Accession Number : AD0770482

Title :   Individual Activity Coefficients of H+ and Br-in KBr Solution.

Descriptive Note : Final technical rept.,

Corporate Author : ROME UNIV (ITALY) ISTITUTO DI CHIMICA

Personal Author(s) : Milazzo,Giulio ; La Torre,Francesco

Report Date : AUG 1973

Pagination or Media Count : 17

Abstract : The electrode Ag/AgBr/HBr was investigated for the true temperature coefficient of its electrode potential. Measurements at 25 and 35C were extended over the concentration range from about 0.001 m to 0.1 m. Extrapolation to zero ionic strength gives the true temperature coefficient of the standard electrode potential. Comparison of the isothermal temperature coefficients of the cell Ag/AgCl/HCl/Pt-H2/Ag obtained directly, and that obtained by combining the non-isothermal temperature coefficients of the individual electrodes, show good agreement and indicate internal consistency. The activity coefficients of the Cl(-) ion in KCl were computed on the basis of the experimental values obtained in a foregoing investigation under various theoretical approaches and compared with results obtained by other investigators. (Modified author abstract)

Descriptors :   *Bromides, Hydrogen, Ions, Silver, Electrodes, Silver halides, Italy, Temperature, Chlorides, Electrolytes

Subject Categories : Physical Chemistry

Distribution Statement : APPROVED FOR PUBLIC RELEASE