LHcheM - 3-12-2011 at 21:54
I just accidentally poured some KBH4/NaOH solution into a solution of Nickle (II) sulphate, then the green precipitate appeared as expected, but then
after a few seconds, the precipitate turned black, with Hydrogen bubbling out from solution.
So is the grey-black powder Nickel metal?
unionised - 4-12-2011 at 03:30
Could be nickel boride which gets a mention here
http://en.wikipedia.org/wiki/Nickel(II)_chloride
KrysHalide - 4-12-2011 at 04:31
Definitevly Ni Boride!! That's a method of choice for it's preparation. It decomposes the remaining BH4- into H2...
LHcheM - 4-12-2011 at 05:18
Oh I never thought of that! Nickel Boride! Thanks!!!
A useful reagent for Organic reactions 