Just a random thought that may not relate to the problem at hand:
Could altitude be a factor here? Water boils at a lower temperature at high altitude, so the selenium would be harder to dissolve.
Bill
---------- Original Message ----------------------------------
From: Cor Breukel <cor@ruly46.medfac.leidenuniv.nl>
Reply-to: alt-photo-process-l@sask.usask.ca
Date: Wed, 15 Dec 1999 15:15:34 +0100 (MET)
>I think I also boiled for 15 minutes, my notes are at home, I'll contact
>you if I did it differently
>
>Cor Breukel
>http://ruly70.medfac.leidenuniv.nl/~cor/cor.html
>
>
>On Wed, 15 Dec 1999, Kah Heng, Tan wrote:
>
>> Hi Cor
>>
>> Well, in my case, it looks like an awful lot of selenium was left (and I
>> don't want to waste this rather expensive stuff)
>>
>> I boiled it for about 15 minutes.
>>
>> How long did you boil yours for?
>>
>> Thanks
>> Tan
>>
>>
>> At 12:27 PM 12/15/99 +0100, you wrote:
>> >..I recall that you boil it, and most if not all of the selenium soluted,
>> >some was still on the bottom, and I filtered it off (DISPOSE THIS
>> >PROPERLY!).
>>
>
>
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