What is the definition for Aluminium?
noun. a light malleable ductile silvery-white metallic element that resists corrosion; the third most abundant element in the earth’s crust (8.1 per cent), occurring only as a compound, principally in bauxite. It is used, esp in the form of its alloys, in aircraft parts, kitchen utensils, etc.
What is the meaning of aluminum in cookery?
Aluminium is a lightweight metal used, for example, for making cooking equipment and aircraft parts. [British]
Is aluminum in the dictionary?
noun. Chemistry. a silver-white metallic element, light in weight, ductile, malleable, and not readily corroded or tarnished, occurring combined in nature in igneous rock, shale, clay, and most soil: used in alloys and for lightweight utensils, castings, airplane parts, etc.
What is the definition of aluminum in chemistry?
Aluminum (Al), also spelled aluminium, chemical element, a lightweight silvery white metal of main Group 13 (IIIa, or boron group) of the periodic table. Aluminum is the most abundant metallic element in Earth’s crust and the most widely used nonferrous metal.
What is aluminum and examples?
Aluminum is the most widely used non-ferrous metal. For example, the common aluminum foils and beverage cans are alloys of 92% to 99% aluminum. Some of the many uses for aluminum metal are in: Transportation as sheet, tube, castings, etc. Packaging (cans, foil, etc. )
What is so special about aluminum?
It has low density, is non-toxic, has a high thermal conductivity, has excellent corrosion resistance and can be easily cast, machined and formed. It is also non-magnetic and non-sparking. It is the second most malleable metal and the sixth most ductile.
What is so great about aluminum?
Aluminum is an excellent heat and electricity conductor and in relation to its weight is almost twice as good a conductor as copper. It is also a superb heat sink for many applications that require heat to be drained away rapidly, such as in computer motherboards and LED lights.
What are two interesting facts about aluminum?
Facts about aluminum
- Aluminum is abundant. Aluminum is the third most abundant element in the earth’s crust, after oxygen and silicon.
- Aluminum is lightweight.
- Aluminum keeps food fresh.
- Aluminum is easy to form.
- Aluminum is a great reflector.
- Aluminum is low-maintenance.
- Aluminum is infinitely recyclable.
What is the sign for aluminum?
symbol Al
Where do we get aluminum from?
bauxite
Why does aluminum not rust?
Aluminum oxide consists of atoms of aluminum and oxygen bonded together. structure changes just enough to become chemically inert and thus unable to react rapidly with additional water molecules or atmospheric oxygen. This change in molecular structure is why aluminum oxide metal resists corrosion.
How do you stop aluminum oxidation?
Clear coating involves the application of a protective layer over the surface of the aluminum. Some aluminum products feature an invisible clear coat layer that protects the metal from the environment. Once applied, the aluminum itself is never exposed to its surrounding environment, thus protecting it from corrosion.
What is the white stuff on aluminum?
Water staining is generally a white powdery substance on the surface of the aluminium but depending on the alloy or amount of oxidation it may have an iridescent appearance. It is caused by the entrapment of moisture between the surfaces of closely packed aluminium. High magnesium alloys produce the most water stain.