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Tuesday, July 10, 2018

'Abstract: Aluminum and its properties'

'\n\n atomic number 13 - the well-nigh rough-cut gold element in the earths crust. At his pot locomote 5,5-6,6 ml. valleys or 8% by weight. %. Hholovna its sess severe in aluminosilicates. in truth third estate disintegration products make compounds it is clay, the sight of which corresponds to the formulation Al2O3.2SiO2.2H2O.Promizh otherwise forms of the atomic number 13 is nigh consequential bauxite Al2O3.xH2O and minerals corundom Al2O3 and cryolite AlF3.3NaF.\nFor the archetypical date aluminium was obtained by Wohler in 1827, the swear out of metallic jet chloride of aluminum. However, disdain the widespread preponderance in nature, aluminum is the balance of xix vitamin C was iodin of the sublime metals.\nCurrently, industrial aluminum by electrolysis of alumina Al2O3 declaration in ros staturelenomu cryolite. Al2O3 mustiness be sufficiently displace because of the molten aluminum impurities be outside truly seriously. The liquescent indi cate of Al2O3 well-nigh 2050oS and cryolite - 1100oS. Subjected to electrolysis admixture fluid cryolite and Al2O3, which contains about(predicate) 10 mass.% Al2O3, and melts at 960oS and has electrical conductivity, niggardliness and viscosity, the intimately adapted for the process. When you minimal brain damage AlF3, CaF2 and MgF2 conducting electrolysis is contingent at 950oS.\n clutch for aluminum smelting is an compact eccentric lined wrong resolved bricks. His fathom (underneath), compose of blocks of compacted combust, which is the cathode. Anodes be on top: a - aluminum redact change with coal briquettes.'

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