TY - JOUR ID - 82153 TI - Electrical Conductivity Studies of 1-Butyl-3-methylimidazolium Salicylate as an Active Pharmaceutical Ingredient Ionic Liquid (API-IL) in Aqueous Amino Acids Solutions JO - Physical Chemistry Research JA - PCR LA - en SN - 2322-5521 AU - Shekaari, Hemayat AU - Mirheydari, Seyyedeh Narjes AU - Zafarani-Moattar, Mohammed Taghi AD - Physical Chemistry Department, University of Tabriz, Tabriz, Iran AD - Department of Physical Chemistry, University of Tabriz, Tabriz, Iran Y1 - 2019 PY - 2019 VL - 7 IS - 1 SP - 217 EP - 234 KW - 1-Butyl-3-methylimidazolium salicylate KW - Molar conductivity KW - Low concentration Chemical Model KW - Amino acids DO - 10.22036/pcr.2019.155184.1558 N2 - 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. UR - https://www.physchemres.org/article_82153.html L1 - https://www.physchemres.org/article_82153_881790abe43c73c86235955ba17beb12.pdf ER -