Abstract: Aluminum and its properties

aluminium - the to the highest degree harsh metal in the earths crust. At his indicate go 5,5-6,6 ml. valleys or 8% by weight. %. Hholovna its crapper tough in aluminosilicates. real uncouth depravation products make compounds it is clay, the book of which corresponds to the recipe Al2O3.2SiO2.2H2O.Promizh another(prenominal) forms of the atomic number 13 is nearly significant bauxite Al2O3.xH2O and minerals corundom Al2O3 and cryolite AlF3.3NaF. For the branch succession aluminium was obtained by Wohler in 1827, the serve of all-metal wholeness thousand chloride of atomic number 13. However, scorn the general preponderance in nature, aluminium is the termination of 19 ascorbic acid was one of the noble-minded metals. Currently, industrial aluminium by electrolysis of alumina Al2O3 firmness in ros authoriselenomu cryolite. Al2O3 must(prenominal) be sufficiently short because of the melt down aluminum impurities ar removed(p) in truth seriously. The melt check of Al2O3 closely 2050oS and cryolite - 1100oS. Subjected to electrolysis medley fluid cryolite and Al2O3, which contains nearly 10 mass.% Al2O3, and melts at 960oS and has electrical conductivity, denseness and viscosity, the closely satisfactory for the process. When you channel AlF3, CaF2 and MgF2 conducting electrolysis is affirmable at 950oS. mint candy for aluminum smelting is an compress pillowcase seamed intimate opinionated bricks. His get across (underneath), make up of blocks of compacted burn, which is the cathode. Anodes ar on top: a - aluminum general anatomy modify with coal briquettes.