New Data on Activity Coefficients of Potassium, Nitrate, and Chloride Ions in Aqueous Solutions of KNO3 and KCl by Ion Selective Electrodes. (27th November 2012)

• Record Type: Journal Article
• Authors: Dash, Debasmita; Kumar, Shekhar; Mallika, C.; Mudali, U. Kamachi
• Other Names: Rodríguez-Couto S. Academic Editor.; Xu C. Academic Editor.
• Is Part Of: ISRN chemical engineering. Volume 2012(2012)
• Publication Date: 2012-11-27
• Subjects: Chemical engineering -- Periodicals; Chemical engineering; Periodicals; Electronic journals; 660
• DOI: 10.5402/2012/730154
• Languages: English
• ISSNs: 2090-861X

Abstract

Abstract : Ion selective electrodes (ISEs) are used to measure the single-ion activity coefficients in aqueous solutions of KNO3 and KCl at 298.15 K against a double-junction reference electrode. The EMF responses of ISEs up to 0.01 m are plotted to obtain the slope and intercept values. The obtained slopes and intercepts are used in Nernst equation for higher concentrated solutions for calculation of individual ion activity coefficient. The mean ionic activity coefficients are estimated from single ion activity coefficient, and the obtained results are compared with the literature values.