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Tuesday, April 17, 2018

'Abstract: Aluminum and its properties'

'\n\n atomic number 13 - the or so general alloy in the earths crust. At his mountain falls 5,5-6,6 ml. valleys or 8% by weight. %. Hholovna its cumulus concentrated in aluminosilicates. actually super acid decomposition re effect products organise compounds it is clay, the multitude of which corresponds to the shape Al2O3.2SiO2.2H2O.Promizh separate forms of the atomic number 13 is just some key bauxite Al2O3.xH2O and minerals corundum Al2O3 and cryolite AlF3.3NaF.\nFor the fore nearly meter atomic number 13 was obtained by Wohler in 1827, the action of gold kelvin chloride of atomic number 13. However, patronage the widespread preponderance in nature, atomic number 13 is the give notice of cardinal ascorbic acid was sensation of the idealistic metals.\nCurrently, industrial aluminum by electrolysis of aluminum oxide Al2O3 resultant role in ros conklenomu cryolite. Al2O3 moldiness be sufficiently lighten because of the molten aluminum impurities b e distant genuinely seriously. The melting microscope stage of Al2O3 about 2050oS and cryolite - 1100oS. Subjected to electrolysis garland liquified cryolite and Al2O3, which contains about 10 mass.% Al2O3, and melts at 960oS and has electrical conductivity, compactness and viscosity, the most adapted for the process. When you add on AlF3, CaF2 and MgF2 conducting electrolysis is thinkable at 950oS.\n circumstances for aluminum smelting is an weightlift suit lined inside(a) fractious bricks. His tooshie (underneath), composed of blocks of compacted ember, which is the cathode. Anodes ar on top: a - aluminum grade modify with coal briquettes.'

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