Abstract

Additivity rule is found applicable to the Temperature of Maximum Density (TMD) behavior of strong electrolytes. For the first time a systematic attempt was made to divide Despretz constant Km of an electrolyte into its individual ionic contributions using partial molal expansivity of a proton, E .The large and positive deviations in ionic Km of R4N+ cations proved their well-known structure strengthening ability, corroborating satisfactorily with their structure promoting nature found from measurements of many thermodynamic properties.Despretz rule was found to obey for some amino acids.TMD Study by 1) acoustical technique, 2) Convective flow technique and 3) under pressure is also studied.