raney nickel


by Entropia
Tags: nickel, raney
Entropia
Entropia is offline
#1
Nov18-03, 02:59 AM
P: 142
What *is* raney nickel? And, what different kinds of "raney nickel" are there?
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Bystander
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#2
Nov18-03, 04:22 AM
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PF Gold
P: 1,382
Raney Ni is "finely divided" Ni, prepared not by grinding to a fine powder (entirely too coarse, and oxidized), but chemically by dissolving more active metals from Ni containing alloys --- leaves just the Ni, lots of surface area with a definite physical and chemical history for catalytic purposes. There may also be electrolytic methods, analogous to platinization, but I'm not aware of any common ones.


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