Re: Thorium Oxide - Where could I buy small quantity?

From: Dirk Bruere at Neopax (dirk_at_neopax.com)
Date: 11/16/04 

Date: Tue, 16 Nov 2004 11:30:50 +0000

Boris Mohar wrote:

> On 15 Nov 2004 16:45:23 -0800, kayalla@bol.com.br (Mr. Marcio Moraes) wrote:
>
>
>>Hello
>>
>>I am developing medium pressure mercury lamps and in order to protect
>>the electrodes and increase its life it is necessary to coat them with
>>thorium oxide.
>>
>>In Brazil it is not easy to find this material. Could some one tell me
>>where could I buy small quantities, in powder, of thorium oxide?
>>
>
>
> This is a long shot since I do not know the size of your electrodes, try
> using some thoriated TIG welding rods.

Are gas mantles still made of Thorium Oxide? 

-- 
Dirk
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