Cobalt

Essay specific features

 

Issue:

Science

 

Written by:

Joseph K

 

Date added:

February 18, 2014

 

Level:

 

Grade:

A

 

No of pages / words:

2 / 339

 

Was viewed:

9245 times

 

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Essay content:

Cobalt was first found in the Harz Mountains. People in the silver mines dug up arsenic cobalt ores. Then, because they thought the ores contained copper, heated the ores releasing arsenic trioxides. Cobalt was named after the German kobold. A kobold was said to be an underground goblin or demon...
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Cobalt was named after the German kobold. A kobold was said to be an underground goblin or demon. In 1735 cobalt was identified. Cobalt is a white metal with a bluish cast. It is magnetic and very hard and does not tarnish. Cobalt has many uses and I will talk about some of them. It is a very expensive metal that is used in the manufacture of very many expensive alloys...
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