Rudy: I've used a solution made up of conc reagent grade; alcohol 100ml +
ammonia 50ml +  dimethylglyoxime 2gm.
Do a drop or spot test on the plating sample. If nickel is present a pink to
red fleck of Ni-dimethylglyoxime will form.
Rubbing with filter paper will help bring out the color, as it is hard to
see against the Au.


Regards

Michael Barmuta

Staff Engineer

Fluke Corp.

Everett WA

$25-356-6076


-----Original Message-----
From: Rudy Sedlak [mailto:[log in to unmask]]
Sent: Wednesday, April 10, 2002 6:25 PM
To: [log in to unmask]
Subject: [TN] Nickel Test


I recall seeing a spot test for Nickel that involved using a solution of
Dimethylglyoxime in dilute Ammonia, + ???? as a spot test for gold porosity
to show presence of Nickel.

Does anyone have the exact details of this test?  Does anyone know if it
works on Electroless Nickel?  (Suspect it may not because EN is so much more
passive.)

Rudy Sedlak
RD Chemical Company

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