> Are there default values for reactions in KINETICS section of PHREEQC-2? There are a few rates for kinetic reactions defined in the RATES datablocks in the databases (K-feldspar, albite, calcite, pyrite, organic_c, and pyrolusite, in phreeqc.dat). Some of these rates still require some parameters to be entered. Tony Appelo put these rates together from literature values. You invoke these kinetic reactions by including a KINETICS data block with the names of the kinetic reactions that you want and often the formula of the reaction. Unless you only want the few that are predefined, you are going to have to write your own rate expression, using RATES, and your own reaction and possibly parameter values, using KINETICS. David 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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