Lab report on a fischer esterfication essay

Preparation of esters lab

The second peak with a retention time of 2. Snell, Foster Dee, ed. Next decant the product from the calcium chloride. Since this method using GC is only useful in product identification when there is a known substance to compare it to, other methods such as NMR were used. Interscience publishers, More specifically it is a nucleophillic acyl substitution reaction carried out under acidic conditions. This allows for the naming of an unknown compound by analyzing the different functional groups that makes up the specific compound. Chromic acid was used in this experiment to in order to prepare 2-butanol. These steps were repeated until the layer that was being drained out could turn litmus paper blue. Upon removing this mixture after the hour of boiling was over, the sweet, fruity, banana smell was very strong and distinct and the solution was very dark yellow. Now, the only thing left to do is to remove impurities left in the compound. This causes the acetic acid to be removed from the organic phase, leaving only alcohol, the reaction products, and impurities in the organic phase.

Esters are very useful products because they give some perfumes, cosmetics, foods and beverages their sweet and fruity odor. In order to be accurate with analysis the NMR results should be compared to the one found in Sadtler.

carboxylic acid experiment conclusion

This meant that the acid, acetic acid, needed to be in excess, in order to shift the equilibrium to the right. This is why 1. Our lab manual states that this solution should have been clear and not opaque!

Then sodium bicarbonate was used in the same way that the water was used to separate further all the impurities that my compound was likely to have picked up.

carboxylic acid lab report

Procedure: An acetate was synthesized by reacting an alcohol with acetic acid. A sample of the product diluted in diethyl ether was entered into the GC at a temperature of 80oC and at a rate of 10o per minute.

preparing isopentyl acetate by the fischer esterification lab report

Peak B represents one hydrogen that is adjacent to eight hydrogens. The first peak with a retention time of 1. Backround: A Fischer Esterification is the formation of an ester and water from alcohol and an acid.

Lab report on a fischer esterfication essay

This just described was necessary in order to remove the excess acid from the product. The salt that is formed is very soluble in water, and not at all soluble in the organic phase. Using a ratovac to evaporate the remaining impurities did this. As a result, the reaction…. Chromic acid was used in this experiment to in order to prepare 2-butanol. This causes the acetic acid to be removed from the organic phase, leaving only alcohol, the reaction products, and impurities in the organic phase. This allows for the naming of an unknown compound by analyzing the different functional groups that makes up the specific compound. In this investigation student used ethanoic acid and ethanol with sulfuric acid as catalyst to produce ester, which was known of its smell. Snell, Foster Dee, ed. The data and calculations sheets are attached to the report.

While this mixture was heating, it changed from a foggy appearance dark yellow color almost immediately.

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The Fischer Esterification Experiment Essay Example