Re: [Phys-l] Lead Brick

[Bernard Cleyet <bernardcleyet@redshift.com>]

I wouldn't, arsenic is even more poisonous than lead.

"Arsenic hardens lead, and is used in alloys for making lead shot and  
in lead-acid battery plates**. It is also said to make lead shot more  
spherical, when made the old way in a shot tower."

http://mysite.du.edu/~jcalvert/phys/arsenic.htm



** http://www.keytometals.com/Article88.htm



bc warned when given lead sheets surplussed by SLAC that they are  
hardened by Cd or Sb and therefore, more poisonous.









On 2009, Oct 15, , at 14:34, David Willey wrote:

> To make lead counterweights for my trebuchet I melted lead pellets  
> used
> for reloading shotgun shells. You can buy bags of them at Gander
> mountain, or another sporting goods store. All the usual precautions
> about fumes of course apply,
> cheers,
> David
> P.S. I use the same source for lead to melt and dip my fingers in,  
> it's
> a strange way to make a living....
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