I looked in phreeqc.dat, wateq4f.dat, llnl.dat, and minteq.dat, and none
have analytical expressions for vivianite, nor can I find any instance of
the number 234.205 in any of the databases. So I'm confused as to where to
locate the error; it looks like it is not in any of the databases that I
distribute.
David
David Parkhurst (dlpark@xxxxxxxx)
U.S. Geological Survey
Box 25046, MS 413
Denver Federal Center
Denver, CO 80225
Project web page: https://wwwbrr.cr.usgs.gov/projects/GWC_coupled
Jasper Griffioen
<j.griffioen@xxx To: David L Parkhurst <dlpark@xxxxxxxx>, Tony Appelo <appt@xxxxxxxxx>
g.tno.nl> cc:
In-Reply-To: <3D33DB4C.F418064B@xxxxxxxxxxx>
Subject: phreeqc-database
07/16/02 02:37
AM
Dear David and Tony,
Herewith I would like to ask your attention for a small mistake in the
PHREEQC database (and maybe other databases as well).
The values for the analytic expression for the solubility of vivianite
should read:
+234.205 0.0 -12,242.6 -92.510
instead of
-234.205 0.0 +12,242.6 +92.510
The reason is presumably that Al-Borno & Tomson (GCA(58/24), 5373-5378)
report the analytic expression for pK instead of logK.
Best regards,
Jasper Griffioen
Please note that some U.S. Geological Survey (USGS) information accessed through this page may be preliminary in nature and presented prior to final review and approval by the Director of the USGS. This information is provided with the understanding that it is not guaranteed to be correct or complete and conclusions drawn from such information are the sole responsibility of the user.
Any use of trade, product, or firm names in this publication is for descriptive purposes only and does not imply endorsement by the U.S. Government.
The URL of this page is:
https://wwwbrr.cr.usgs.gov/projects/GWC_coupled/phreeqc/mail/msg00029.html
Email:dlpark@usgs.gov
Last modified: $Date: 2005-09-13 21:04:21 -0600 (Tue, 13 Sep 2005) $
Visitor number 3104 since Jan 22, 1998.