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Subject: aerosol can storage
Date: Tue, 2 Sep 2003 11:09:38 -0600
Author: "Greene, Ben" 		Next by Date:
Subject: Re: Sodium azide solutions
Date: Fri, 5 Sep 2003 09:55:16 -0500
Author: "Shields, Jefry (JE)"


Date: Fri, 5 Sep 2003 10:45:41 -0400
Reply-To: "Ralph Stuart, University of Vermont" <rstuart**At_Symbol_Here**uvm.edu>
Sender: DCHAS-L Discussion List <DCHAS-L**At_Symbol_Here**LIST.UVM.EDU>
From: "Ralph Stuart, University of Vermont" <rstuart**At_Symbol_Here**uvm.edu>
Subject: Sodium azide solutions
Comments: To: SAFETY**At_Symbol_Here**LIST.UVM.EDU


Has anyone tried to define the line between a "non-hazardous" and
"hazardous" solution of sodium azide? The Laboratory Chemical Safety
Summary in Prudent Practices seems to address only the solid form.

We have many people using it at millimolar levels to control
biological activity in nutrient solutions. I don't believe that this
use presents a toxicity hazard for chemical hygiene plan purposes.
However, the natural question is "Is it only the solid form of sodium
azide that is potentially toxic, either acutely or chronically?" "At
what concentration would the toxicity concern become neglible?"

Thanks for any insight on this.

- Ralph
--

Ralph Stuart, CIH
Environmental Safety Manager
University of Vermont
Environmental Safety Facility
667 Spear St.
Burlington, VT   05405

rstuart**At_Symbol_Here**uvm.edu
fax: (802)656-5407

Owner:
SAFETY list (general discussion of environmental health and safety)
LAB-XL list (performance oriented environmental regulation of laboratories)

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