Calcite Dissolution Reaction Output

[priyaiitr]

Hi,

I tried to model calcite dissolution using different calcite rate law.  I can get graph of Ca+2 in solution with time. But, when I use KIN_DELTA("CaCO3")/KIN_TIME, I am getting 0.0 value. Please suggest whats wrong with my attached input file.

Thanks

[dlparkhurst]

You must use the same name that you used in KINETICS and RATES. Perhaps it was something different than "CaCO3".

[priyaiitr]

Hi,

I used same name (calcite1) in User_graph and Selected_output. I can get values of KIN_DELTA(calcite1) but in user_graph its still 0.0. But the strange thing is if in the input file only one rate is there (modifies one) then in user_graph actual values are coming but if I have two rates defined (Both modifies and default database) then in the output graph of modified rate values are coming as 0.0. Please help.

Thanks

[dlparkhurst]

20 graph_y KIN_DELTA("CaCO3")/KIN_TIME

There is no kinetics definition for CaCO3. The KINETICS data block is

KINETICS 2
Calcite

so you must use

20 graph_y KIN_DELTA("Calcite")/KIN_TIME