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brucite dissolution/precipitation kinetics
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Topic: brucite dissolution/precipitation kinetics (Read 2303 times)
Cauchy
Contributor
Posts: 8
brucite dissolution/precipitation kinetics
«
on:
24/07/19 17:06 »
hello dear all.
Please I'm looking for Brucite dissolution/precipitation kinetics parameters: constant rate and specific surface at 25°C.
Think you for your help
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dlparkhurst
Global Moderator
Posts: 3957
Re: brucite dissolution/precipitation kinetics
«
Reply #1 on:
24/07/19 17:17 »
Palandri and Kharaka is a place to start. It provides rate parameters and citations.
https://pubs.usgs.gov/of/2004/1068/pdf/OFR_2004_1068.pdf
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Cauchy
Contributor
Posts: 8
Re: brucite dissolution/precipitation kinetics
«
Reply #2 on:
24/07/19 17:28 »
hello,
thank you for your answer but i've already red that paper and the computation seems to have been done at pH=0 while i'm doing my simulation in natural seawater (pH=8.22).
So i'm not sure about that values.
Thanks in advance !!
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John Mahoney
Top Contributor
Posts: 73
Re: brucite dissolution/precipitation kinetics
«
Reply #3 on:
24/07/19 19:28 »
Palandri and Kharaka include neutral pH rate data for brucite that could be used for a start.
Also a newer source of rate data is available at
https://www.or.is/sites/or.is/files/kinetic_database.pdf
Authors are Julien Declercq and Eric Oelkers
it does include newer brucite data. Some is from 2004 and was not cited in Palandri and Kharaka. I have not studied it I will leave that to you.
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Cauchy
Contributor
Posts: 8
Re: brucite dissolution/precipitation kinetics
«
Reply #4 on:
25/07/19 14:03 »
thank you very much Mahoney,
I'll read it and come back to you !
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brucite dissolution/precipitation kinetics