Accession Number : AD0730471

Title :   The Proton Affinity of Water.

Descriptive Note : Technical rept.,

Corporate Author : PURDUE UNIV LAFAYETTE IND PROJECT SQUID HEADQUARTERS

Personal Author(s) : Chong,Shuang-Ling ; Myers,Ransom A. , Jr. ; Franklin,J. L.

Report Date : SEP 1971

Pagination or Media Count : 15

Abstract : 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 kcal/mole. From this we deduce the proton affinity of water to be 168 kcal/mole. (Author)

Descriptors :   (*HEAVY WATER, *PH), IONS, SULFIDES, SOLUTIONS, PROTONS, CHEMICAL EQUILIBRIUM, MASS SPECTROSCOPY

Subject Categories : Atomic and Molecular Physics and Spectroscopy

Distribution Statement : APPROVED FOR PUBLIC RELEASE