Accession Number : AD0639218

Title :   INTERFACIAL WATER STRUCTURE: THE ELECTRICAL CONDUCTIVITY OF AQUEOUS ELECTROLYTE PERMEATED PARTICULATE SOLIDS UNDER HYDROSTATIC PRESSURE.

Descriptive Note : Technical rept.

Corporate Author : LITTLE (ARTHUR D) INC CAMBRIDGE MASS

Personal Author(s) : Horne,R. A. ; Day,A. F. ; Young,R. P. ; Yu,N. T.

Report Date : 30 SEP 1966

Pagination or Media Count : 32

Abstract : Comparison of the temperature and pressure dependencies of the relative electrical conductivity of aqueous 0.10M KCl solutions and particulate solids permeated with these solutions shows that the water near an interface is structured and that this structured region tends to exclude electrolyte thereby increasing the concentration of the solution at some greater distance from the interface - a conclusion confirmed by simple elution experiments. This water structure near interfaces is more stable with respect to both temperature and pressure and thus presumably different from the structure in bulk liquid water. Two water structural forms are proposed; the one forms the substance of the Frank-Wen clusters, the hydration atmospheres of ions, and polar groups; the second forms the substance of water structure near interfaces, the hydration atmosphere of hydrophobic groups and materials including the quaternary amine ions, and the hydration crust of the hydrophobic segments of biopolymers. (Author)

Descriptors :   (*WATER, *MOLECULAR ASSOCIATION), ELECTROLYTES, SOLUTIONS(MIXTURES), ELECTRICAL CONDUCTIVITY, TEMPERATURE, PRESSURE, CONCENTRATION(CHEMISTRY), SURFACES, SEA WATER, POTASSIUM COMPOUNDS, CHLORIDES

Subject Categories : Physical and Dynamic Oceanography
      Atomic and Molecular Physics and Spectroscopy

Distribution Statement : APPROVED FOR PUBLIC RELEASE