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Cobalt
Beginning of Essay
My report is about the element . is the 27th element on the
periodical table and has an atomic number of twenty-seven. It has a symbol of
Co. ¹s atomic weight is 58.9332. It has a melting point of 1,490š C. and
a boiling point of 2,900š C. looks almost e .... Middle of Essay
.... special magnetic properties. For
example, Hyperco is used as the nucleus in strong electromagnets. Alloys
containing titanium, aluminum, cobalt and nickel can be made to become
permanently magnetic. One alloy, called Stellite, is an alloy of cobalt,
chromium, tungsten, and molybdenum. This alloy is extremely hard and keeps its
hardness at extreme temperatures. It has many uses: cutting tools are made of
it along with gas turbines. Zaire is the world¹s largest producer of cobalt
with 65% of the world¹s reserve.
Cobalt is a common trace element found in food. It is a component of
vitamin B12. It is important to our health. But excessive a ....
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Words: 332 - Pages: 2
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