![]() ![]() The melting point of aluminum is 660 ☌, and its boiling temperature is 2470 ☌. It is also very ductile, and can easily be turned into a thin sheet or foil. The physical properties of aluminumĪluminum is a silvery-white light metal, which can form alloys with the majority of metals, especially copper and magnesium, and also silicon. Metallic aluminum is safe, but its compounds can have a toxic effect on humans and animals, particularly aluminum chloride, acetate, and sulfate. Thanks to its malleability and lightness, and also its corrosion resistance, aluminum is a valuable metal of great importance in modern industry, from which such household items are made as kitchenware, and in industry: for example, it is widely used in aircraft and automobile construction.Īluminum is also one of the most inexpensive and economical materials, as it can be used endlessly, by melting down used aluminum cans and other objects. It is difficult to appreciate the value of this metal in its present form, as many items made of aluminum are used by people in everyday life. The industrial method involved the electrolysis of an alloy of cryolite, in which aluminum oxide was dissolved. ![]() But soon, in 1886, a method was developed by Charles Martin Hall and Paul Héroult for producing aluminum in industrial scale, which drastically reduced the cost of this metal, and allowed it to be used in the metallurgical industry.
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