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PhreeqC version 2 bugs?



Dave,
 
Is this normal or OK? 
 
When I try to equilibrate Hematite (Fe2O3) in pure water (pH=7, temp=25) using EQUILIBRIUM_PHASES data block, I get the following messages:
 
 

WARNING: Maximum iterations exceeded, 100

Numerical method failed with this set of convergence parameters.

WARNING: Trying smaller step size, pe step size 10, 5 ...

WARNING: Maximum iterations exceeded, 200

Numerical method failed with this set of convergence parameters.

WARNING: Trying diagonal scaling ...

I get input errors when I try to do multiple reactions in NaOH solutions, but runs fine with HCl.  What's going on?

 

...Jim....



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