Conference Proceedings Paper
Deuterium Isotope Effects on Acid Ionization and Transition Metal Hydrolysis at Reactor Conditions by Raman Spectroscopy
32nd Annual CNS Conference - 2011 June 05-08
Michael Yacyshyn (University of Guelph)
Melerin Madekufamba (University of Guelph)
Peter Tremaine (University of Guelph)
This paper reports the preliminary measurements from an experimental study to measure the small differences between light (H2O) and heavy (D2O) water under reactor operating conditions (250-300 oC, 10 MPa), using Raman spectroscopy. The deuterium isotope effect
DpK = pKD2O – pKH2O, for sodium bisulphate NaDSO4 and phosphoric acid D3PO4, has now been determined at temperatures of 25 oC and 80 oC by measuring the isotropic Raman spectra at different concentrations. The results for the pK and ΔpK at 25 oC agree with the literature, confirming the reliability of the method. High temperature cells have been constructed.
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