An addition to Steven Howe's message re Sodium Polytungstate vendors:

There is another company in Germany:

TC-Tungsten Compounds
Dr. Rainer Kamps
Tannenweg 2
D - 96271 Grub am Forst
tel: (49) 9560-742
fax: (49) 9560-1707

Costs are (as of April 1997):
1 liter (2.8 kg)   DM 616,-/1 liter
10 liters (28 kg)   DM  5.600,-/10 liters
(they sell powder or liquid)
Airfreight to e.g. Toronto is DM 12,-/liter


They are the "original" company behind the US firm "Geoliquids", -  Geoliquids
purchases their material from them.  Both offer liquid and powder!

Geofluid charges (April 1997):
$US 112.00/lb powder or $US 108.00 liquid  (up to 25 lb)
$US 104.00/lb powder or $US   99.00 liquid (25 to 99 lb)
$US   97.00/lb powder or $US   94.00 liquid (100 lb lots)


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Dr. Karen Ziegler                           *tel/dept.: (++)519-661-3187
Lab. for Stable Isotope Studies     *tel/lab: (++)519-661-3881
Dept. of Earth Sciences                 *tel/office: (++)519-661-3896
University of Western Ontario      *fax: (++)519-661-3198
London,  Ont./Canada N6A 5B7     *e-mail: [log in to unmask]
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