I have recently used DMG and nickel allergy test (from Dermadoctor) with
success, even in low metal Chrondrites.
I was supposed to use 99,9% denatured alcohol, but 96% was Ok and a lot
cheaper. Instead muriatic acid I use acetic (vinegar) acid, with good
results (even vinegar worked fine).
And ...of course selfmade test was 50 times cheaper than pre-made nickel
tests.
My 2 cents,
Paco Ocaña
Madrid, Spain
John.L.Cabassi escribió:
G'Day List
A while back some members were interested in DMG. A good friend of
mine informed me that he had excess, so if anybody is still
interested, you can email me off-list and I will forward you his email
address and you can deal with him directly.
Quote:
"I have quite a bit of DMG I bought not realizing how far a little
will go. So I am offering some of my surplus for those who wish to
make their own nickel test kits. I will measure them out in 2 gram
packets of DMG powder, which will make 200ml of DMG solution. Just
dissolve the DMG powder in 200ml of denatured alcohol, available in
hardware stores. The hydrochloric acid needed to ionize the nickel in
stone meteorites is also available in hardware stores as muriatic or
pool acid, or in pool stores. And the ammonium hydroxide can be
purchased in any grocery store, or retail store. This will save you a
lot of money over buying pre-made nickel test kits. I will write up an
instructional paper to include with the DMG powder packets"
Thanks for your time.
Cheers, Johnno
______________________________________________
http://www.meteoritecentral.com
Meteorite-list mailing list
[email protected]
http://six.pairlist.net/mailman/listinfo/meteorite-list
