Metallic and non-metallic anionic interaction activities estimated with sound velocity and refractive index

Density (p +/- 10(-3) kg m(-3)), sound velocity (V-S +/- 10(-2) ms(-1)) as acoustic property and refractive index (mu(ri) +/- 10(-4)) for 0.01-0.1 m K2Cr2O7, K2HPO4, KMnO4, KH2PO4, KCl, and KOH aqueous salts with compressibility attained with ion-solvent interaction (ISI) are reported at 0.01 interval and 293.15 K. Ionic internal pressure generated with ISI is expressed as adiabatic compressibility (beta, pa(-1)) with relative change (Delta beta/beta(0)) and apparent molal compressibility (phi k, m(2) N-1) with specific ionic activities for metallic and non-metallic anions. Linear regression generated V-S(0), mu(0)(ri), phi k(0), and beta(0) as limiting data for analysis of speed of light and sound. The V-S(0) as KH2PO4 > K2HPO4 > KOH > K2Cr2O7 > KCl > KMnO4 denoted a minimum V-S(0) metallic anions. With concentrations, the sound velocity and refractive index are noted as ISI functions where the sound and light waves were in opposite trends. The Mn-0 and Cr-0 transitional metals with anions of the K2Cr2O7 and KMnO4 have affected the compressibility as K2Cr2O7 > KMnO4 due to 2Cr (+6). The V-S(0), mu(0)(ri), phi k(0), and beta(0) analyzed their ionic strengths in comparison to HPO4-, H2PO4- Cl-, and OH- as non-metallic anions considering the interactions as sensors. A molionic model of ionwater interaction was proposed to generalize ion-molecular interactions in industrial mixtures. (C) 2011 Production and hosting by Elsevier B.V.