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

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Title

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

Creator

  • Author: Horner, D.A.
    Creator Type: Personal

Publisher

  • Name: Lawrence Berkeley Laboratory
    Place of Publication: Berkeley, California
    Additional Info: Lawrence Berkeley Lab., CA (USA)

Date

  • Creation: 1984-08-01

Language

  • English

Description

  • Content Description: 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.
  • Physical Description: Pages: 232

Subject

  • Keyword: Dispersions
  • Keyword: Water
  • Keyword: Relaxation
  • Keyword: Oxygen Isotopes
  • Keyword: Ph Value
  • Keyword: Isotopes
  • Keyword: Spectra
  • Keyword: Even-Odd Nuclei
  • Keyword: Light Nuclei
  • Keyword: Oxygen 17
  • Keyword: Stable Isotopes
  • Keyword: Resonance
  • Keyword: Nuclei
  • Keyword: Aqueous Solutions
  • Keyword: Solutions
  • Keyword: Sulfites
  • Keyword: Oxygen Compounds
  • Keyword: Isotopic Exchange
  • Keyword: Magnetic Resonance
  • STI Subject Categories: 37 Inorganic, Organic, Physical And Analytical Chemistry
  • Keyword: Sulfur Compounds 400203* -- Isotope Exchange & Isotope Separation-- (-1987)
  • Keyword: Hydrogen Compounds
  • Keyword: Nuclear Magnetic Resonance
  • Keyword: Isomers
  • Keyword: Mixtures

Source

  • Other Information: Thesis

Collection

  • Name: Office of Scientific & Technical Information Technical Reports
    Code: OSTI

Institution

  • Name: UNT Libraries Government Documents Department
    Code: UNTGD

Resource Type

  • Report

Format

  • Text

Identifier

  • Other: DE85001866
  • Report No.: LBL-18297
  • Grant Number: AC03-76SF00098
  • DOI: 10.2172/6507790
  • Office of Scientific & Technical Information Report Number: 6507790
  • Archival Resource Key: ark:/67531/metadc1210122

Note

  • Display Note: NTIS, PC A11/MF A01.
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