[Date Prev][Date Next][Thread Prev][Thread Next][Date Index][Thread Index]

PHREEQC



Dear David L Parkhurst,

I want to simulate pure water in equilibrium with atmosphere (see example
below).

When I run the example I get a reduction of pH from 7 to 2.

Where is my mistake?

PS: Is there any discussing group of PHREEQC

Best regards

Pedro Chambel Leitao
~~~~~~~~~~~~~~~~~~~~~~~~~~
IST - MARETEC
Taguspark
Nucleo Central, Sala 363
2780-920 Oeiras, Portugal
Tel.: +351 21 4239016
Fax:  +351 21 4211272
URL:  http://www.mohid.com



TITLE Test
SOLUTION 1 Seawater
    temp      25
    pH        7
    pe        18
    redox     pe
    units     mol/l
    density   1
    -water    1 # kg
GAS_PHASE 1 Atmosphere
    -fixed_pressure
    -pressure 1
    -volume 1
    -temperature 25
    CO2(g)    0.0003
    O2(g)     0.2
    N2(g)     0.7797
SAVE solution 1
END

-----Original Message-----
From: David L Parkhurst [mailto:dlpark@xxxxxxxx]
Sent: quarta-feira, 21 de Maio de 2003 14:47
To: Pedro Chambel Leitao
Subject: Re: subscribe


Ok. Your name will be added to the PHREEQC mailing list.




Project Home Page
Complete Water Resources Division Software
USGS Home Page
Water Resources Division Home Page
NRP Home Page
Help Page
USGS Privacy Statement       

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/msg00638.html
Email:dlpark@usgs.gov
Last modified: $Date: 2005-09-13 21:04:21 -0600 (Tue, 13 Sep 2005) $
Visitor number 2223 since Jan 22, 1998.