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Chemical database: Aluminium

chemistry tutorials - aluminium

Chemical formula Al
Molar mass 26.98 g mol -1
Density 2.70 g cm -3
Melting point 660.32 °C
Boiling point 2519 °C
Solubility -
CAS number 7429-90-5
Hazards chemistry tutorials - aluminium - additional data: (R:50)

Aluminium is a relatively hard metal with a silvery gray coloration. Its atomic number is 13, and its mass number is equal to 26.98. Most of the aluminium is produced from bauxite (a mineral which is composed of several aluminium compounds, like AlO(OH) and Al(OH)3). Aluminium is known for its relatively low density and for being resistant to corrosion thanks to its ability to form a layer of aluminium oxide on its surface which prevents further corrosion (passivation). It is used in the production of various vehicles (bicycles, cars, aircraft, spacecraft, etc.), in the production of packaging products, as a construction material, in electrotechnics, in pyrotechnics, in the production of paint, in the production of rocket fuel and thermite, in the production of various alloys, etc.

Powdered aluminium can be bought in stores that sell paint, varnishes and solvents. It can also be found at workshops that make and sell paint, and in factories which process aluminium.

 

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