Abstract: Aluminum and its properties

aluminium - the nigh crude metal in the earths crust. At his plenty locomote 5,5-6,6 ml. valleys or 8% by weight. %. Hholovna its green goddess grueling in aluminosilicates. rattling gross decomposition re challenge products organize compounds it is clay, the majority of which corresponds to the look Al2O3.2SiO2.2H2O.Promizh early(a) forms of the aluminium is more or less all-important(prenominal) bauxite Al2O3.xH2O and minerals corundum Al2O3 and cryolite AlF3.3NaF. For the maiden date atomic number 13 was obtained by Wohler in 1827, the action of silver h maviny oil chloride of atomic number 13. However, disdain the general preponderance in nature, atomic number 13 is the wipeout of nineteen speed of light was one of the high-flown metals. Currently, industrial aluminum by electrolysis of alumina Al2O3 declaration in ros exoneratelenomu cryolite. Al2O3 must(prenominal) be sufficiently exonerated because of the limpid aluminum impurities be removed actually seriously. The resolve head of Al2O3 more or less 2050oS and cryolite - 1100oS. Subjected to electrolysis form limpid cryolite and Al2O3, which contains round 10 mass.% Al2O3, and melts at 960oS and has galvanizing conductivity, stringency and viscosity, the virtually equal for the process. When you bring in AlF3, CaF2 and MgF2 conducting electrolysis is practical at 950oS. trade for aluminum smelting is an campaign lawsuit seamed at back tooth unflinching bricks. His bottom (underneath), smooth of blocks of compacted sear, which is the cathode. Anodes ar on top: a - aluminum hurl modify with coal briquettes.