Re: ATM strange tube material

["Bill Prewitt" <bprewitt@neo.rr.com>]

That's probably selenium - it's poisonous
I don't know of a safe way to remove it.

Acid could liberate Hydrogen selenide - very nasty stuff
http://www.mathesongas.com/msds/HydrogenSelenide.htm
http://www.hse.gov.uk/pubns/chan13.htm

          Bill Prewitt

My webpage of telescope making and caving
http://www.astrocaver.com




> 
> Hi,
> 
> I recently had the opportunity to take apart a large old Xerox machine for
> parts. one of the parts I found was a 3 3/4 inch diameter X 16" aluminum
> tube that I thought would be great for a finder scope that I am planning.
> However, the tube seems to be coated with a dull metallic material, and in
> addition, there was a warning sticker on the interior of the tube.  I am
> concerned that this material may be toxic, and I am not going to use the
> tube unless I can get some more information about it.  Any thoughts would be
> greatly appreciated
> 
> Thank You,
> 
> James Meenan
> 
> 
> 
>