A Research Paper on Synthesis of Esters

The hypothesis is made was correct; this experiment is proved that ester can indeed can create by combining carboxylic acid and alcohol. Different scent can be created form combination of different types of alcohol and different types of acid. This means that it is in fact possible to create or scents that could possibly have therapeutic properties. Potential sources of error include that the concentration of the ester created was too high, and hence the scent of the ester was difficult to determine accurately Another Source of error was that the ratio of carboxylic acid and alcohol might have slightly varied from each sample due to inaccurate measuring in the experiment was to be redone more attention could be paid to more accurate ratio of each sample more attention also need to paid to the concentration of each ester so that is easier to identify the smell. The deference rates of esterification are due to chemical structure of alcohol was first reported by German chemist NikolayMenschutkin in 1879 during world war second. He developed solid acid catalyst or ion exchange resin for use in manufacture of ester .The reason for this is that although esters cannot form a hydrogen bond with each other, they can form a hydrogen bond with the water molecules. One of partially-positive hydrogen atoms in water molecules can be attracted to one of the lone pairs of oxygen in the esters thus, a hydrogen bond is formed. This intermolecular attraction will release enough energy sufficiently to solvate the ester. As for the ester with longer chain, the hydrocarbon portion forces itself between the water molecules and break the hydrogen bonds between the water molecules. This makes the solubility decreases. Lewis acid sites are formed but Bronsted acid sites are removed, and Bronsted acid sites are more crucial factor in the catalysis esterification reaction. Hence, if increases the reaction temperature the Bronsted acid sites were reduced and decreases the activity of catalyst. In the part of simulation work, this has been done by nonlinear least square method and Arrhenius law with the help of Matlab software. It was obtained the equilibrium rate constant increases as increase the reaction temperature and catalyst loading hence increases the rate of reaction.