There have been a number of responses to the recent query re
sodium polytungstate.

I would like to draw peoples attention to an alternative called LST
which we have found to be more useful in mineral separation. The
main advantage of LST, in our experience, is the much lower
viscosity relative to sodium polytungstate.

Anybody wanting more information should check out the web site
of Central Chemical Consulting at www.chem.com.au
Alternatively, their email address is [log in to unmask]

Hope this helps
   Bruce
Dr Bruce Eglington
Council for Geoscience
Private Bag X112
Pretoria
0001
South Africa
e-mail : [log in to unmask]
tel : +27-12-841-1344
fax : +27-12-841-1278