Deuterium Isotope Effects, ΔpK = pKD2O – pKH2O, on the Second Dissociation of Carbonic Acid by Raman Spectroscopy
37th Annual CNS-CNA Student Conference - 2013 June 11


Presented at:
37th Annual CNS-CNA Student Conference
2013 June 11
Location:
Toronto, Canada
Session Title:
Student Conference Session

Authors:
John Noel (University of Guelph)
Lucas Applegarth (University of Guelph)
Peter Tremaine (University of Guelph)
  

Abstract

Polarized Raman spectroscopy has been used to measure the deuterium isotope effect, ∆pK = pKD2O– pKH2O, for the second ionization constant of carbonic acid in the temperature range of 25 oC to 125 oC, CO3-2+ D2O ⇋ DCO3- + OD-. Results for the light water pK dependence on temperature were compared to literature, confirming the reliability of the method. 

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