RE: uranyl nitrate


This is also a material used in Electron Microscopy for staining.  I would check with an EM laboratory in the Dayton or Ohio area and see how they handle the material as for as radiation safety.  Generally it is not a bad idea to have someone in your laboratory trained for handling radioactivity as they can answer the questions and handle the material better.  It does sound like you safety people are a little paranoid about radioactivity even at the lowest levels.  We sell to EM laboratories and always tell them to check with in-house, local, state and Federal regulations for handling.  Every area seems to have a different idea and only the Feds are clear, sort of.   Pam Marcum
-----Original Message-----
From: Vinnie Della Speranza []
Sent: Monday, July 15, 2002 11:47 AM
Subject: Re: uranyl nitrate

I do not claim to be an expert on this but I do not believe that this material requires radiation precautions. However, it is considered to be a highly toxic compound and a potential carcinogen (Merck Index) which is the concern when working with it. Your safety people should be able to determine that this material does not require radiation precautions.
Vinnie Della Speranza
Manager for Anatomic Pathology Services
Medical University of South Carolina
165 Ashley Avenue  Suite 309
Charleston, SC 29425
Ph: 843-792-6353
fax: 843-792-8974

>>> Linda Smith <> 07/15/02 11:13AM >>>
I need some help with a safety issue concerning 1% aqueous uranyl nitrate used in a Steiner stain.  Does any one have any documentation from any regulatory agency on it's safety and use in the lab?
Our safety people want to post radiation signs all over the place and send everyone to radiation safety training.
Thanks in advance.
Linda Smith, HT (ASCP)
Department of Pathology
Children's Medical Center
Dayton, Ohio
(937) 641-3358

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