Diffraction studies of ion--water interactions

Conference · Sun Jan 01 04:00:00 EST 1978

OSTI ID:6515089

Narten, A H; Triolo, R

Ionic solutions were among the first liquids to which x-ray diffraction was applied, and a large number of studies have been reported over the years. However, the interpretation of a single diffraction pattern is always difficult, often ambiguous, and never unique. This ambiguity of interpretation is greatly reduced if a solution is studied with several types of radiation (x-ray, neutron, electron), and a few such studies have been reported. The only currently feasible way of uniquely determining the correlations between water molecules and monatomic ions in solution is to vary the scattering factor of the ion; a simple difference measurement then yields the ion-water correlations. This has been done using the isotopic substitution method in neutron diffraction. It can also be done using synchrotron x-radiation and anomalous dispersion techniques. Diffraction studies of ion-water interactions have yielded detailed and unambiguous information for only a few concentrated solutions. 5 figures.

• Research Organization: Oak Ridge National Lab., TN (USA)
• DOE Contract Number: W-7405-ENG-26
• OSTI ID: 6515089
• Report Number(s): CONF-780950-1
• Country of Publication: United States
• Language: English

Related Subjects

37 INORGANIC, ORGANIC, PHYSICAL, AND ANALYTICAL CHEMISTRY
400201* -- Chemical & Physicochemical Properties
ALKALI METAL COMPOUNDS
AQUEOUS SOLUTIONS
CHARGED PARTICLES
CHLORIDES
CHLORINE COMPOUNDS
COHERENT SCATTERING
CORRELATIONS
DIFFRACTION
DISPERSIONS
HALIDES
HALOGEN COMPOUNDS
HEAVY WATER
HYDROGEN COMPOUNDS
IONS
ISOTOPES
MIXTURES
NEUTRON DIFFRACTION
OXYGEN COMPOUNDS
SCATTERING
SODIUM CHLORIDES
SODIUM COMPOUNDS
SOLUTIONS
WATER