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Nobelium, Zirconium, and Cobalt
Essay specific features
Written by:
Maria L
Date added:
February 24, 2012
Level:
Grade:
A
No of pages / words:
6 / 1532
Was viewed:
7651 times
Rating of current essay:
Essay content:
Cobalt coloring of ceramics has been known for well over 2,000 years in Persia and Egypt. So it probably went by another unknown name.
B. Discovered in 1735 by George Brandt
1. He was able to show that cobalt was the source of the blue color in glasses, which previously had been attributed to the bismuth found with cobalt...
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The word cobalt comes from the German kobalt or kobold, meaning evil spirit, the metal being so called by miners, because it is poisonous. Other sources cite the origin as stemming from silver miners' belief that cobalt had been placed by kobolds who had stolen the silver. Some also think the name may derive from Greek kobalos, which means 'mine', and which may have common roots with kobold, goblin, and cobalt...
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