Cheri,

The electron microscopy supply companies are the usual places for 
uranyl salts. These are Biological Stain Commission certified, but 
they are the pure (or nearly) powders.
Electron Microscopy Supplies
http://www.emsdiasum.com/microscopy/products/chemicals/tannic.aspx

Structure Probe, Inc. aka SPI
http://www.2spi.com/catalog/chem/stain.shtml

Also, regular chemical companies like Sigma-Aldrich have uranyl nitrate.
http://www.sigmaaldrich.com/catalog/search/SearchResultsPage/PricingAvailability/FLUKA;94270

Phil

>Who uses Snook's method for their retic stain??  If you do where do you get
>your uranium nitrate?? I ask Rowley and they don't supply it anymore because
>of it's hazards??  Am I missing something???
>
>Cheri Miller HT ASCP
>
>Histology Supervisor
>Physicians Laboratory Services, Inc.
>
>Omaha, NE 68117
>
>402 738 5052
-- 
Philip Oshel
Microscopy Facility Supervisor
Biology Department
024C Brooks Hall
Central Michigan University
Mt. Pleasant, MI 48859
(989) 774-3576

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