04 - Fit Simple Titration

This example corresponds to the an example from Phreeplot manual (Kinniburgh, D., & Cooper, D. (2011). PhreePlot: Creating graphical output with PHREEQC).

This example titrates to obtain a pH solution of 4.5.

Studies

This project contains 2 Studies.

PhreeqcStudy: “study_04 - Fit Simple Titration”

Db used: “wateq4f_dat” database

SOLUTION 1

  pH    7.05

  units mg/L

  water 0.050 kg                                           # c. 50 mL

  Na    6

  K     0.6

  Ca    124

  Mg    1.6

  Cl    11

  Alkalinity 348 as HCO3                                   # titrate this

  S(6)  3 as SO4

  Si    5.8

# could use the Fix_H+ ploy if merely wanted moles required but finding the volume needed is a bit more subtle

REACTION 1

# titrate with <titre> ml of 0.16M HCl

# 1 mL of 0.16M HCl

  HCl   0.16e-3                                            # 0.16 mM HCl

  H2O   55.56e-3

  @{$titre$}@                                                  # this@ parameter is adjusted until pH = pHwanted

END

/n

CeresStudy: “CeresStudy”

Plots

This project contains 1 Plots.

Plot 1: “HfPlotlyPlot”