Date:
Tue, 16 May 2006 11:05:02 -0600
MIME-version:
1.0 (Apple Message framework v623)
Content-type:
text/plain; format=flowed; charset=ISO-8859-1
Content-Transfer-Encoding:
8bit
|
Kristine,
I think there's a nice paper in Pier de Groot's book, which you may
want to refer to. But, basically, you need to adjust the pH to between
3 & 4, thereby preventing any bicarbonate [let alone carbonate] species
from being present in the water. You should get a carbonate-free
precipitate that way.
On May 15, 2006, at 3:00 PM, Kristine Nielson wrote:
> Under what conditions does BaCO3 precipitate? I ask because a while
> ago I tried precipitating BaSO4 from gulf of mexico porewaters and had
> a coprecipitate with carbon in it (at least, that's what the EA told
> me), but everyone I asked claimed BaCO3 shouldn't precipitate at all.
> I'm rather relieved to know the compound at least exists, and would be
> grateful for any information on how and where it forms.
>
> Thanks,
>
> Kristine
--
*************************************************************
Steve Nelson
Associate Professor
Dept. of Geological Sciences
S-389 ESC
Brigham Young University
Provo, UT 84602
801-422-8688
"Guns don't kill people, Dick Cheney kills people."
**************************************************************
Disclaimer for the feeble-minded: It should be painfully obvious, but
the identification of my affiliation with Brigham Young University does
not imply that the University endorses any political or otherwise
partisan content of this message.
|
|
|