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Synthesis and Characterization of Menthol-based Hydrophobic Deep Eutectic Solvents
* 1, 2 , 3 , 4 , 2 , 2 , 5 , 2 , 5
1  Nigerian Institute of Leather and Science Technology, Zaria, Kaduna State, Nigeria.
2  Department of Chemical Engineering, Ahmadu Bello University, Zaria, Kaduna State, Nigeria
3  National Research Institute for Chemical Technology, Zaria, Kaduna State, Nigeria.
4  Department of Chemical and Petroleum Engineering, Bayero University, Kano, Nigeria.
5  Department of Chemical Engineering, University of Pretoria, South Africa.
Academic Editor: Julio A. Seijas


Hydrophobic Deep Eutectic Solvents (HDESs) have found application in water purification in recent years. The extent of their stability in aqueous media determines whether they are suitable materials for water purification or they end up constituting greater pollution load to the water they are to purify. This work sought to prepare HDESs from a monoterpene (menthol), and three long chain organic acids (octanoic acid, decanoic acid, and dodecanoic acid). The physicochemical characteristics of the prepared HDESs were investigated. Thereafter, their moisture absorption capacity and stability in aqueous medium was determined to ascertain whether they are actually hydrophobic as predicted

Keywords: Hydrophobic Deep Eutectic Solvents; Menthol; Long chain organic acids; Moisture absorption capacity