[meteorite-list] How to test for nickel

From: Paul G. Spears <pgspears_at_meteoritecentral.com>
Date: Fri, 11 Mar 2011 22:54:08 -0700
Message-ID: <86F644C55CAC4AFD971142BB4928C355_at_GrandpasNetbook>

When testing for nickel using 1% dimethylglyoxine and 10% ammonium
hydroxide, is the dimethyl applied thoroughly first to a clean section of
the specimen, then the applicator dipped into the ammonia and examined a
minute or so later? My instructions have walked away, and it has been some
time since I last conducted a test. How long do these chemicals remain
effective when stored in a dark area, in dark glass, at room temperature?

Keep looking up!
Paul
Received on Sat 12 Mar 2011 12:54:08 AM PST