Accession Number : AD0707057

Title :   ULTRASONIC RELAXATION IN MANGANESE SULFATE SOLUTIONS.

Descriptive Note : Technical rept.,

Corporate Author : CASE WESTERN RESERVE UNIV CLEVELAND OHIO ULTRASONICS RESEARCH LAB

Personal Author(s) : Jackopin,LeRoy G. ; Yeager,Ernest

Report Date : 20 MAR 1970

Pagination or Media Count : 34

Abstract : A two step, three state association-dissociation model was used to interpret the ultrasonic absorption data for manganese sulfate in aqueous solution, combining data obtained in the present work with literature data. The relaxation parameters were calculated by a weighted nonlinear regression method from the experimental data with the nonrelaxational portion of the absorption treated as an additional parameter to be evaulated rather than assuming the value to be that of pure solvent. This two step model accounts for the experimental results within the limits of accuracy of the data with no need to invoke a third step. The intermediate state in this two step model is pictured as consisting of a number of specific configurations all in rapid equilibrium with the barrier heights for conversion from one to the other not much higher than those for the elementary diffusion process for the ions. (Author)

Descriptors :   (*MANGANESE COMPOUNDS, *ULTRASONIC PROPERTIES), SOLUTIONS(MIXTURES), SULFATES, RELAXATION TIME, ELECTROLYTES, DISSOCIATION

Subject Categories : Physical Chemistry
      Acoustics

Distribution Statement : APPROVED FOR PUBLIC RELEASE