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:
Last modified: $Date: 2005-09-13 21:04:21 -0600 (Tue, 13 Sep 2005) $
Visitor number 1715 since Jan 22, 1998.