Abstract
ABSTRACT In this study, triethanolamine (TEA) with choline chloride (ChCl) based deep eutectic solvent (DES) at different mole ratios was prepared. Density at different temperatures (293.15 K to 343.15 K) and pH at different temperatures (303.15 K to 348.15 K). Subsequently, the functional groups and thermal stability of DES at different molar ratios were analyzed using FT-IR spectra, thermogravimetric analysis (TGA) and differential scanning calorimetry (DSC). The isolation of cardanol from cashew nut shell liquid using all the different molar ratio of DES with isobutyl ketone and ethyl acetate as the cosolvents was conducted at 298.15 K and 0.1 MPa. This isolation of cardanol was identified and characterized in terms of isolation efficiency using GC-MS spectra. Further, the molecular polarity of individual species and their mixtures at different molar ratio of DES were analyzed using sigma surface, sigma profile, and sigma potential at molecular level.
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