Accession Number : ADD095157

Title :   Evaluated Activity and Osmotic Coefficients for Aqueous Solutions: Iron Chloride and the Bi-Univalent Compounds of Nickel and Cobalt,

Corporate Author : NATIONAL STANDARD REFERENCE DATA SYSTEM

Personal Author(s) : Goldberg, R N ; Nuttal, R L ; Staples, B R

Report Date : Jan 1979

Pagination or Media Count : 82

Abstract : A critical evaluation of the mean activity and osmotic coefficients in aqueous solutions of iron chloride, nickel chloride, perchlorate, and nitrate and twenty-nine bi-univalent compounds of cobalt at 298.15 K is presented. Osmotic coefficients were calculated from direct vapor pressure measurements, from isopiestic measurements, from freezing point depression measurements, and from vapor pressure osmometry measurements. Given are empirical coefficients for three different correlating equations, obtained by a weighted least squares fit of the experimental data, and tables consisting of the activity coefficients of the compounds, the osmotic coefficients and activity of water, and the excess Gibbs energy of the solution as functions of the molality for each electrolyte system. The literature coverage is through the computerized version of Chemical Abstracts of April 1979. (Author)

Descriptors :   *CHLORIDES, *IRON COMPOUNDS, *NICKEL COMPOUNDS, *COBALT COMPOUNDS, *SOLUTIONS(MIXTURES), *OSMOSIS, COEFFICIENTS, ELECTROLYTES, WATER, FREE ENERGY, HEAT OF SOLUTION, CONCENTRATION(CHEMISTRY), MEASUREMENT, VAPOR PRESSURE, MELTING POINT, VOLTAGE, DIFFUSION, CORRELATION TECHNIQUES, EXPERIMENTAL DATA, TABLES(DATA)

Subject Categories : Inorganic Chemistry

Distribution Statement : APPROVED FOR PUBLIC RELEASE