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VMINTEQ 3.1: How to add OH- species?

  1. Dec 9, 2016 #1
    I'm using the free version of VMINTEQ 3.1 and I want to simulate titration with NaOH as the titrant, but I could not find OH- on the list. Can anyone teach me how? Thanks!
  2. jcsd
  3. Dec 9, 2016 #2


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    Staff: Mentor

    I haven't used MINTEQ in ages, but I don't think you can use just OH-, it needs a counterion.
  4. Dec 9, 2016 #3
    Ah I figured it out! Apparently OH- is represented by a negative value of the H+. But thanks for the reply!
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