pHSim:

% Simulation for pH process
 Simulates a simple model of a pH process. The process consists of an acid
 (HNO3) stream, buffer (NaHCO3) stream, and base (NaOH) stream that are 
 mixed in a stirred tank. The chemical equilibria is modeled by 
 introducing two reaction invariants for each inlet stream.
 fzero is used to solve the equations for the PH sensor.

  Since version 1.
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  Reference:   List references if applicable
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  See also:    RHSpH, HpH, TimeGUI, Plot2D
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   Copyright (c) 2001 Princeton Satellite Systems, Inc. 
   All rights reserved.
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Children:

Common: Graphics/Plot2D
Common: Graphics/TimeGUI
Math: Integration/RK4