Ester

into the esterification reactor. Upon reaching the esterification reactor, esterification reaction of the raw-material slurry occurs. In the polycondensation reactor, polybutylene succinate is synthesized through a polycondensation reaction of the ester; wherein the upstream side of the polycondensation reactor is divided into, an initial polycondensation reactor, an intermediate polycondensation reactor, and a final polycondensation reactor. A catalyst which is water-Stable Lewis Acid is added into

Table 1: Figure 1 summary: IR spectrum isopentyl acetate: Peak (cm-1) | Corresponding Bond: | 2959.98 | C-H | 2872.89 | C-H | 1743.38 | C=O (Ester) | 1244.50 | C-O | Gas Chromatography (GC) Results: The GC resulted in one peak determined to be 100% isopentyl acetate based on comparing to the results of a known sample of isopentyl acetate which had a similar peak after a retention time of

The ester synthesized in the lab was methyl cinnamate. Methyl cinnamate occurs naturally in herbs, spices, and fruits. Specific substances include Ceylon cinnamon, strawberry, guava, and Sichuan pepper. It has a balsamic, fruity, and a cinnamon smell.1 It is soluble in alcohol and oils but not in water. It is commonly used as a flavoring agent in foods and beverages and in various perfumes.1 It can be used in bath foam, cream, hairspray, and shampoo.2 Methyl cinnamate can also be used medically.

Ethoxysilyl- modified hyperbranched polyester as an effective hydrophob agent in miniemulsion polymerization Saber Ibrahim1 and Hamed Elsayed2 ABSTRACT: Hydrophobe agent, modified aliphatic-aromatic hyperbranched polyesters aaHBP were synthesised by melt polycondensation reaction of Diphenolic acid as AB2 type monomer with 4 drops of dibutyltin diacetate with mechanical stirrer, a gas inlet and an outlet. The polycondensation was done in two steps, first in a N2 stream and second applying vacuum

The purpose of experiment five was to create synthetic banana oil by the process of Fischer esterification. This process is when an acid, like acetic acid, is combined with an alcohol, which in this case was isopentyl alcohol. The resulting product was isopentyl acetate, but Fischer esterification processes are known for not going to completion, so some starting material may be present in the final product. The resulting product should contain no more than 10% isopentyl alcohol and no more than 2%

the density of the product. In addition, the boiling point test was performed to test for an ester. Lastly, the starting material, an unknown alcohol, was determined after finding out the product and examining the IR spectrum for the reactant. Procedure: An acetate was synthesized by reacting an alcohol with acetic acid. Since the acetic acid, a carboxylic acid, is less reactive than the acetate, an ester, the sulfuric

sulfuric acid is crucial as it acts as a catalyst and breaks the hydrogen bonds present between the alcohol and the carboxylic acid to create an ester. The concentrated sulfuric acid also acts as a dehydrating agent and removes any water molecules present. As the water is removed the equilibrium

producing an ester and bi-product of water, which can be seen in figure 1 as well. The ester was purified through distillation, and the components were separated during the distillation

In this experiment, the fatty acids of olive oil and sunflower oil were determined and compared to identify the differences. The analysis was conducted using gas chromatography method. Before the analysis, methyl ester was prepared by sodium methoxide method. The fatty acids in lipids are interesterified in the presence of sodium methoxide. The process is known as direct transesterification. Gas chromatography is an analysis that separates and measures the content of various components in a sample

Conclusions 5 Less Pts-Missing Attach 0 TOTAL 71 minus any page overage 0 minus for late reports 0 minus for TA points 0 FINAL TOTAL POINTS 71 INTRODUCTION In the first part of this experiment, an ester product will be isolated and purified from unknown alcohol. Then the product ester will be identified through analysis of boiling point, gas chromatography, and IR spectroscopy. In the second part of the experiment, Biodiesel will be synthesized from vegetable oil by transesterification.