The Proton Affinity of Water.
PURDUE UNIV LAFAYETTE IND PROJECT SQUID HEADQUARTERS
Pagination or Media Count:
By employing elevated pressures in the ion source of a quadrupole mass filter, it is shown that D3S does not transfer a deuteron to D2O and that D3O transfers a deuteron to D2S. Studies were carried out in most instances under conditions where the reactant ion undergoes 30-60 collisions before reacting. Thus, most excess energy should have been removed. The transfer of deuteron from D3O to D2S appears to go to equilibrium with an equilibrium constant of 14.4 which corresponds to a heat of reaction of 1.8 kcalmole. From this we deduce the proton affinity of water to be 168 kcalmole. Author
- Atomic and Molecular Physics and Spectroscopy