Re: database

["吉田 泰" <yy@xxxxxxxxxxxxxxx>]

Dear Dr. David Parkhurst

Thank you for your comments!

I checked the logK data for SO2(g), and as you pointed out, this data is wrong.
logK of SO2(g) was derived from NEA data. The result of recalculation is 
-5.3196.... -> -5.32.
This value is same as your database. I will revise this data.

We(JNC) appreciate your comments.
JNC database homepage has not been mature yet, but we try to make the good 
site which gives you useful information for geochemical modelling

thanks,


                YOSHIDA, Yasushi


At 09:26 03/08/20 -0600, you wrote:

> Thanks for the notice of your database. I downloaded the .gz version for
> PHREEQC and was able to use it. However, I think it was an ascii file and
> not in .gz format.
>
> I ran a test problem with all the elements just to see how things looked. I
> made the same run with llnl.dat (distributed with PHREEQC) and enclose both
> for your information. Not surprisingly, the distribution of species is
> quite different. Some differences may bear looking into.
>
> The log K for SO2(G) appears to be in error in your database. I suspect a
> sign error in the derivation of the log K.
>
> Thanks again for the information.
>
> David
>
> (See attached file: all_jnc.out.jnc)(See attached file: all_jnc.out.llnl)
>
>
> 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

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YOSHIDA, Yasushi

Database Development Team
Barrier Performance Group
Waste Isolation Research Division
Waste Management and Fuel Cycle Research Center
Tokai Works
JAPAN NUCLEAR CYCLE DEVELOPMENT INSTITUTE (JNC)
4-33 Muramatsu, Tokaimura, Nakagun, Ibaraki 319-1194, JAPAN
Phone: +81-29-282-1111(EX.2866), Fax: +81-29-282-9295
e-mail: yy@xxxxxxxxxxxxxxx　
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