Date: Thu, 19 Aug 2010 13:19:23 -0400
Reply-To: DCHAS-L Discussion List <DCHAS-L**At_Symbol_Here**LIST.UVM.EDU>
Sender: DCHAS-L Discussion List <DCHAS-L**At_Symbol_Here**LIST.UVM.EDU>
From: David Roberts <droberts**At_Symbol_Here**DEPAUW.EDU>
Subject: Re: Thorium Dioxide
In-Reply-To: <3077C42C2FC2AB46A59B474119A945910A2D37**At_Symbol_Here**>

Thorium dioxide is a powder, just like thorium nitrate (or other thorium compounds).  It is not pyrophoric - but it is radioactive.  I'm sure it has other issues - just answering the pyrophoric part.


On 8/19/2010 1:05 PM, William Munsey wrote:

I have never personally worked with this compound.  A Google search turns up several material safety data sheets.  The three at which I looked that mentioned anything about flammability described thorium dioxide as non-flammable.

From: DCHAS-L Discussion List [mailto:DCHAS-L**At_Symbol_Here**] On Behalf Of Johnson, Amy Carr
Sent: Thursday, August 19, 2010 12:04 PM
To: DCHAS-L**At_Symbol_Here**LIST.UVM.EDU
Subject: [DCHAS-L] Thorium Dioxide

Can anyone tell me if thorium dioxide is pyrophoric?  I know that powdered thorium is.

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