding in solids
  ...motion of [[dislocations]] that mediate plastic deformation. Further, some transition metals exhibit directional bonding in addition to metallic bonding; this in .... As bonds become more polar, they become increasingly ionic in character. Metal oxides vary along the iono-covalent spectrum [http://www.hindawi.com/journa
  11 KB (1,614 words) - 10:08, 20 September 2010
• Biopolymer
  ...cellulose and starch. But increasing attention is being given to the more complex carbohydrate polymers which are produced by bacteria and fungi. Examples in ...water and cast as films, the above phenomenon yields to a plastic-brittle transition and ultimalte brittle failure in the film.
  68 KB (9,959 words) - 10:10, 20 September 2010
• Polypropylene
  ...2008, Chapter 4</ref>,<ref>J. Severn, R. L. Jones ''Handbook of Transition Metal Polymerization Catalysts'', R. Hoff, R. T. Mathers, eds, Wiley, 2010, Chapt ...plastic moldings, wherein it is injected into a mold while molten, forming complex shapes at relatively low cost and high volume; examples include bottle tops
  25 KB (3,657 words) - 10:10, 20 September 2010
• Polyethylene terephthalate
  | [[Glass transition temperature|Glass temperature]] ...d]] by [[evaporation|evaporating]] a [[Thin-film deposition|thin film]] of metal onto it to reduce its permeability, and to make it reflective and opaque ([
  43 KB (6,272 words) - 10:11, 20 September 2010
• Polymer
  ...g chain branches may increase polymer strength, toughness, and the [[glass transition temperature]] (T_g) due to an increase in the number of entanglem ...se chain mobility, increase strength and toughness, and increase the glass transition temperature (T_g){{Citation needed|date=May 2009}}. This is a res
  45 KB (6,501 words) - 10:11, 20 September 2010
• Coordination polymers
  ...=X.|year=2006|title=Synthesis, structures and properties of alkaline earth metal benzene-1,4-dioxylacetates with three-dimensional hybrid networks|journal=C ...{cite journal|last=Chen|first=X|coauthors=Ye, B., Tong, M.|year=2005|title=Metal-organic molecular architectures with 2,2′-bipyridyl-like and carboxylate
  23 KB (3,302 words) - 10:11, 20 September 2010
• Crystallization of polymers
  ...in one polymer, but not in another. Many of the good nucleating agents are metal salts of organic acids, which themselves are crystalline at the solidificat ...Higher temperatures destroy the molecular arrangement and below the glass transition temperature, the movement of molecular chains is frozen.<ref name="Becker">
  18 KB (2,533 words) - 10:11, 20 September 2010
• Metallurgy
  ...|Georg Agricola, author of ''De re metallica'', an important early book on metal extraction]] ...[[materials science]] that studies the physical and chemical behavior of [[metal]]lic [[Chemical element|elements]], their [[intermetallics|intermetallic co
  14 KB (1,922 words) - 10:13, 20 September 2010
• Ruthenium
  ...] 44, and is represented by the symbol '''Ru'''. It is a rare [[transition metal]] of the [[platinum group]] of the [[periodic table]]; and like the other m ...thenium a half bar.jpg|thumb|left|alt=An irregular bar of lustrous silvery metal. One end is rough, as though broken, while the other, cigar-shaped end is r
  39 KB (5,430 words) - 10:13, 20 September 2010
• Polystyrene
  ...(glassy) state at room temperature, but flows if heated above its [[glass transition temperature]] (for [[Molding (process)|molding]] or extrusion), and becomes ...l group]] (the name given to the aromatic ring [[benzene]], when bonded to complex carbon substituents). Polystyrene's chemical formula is (C₈H<sub
  36 KB (5,017 words) - 10:14, 20 September 2010
• Kerosene
  | work =Excerpt from Yo-Ho-Ho and a Bottle of Unrefined Complex Liquid Hydrocarbons. Pennsylvania Geology, v. 26, No. 1, p. ...l fishing craft, these are bi-fuel engines that start on gasoline and then transition to kerosene once the engine reaches engine temperature. Multi-fuel Evinrud
  26 KB (3,820 words) - 10:18, 20 September 2010
• Steel
  ...further lowered the cost of production while increasing the quality of the metal. Today, steel is one of the most common materials in the world, with more t ...romium is added to steel so that a hard [[passivation|oxide]] forms on the metal surface; this is known as [[stainless steel]]. [[Tungsten]] interferes with
  44 KB (6,419 words) - 10:22, 20 September 2010
• Iron
  ...ng-la|ferrum}}) and [[atomic number]] 26. It is a [[metal]] in the [[first transition series]]. Like other [[Group 8 element]]s, it exists in a wide range of [[o ...clear fusion reaction that is [[exothermic]]. Iron is the most widely used metal, and iron compounds, which include ferrous and ferric compounds, have sever
  67 KB (9,808 words) - 10:24, 20 September 2010
• Wood
  The structure of hardwoods is more complex.<ref>[http://www.uwsp.edu/papersci/biasca/ps350/Hardwood%20Structure.htm Ha :"When the rings are wide, the transition from spring wood to summer wood is gradual, while in the narrow rings the s
  41 KB (6,609 words) - 10:24, 20 September 2010
• Ethylene oxide
  ...and intermediates, such as [[ethylene glycol]], ethanolamines, simple and complex glycols, polyglycol ethers and other compounds. It is also a common gas-pha ...f ethylene oxide with fatty alcohols proceed in the presence of [[sodium]] metal, [[sodium hydroxide]] or [[boron trifluoride]] and are used for the synthes
  82 KB (11,709 words) - 21:31, 20 September 2010
• Manganese
  ...inerals. As a free element, manganese is a metal with important industrial metal alloy uses, particularly in stainless steels. ...d are used industrially as [[pigment]]s. The [[permanganate]]s of [[alkali metal|alkali]] and [[alkaline earth metals]] are powerful oxidizers. Manganese di
  44 KB (6,128 words) - 21:32, 20 September 2010
• Chromium
  ...in Group 6. It is a steely-gray, [[Lustre (mineralogy)|lustrous]], hard [[metal]] that takes a high polish and has a high melting point. It is also odorles ...ectroplating]] with chromium) are currently the highest-volume uses of the metal. Chromium and [[ferrochromium]] are produced from the single commercially v
  51 KB (7,299 words) - 21:34, 20 September 2010
• Cadmium
  ...]. It is similar in many respects to zinc but forms [[Complex (chemistry)|complex]] compounds.
  34 KB (4,743 words) - 21:34, 20 September 2010

View (previous 20 | next 20) (20 | 50 | 100 | 250 | 500)