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Question
Describe a method for refining nickel.
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Solution
The method for refining nickel involves the following:Ni is heated with CO to form volatile nickel tetracarbonyl.
Ni+4CO330−350K−−−−−−→Ni(CO)4
At high temperature, nickel tetracarbonyl decomposes to pure Ni.
Ni(CO)4450−470K−−−−−−→Ni+4CO
This is Mond's process for refining Ni.
Ni is heated with CO to form volatile nickel tetracarbonyl.
Ni+4CO330−350K−−−−−−→Ni(CO)4
At high temperature, nickel tetracarbonyl decomposes to pure Ni.
Ni(CO)4450−470K−−−−−−→Ni+4CO
This is Mond's process for refining Ni.
Ni+4CO330−350K−−−−−−→Ni(CO)4
At high temperature, nickel tetracarbonyl decomposes to pure Ni.
Ni(CO)4450−470K−−−−−−→Ni+4CO
This is Mond's process for refining Ni.
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