Atomic Number: 13 Atomic Weight: 26.981539 Discovery: Hans Christian Oersted (1825 Denmark), Wohler (1827) Word Origin: Latin alumen: alum, an astringent.

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Presentation transcript:

Atomic Number: 13 Atomic Weight: Discovery: Hans Christian Oersted (1825 Denmark), Wohler (1827) Word Origin: Latin alumen: alum, an astringent and dyeing mordant

Properties 1.Aluminum has a melting point of °C, 2.It has a boiling point of 2467°C, specific gravity of (20°C), 3.Aluminium has a valence of 3. 4.Pure aluminum is a silvery-white metal. 5.It is soft, light, relatively nontoxic, with a high thermal conductivity, 6.high corrosion resistance. It can be easily formed, machined, or cast. 7.Aluminum is nonmagnetic and nonsparking. 8.second among metals in terms of malleability and sixth in ductility. 9.Aluminum coatings are highly reflective of both visible and radiant heat. 10.The coatings form a thin layer of protective oxide and do not deteriorate like silver coatings.

Uses of aluminium

Further Uses Ancient Greeks and Romans used alum as an astringent, for medicinal purposes, and as a mordant in dyeing. It is used in kitchen utensils, exterior decorations, and thousands of industrial applications. aluminum is used in electrical transmission lines because of its light weight. The alloys of aluminum are used in the construction of aircraft and rockets. Reflective aluminum coatings are used for telescope mirrors, making decorative paper, packaging, and many other uses. Alumina is used in glassmaking and refractories. Synthetic ruby and sapphire have applications in producing coherent light for lasers.

Aluminium Facts Aluminum was once called the "Metal of Kings" because pure aluminum was more expensive to produce than gold until the Hall-Heroult process was discovered. The primary source of aluminum is the ore bauxite. Aluminum is paramagnetic. The IUPAC adopted the name Aluminium in 1990 and in 1993 recognized aluminum as an acceptable option for the element's name.

Charles HallPaul Héroult Extraction In the early 19 th century, The modern method of Aluminium extraction was discovered independently by two scientists in It greatly decreased the cost of producing Aluminium, making it easily commercially available.

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