%0 Journal Article %T Electrical Conductivity Studies of 1-Butyl-3-methylimidazolium Salicylate as an Active Pharmaceutical Ingredient Ionic Liquid (API-IL) in Aqueous Amino Acids Solutions %J Physical Chemistry Research %I Iranian Chemical Society %Z 2322-5521 %A Shekaari, Hemayat %A Mirheydari, Seyyedeh Narjes %A Zafarani-Moattar, Mohammed Taghi %D 2019 %\ 03/01/2019 %V 7 %N 1 %P 217-234 %! Electrical Conductivity Studies of 1-Butyl-3-methylimidazolium Salicylate as an Active Pharmaceutical Ingredient Ionic Liquid (API-IL) in Aqueous Amino Acids Solutions %K 1-Butyl-3-methylimidazolium salicylate %K Molar conductivity %K Low concentration Chemical Model %K Amino acids %R 10.22036/pcr.2019.155184.1558 %X The molar conductivity data of 1-butyl-3-methylimidazolium salicylate, [BMIm][Sal] as an active pharmaceutical ingredient ionic liquid (API-IL) have been determined in water and aqueous solutions of amino acids, glycine and L-alanine at T= (288.15 to 318.15) K. The molar conductivity data were analyzed by low concentration Chemical Model (lcCM) and limiting molar conductivities ( ), ion association constants "(" "K" _"A" ) and standard Gibbs energies "(∆" "G" _"A" ^"°" ")" of the ion association process were calculated. The obtained values of and decrease with increase in the amino acid concentration. Moreover, the values of increase from glycine to L-alanine solutions due to the stronger solvation of the ions of [BMIm][Sal] by (COO− /NH3+) zwitterionic centers of glycine relative to L-alanine but this trend is vice versa for . The more negative values of "(∆" "G" _"A" ^"°" ")" for [BMIm][Sal] in glycine relative to L-alanine solutions is indicative of the more spontaneously and feasibility of the association process in this amino acid. %U https://www.physchemres.org/article_82153_881790abe43c73c86235955ba17beb12.pdf