skip to main content
OSTI.GOV title logo U.S. Department of Energy
Office of Scientific and Technical Information

Title: Kinetics of oxygen exchange between bisulfite ion and water as studied by oxygen-17 nuclear magnetic resonance spectroscopy

Abstract

The nuclear magnetic relaxation times of oxygen-17 have been measured in aqueous sodium bisulfite solutions in the pH range from 2.5 to 5 as a function of temperature, pH, and S(IV) concentration, at an ionic strength of 1.0 m. The rate law for oxygen exchange between bisulfite ion and water was obtained from an analysis of the data, and is consistent with oxygen exchange occurring via the reaction SO/sub 2/ + H/sub 2/O right reversible H/sup +/ + SHO/sub 3//sup -/. The value of k/sub -1/ is in agreement with relaxation measurements. Direct spectroscopic evidence was found for the existence of two isomers of bisulfite ion: one with the proton bonded to the sulfur (HSO/sub 3//sup -/) and the other with the proton bonded to an oxygen (SO/sub 3/H/sup -/). (The symbol SHO/sub 3//sup -/ in the above chemical equation refers to both isomeric forms of bisulfite ion.) The relative amounts of the two isomers were determined as a function of temperature, and the rate and mechanism of oxygen exchange between the two was investigated. One of the two isomers, presumably SO/sub 3/H/sup -/, exchanges oxygens with water much more rapidly than does the other. A two-pulse sequence was developedmore » which greatly diminished the solvent peak in the NMR spectrum.« less

Authors:
Publication Date:
Research Org.:
Lawrence Berkeley Lab., CA (USA)
OSTI Identifier:
6507790
Report Number(s):
LBL-18297
ON: DE85001866
DOE Contract Number:  
AC03-76SF00098
Resource Type:
Technical Report
Resource Relation:
Other Information: Thesis
Country of Publication:
United States
Language:
English
Subject:
37 INORGANIC, ORGANIC, PHYSICAL AND ANALYTICAL CHEMISTRY; OXYGEN 17; ISOTOPIC EXCHANGE; AQUEOUS SOLUTIONS; ISOMERS; NUCLEAR MAGNETIC RESONANCE; PH VALUE; RELAXATION; SPECTRA; SULFITES; WATER; DISPERSIONS; EVEN-ODD NUCLEI; HYDROGEN COMPOUNDS; ISOTOPES; LIGHT NUCLEI; MAGNETIC RESONANCE; MIXTURES; NUCLEI; OXYGEN COMPOUNDS; OXYGEN ISOTOPES; RESONANCE; SOLUTIONS; STABLE ISOTOPES; SULFUR COMPOUNDS; 400203* - Isotope Exchange & Isotope Separation- (-1987)

Citation Formats

Horner, D.A. Kinetics of oxygen exchange between bisulfite ion and water as studied by oxygen-17 nuclear magnetic resonance spectroscopy. United States: N. p., 1984. Web. doi:10.2172/6507790.
Horner, D.A. Kinetics of oxygen exchange between bisulfite ion and water as studied by oxygen-17 nuclear magnetic resonance spectroscopy. United States. doi:10.2172/6507790.
Horner, D.A. Wed . "Kinetics of oxygen exchange between bisulfite ion and water as studied by oxygen-17 nuclear magnetic resonance spectroscopy". United States. doi:10.2172/6507790. https://www.osti.gov/servlets/purl/6507790.
@article{osti_6507790,
title = {Kinetics of oxygen exchange between bisulfite ion and water as studied by oxygen-17 nuclear magnetic resonance spectroscopy},
author = {Horner, D.A.},
abstractNote = {The nuclear magnetic relaxation times of oxygen-17 have been measured in aqueous sodium bisulfite solutions in the pH range from 2.5 to 5 as a function of temperature, pH, and S(IV) concentration, at an ionic strength of 1.0 m. The rate law for oxygen exchange between bisulfite ion and water was obtained from an analysis of the data, and is consistent with oxygen exchange occurring via the reaction SO/sub 2/ + H/sub 2/O right reversible H/sup +/ + SHO/sub 3//sup -/. The value of k/sub -1/ is in agreement with relaxation measurements. Direct spectroscopic evidence was found for the existence of two isomers of bisulfite ion: one with the proton bonded to the sulfur (HSO/sub 3//sup -/) and the other with the proton bonded to an oxygen (SO/sub 3/H/sup -/). (The symbol SHO/sub 3//sup -/ in the above chemical equation refers to both isomeric forms of bisulfite ion.) The relative amounts of the two isomers were determined as a function of temperature, and the rate and mechanism of oxygen exchange between the two was investigated. One of the two isomers, presumably SO/sub 3/H/sup -/, exchanges oxygens with water much more rapidly than does the other. A two-pulse sequence was developed which greatly diminished the solvent peak in the NMR spectrum.},
doi = {10.2172/6507790},
journal = {},
number = ,
volume = ,
place = {United States},
year = {Wed Aug 01 00:00:00 EDT 1984},
month = {Wed Aug 01 00:00:00 EDT 1984}
}

Technical Report:

Save / Share: