Example Essays Home
FAQ
Acceptable Use Policy
Tech Support
LOG IN!
Click HERE for Instant Access
 
This is a free preview of the paper.
Join Now
Log In
  

Aluminum

The Romans used various aluminum compounds as astringents; they called them alum. The earliest Romans and Greeks used alum as an acerbic in dyeing. Sir Humphry Davy and other chemists in the early 19th century recognized aluminum in 1825, but Friedrich Wohler had more success and is usually credited with its first isolation, in 1827. H.E. Sainte-Claire Deville first prepared inexpensive pure metal in 1854 and set about perfecting a process for its commercial production. Yet, in 1886 the process by which aluminum is produced today was discovered independently by C.M. Hall, a student at Oberlin College, and Paul Heroult, a French metallurgist.

Aluminum is a silvery-white metal with a face centered cubic crystalline structure. It is a member of group IIIa of the periodic table. The symbol is Al; atomic number is 13; atomic weight is 26.98154; it’s state at room temperature, 298 K, is a solid. The electron configuration is [Ne]. 3s2.3p1. The Shell structure for aluminum is: 2.8.3. Aluminum is ductile, malleable, as well as an excellent conductor of heat and electricity. The metal is soft but becomes stronger and harder when alloyed. It is the most abundant metal in the earth’s crust; 8% by weight,


Aluminum is a very important element not only for the periodic table but also for our everyday life. There are also many more uses than that of which I have listed.

In the third section of this paper I will discuss ten compounds formed from aluminum and give their formula. The first is 1) Sodium Aluminate the formula for this is Al2O2Na4. Sodium aluminate solution is an alkaline source of high-purity it is used for clarifying aid for raw-water and sewage treatment. It is also a pitch control and sizing agent in pulp and paper productions. It is manufactured in two forms, stabilized and un-stabilized. The next compound is 2) Aluminum borate the formula is AlBO3. This compound forms crystal structures and is a solid. The third compound is 3) Aluminum chloride AlCl3. The physical state is a white to gray powder. It reacts very violently with water. Next is 4) Aluminum hydroxide Al(OH)3. This compound is white or colorless with shades of gray, blue, and green. This is also in the form of a crystal. The next compound is 5) Aluminum nitrate AlNO3, the appearance of this compound is a white crystal and is a solid in its physical state. Next is 6) Aluminum oxide Al2O3; it is a solid in its physical state and highly variable. The color can be white or colorless, blue, red, yellow, green, brown, purple, and pink; there are also instance of color differences. Next is 7) Aluminum Phosphates AlH3O4P. This compound is also a solid and has a very fine texture. The next compound is 8) Aluminum silicate Al2O5Si. Aluminum silicate is a solid and is a polymorph with two other minerals; kyanite and sillimanite. The next compound is 9) Aluminum phosphide AlP5. This compound is used many times in solid form as a pesticide and is ill

Some topics in this essay:
Heroult French, Al2O2Na4 Sodium, Foil Aluminum, Sulfate Al2SO43, Edition Aluminum, Ray Tube, Al2O5Si Aluminum, Sainte-Claire Deville, Phosphates AlH3O4P, Aluminum Romans, sewage treatment, sodium aluminate, aluminum silicate, 1 sodium aluminate, solid physical, section paper, white colorless, compound white, aluminum oxide, compounds formed aluminum, 5 aluminum, 6 aluminum,

Join now to see the rest of the essay!
Approximate Word count = 1175
Approximate Pages = 5 (250 words per page double spaced)


  

More Essays on Aluminum


Professional Papers:
Workplace Changes at Alcoa Aluminum2150 words
Alcoa Aluminumamp39s Workplace Structure2150 words
Video Game Disc Information949 words
Eurostep1279 words
Science1155 words
Several Science Topics1155 words



Student Written Papers:
Aluminum528 words
Aluminum1175 words
Aluminum1603 words
Aluminum News574 words
Aluminum Bat Manufacturing861 words

Look at even more essays on Aluminum
More Science Essays

Join Now
(Credit Card)
Join Now
(Online Check)
Join Now
(Phone 1-900)



CUSTOMER SERVICES




Acceptance Essays
Arts
Custom Essays
English
Foreign
History
Miscellaneous
Movies
Music
Novels
People
Politics
Religion
Science
Sports
Technology
Book Notes

 

 


All papers are for research and references purposes only!
Copyright © 2002-2009 ExampleEssays.com DMCA
Saved Papers