Esterification Procedue

To a round-bottom flask add n-propyl alcohol (0.82mL, 11mmol) and propionic acid (0.97mL, 13 mmol). Add four drops of concentrated sulfuric acid and mix. Connect the rb-flask to a reflux condenser and heat to a gentle boil. Reflux the solution for 45 minutes. Cool the solution sufficiently. Transfer the cooled contents into a centrifuge tube containing water (1mL) and wash the solution. Perform two subsequent washes with saturated aqueous sodium bicarbonate (1mL) and saturated aqueous sodium chloride (1mL). Pipet organic layer into a vial and add anhydrous CaCl₂ (5 spheres) and swirl. Pipet contents into dry tared capped vial. An IR spectrometry was performed to determine properties of obtained product.