To a 5 mL RB flask, 0.95 mL of propionic acid and 0.824 mL of n-propanol was added via pipet. To the RB flask, 4 drops of sulfuric acid were added and the mixture was thoroughly mixed by drawing the contents into a pipet and then releasing. After mixing, boiling chips were added to the RB flask. The RB flask was then connected to an air condenser and a side arm with the side arm pointing 45°downwards towards the sand-bath. The flask was lowered into the sand-bath and gently boiled for 15 minutes after the first water droplets were observed in the side arm. After 15 minutes, ½ of the contents in the sidearm were dropped back into the RB flask and the apparatus was lowered again and heated another 15 minutes. The sidearm was then again tipped until the upper phase of the side arm was in the flask, and the mixture was heated for another 15 minutes. At the end of the last 15 minute window, the apparatus was removed from the sand-bath and allowed to cool to room temperature for 12 minutes. After cooling, the mixture was removed from the flask into a centrifuge tube containing 1 mL of water via pipet and the two layers were mixed in the tube. The aqueous layer was then removed to liquid waste. To the centrifuge tube, 1 mL of saturated aqueous sodium bicarbonate was added and the layers were mixed again and the lower layer was removed. To the remaining mixture in the tube, 1 mL of saturated aqueous sodium chloride was added and mixed, and the lower layer was removed. The organic layer was then pipetted into a new vial and 4 spheres of anhydrous CaCl2 were added and swirled in the mixture. The vial was then left to sit for 5 minutes and after 5 minutes the remaining liquid was moved to a new vial. The odor of the product was then noted and an IR spectrum test was performed.