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Juraj Majzlan

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Everything posted by Juraj Majzlan

  1. Hello GWB team, I have some new thermodynamic data for hydrothermal arsenides measured in our laboratory and I would like to insert them into the GWB database. However, I cannot reproduce the values in this database when using SUPCRT. For example, for the reaction H2AsO3- + 0.5O2,aq = H2AsO4- I get log K(t = 300 C) = 13.65 with SUPCRTTBL (Zimmer et al. 2016) but GWB has log K(t = 300 C) = 11.92. That is a substantial difference. In addition, the SUPCRTTBL database does not contain AsH3(aq). I cannot reproduce the values for loellingite (FeAs2) listed in the GWB database. It would be extremely important, as already mentioned in some other posts, to publish the SUPCRT database that is used to generate the GWB values. Otherwise, adding new data with different parameters for the aqueous species and gases will only cause confusion. Thank you Juro Majzlan
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