Esterification and IR Spectroscopy Results PP
N-propyl propanoate (n-propyl propionate) was synthesized using propanoic acid and 1-propanol in the presence of sulfuric acid, resulting in a 62.5 % yield. The initial odor of the mixture of propanoic acid and 1-propanol was very unpleasant and strong. After the reaction was complete, the odor was like that of rubbing alcohol (Table 1). IR spectroscopy was used to determine the purity and identity of the product. The IR spectroscopy revealed the presence of an ester, which correlates to the strong, sharp peak at around 1741 cm-1. In addition, the peak at 2968 cm-1 indicates the presence of the C=O bond commonly found in esters. Lastly, there was a broad peak at 3550 cm-1, which indicates the presence of -OH groups. Because of the presence of alcohol impurities, this suggests that some of the reagents had not undergone the reaction.