Ethyl Acetate

On a large scale ethanol and ethanoic acid is added to get the product ethyl ethanoate and water.

In this part of experiment, alcohol(2ml) and CH3COOH(1ml) will react to produce an ester, the ester's odor can then be compared with that of the ester bank to determine the identity of the ester. This is done by mixing the reagents in the solution with a glass stirring rod and then to further dissolve the solution, it

In the United States of America, corn ethanol is the main raw material we use to move our vehicles to accomplish our daily goals. Obviously, corn ethanol is presenting ethanol by corn. The biomass in the ethanol adds fermentation, a system that breaks down any chemicals or other substance in any liquid. Additionally, it is added distillation, the action of purifying the process of heating and cooling. This is how corn ethanol is made.

In this experiment, the Fischer Esterification of an unknown acid and an unknown alcohol was used to prepare an unknown ester. Sulfuric acid was used as a catalyst in the reaction which then was put under reflux. After cooling, the pH of the solution was raised to approximately 8 using sodium carbonate. Diethyl ether was added, then the aqueous layer was removed and the organic layer was washed with sodium chloride. The aqueous layer was removed again and sodium sulfate was added. The unknown product was then identified using gas chromatography (GC) to obtain the retention time.

Introduction: Reaction of a compound with water can result in a splitting, or lysis, of the compound into two parts. Organic molecules containing a group of atoms called an ester can be hydrolyzed by water to form a –COOH group (carboxylic acid) and an HO-- group (alcohol) as follows:

Condensation reaction is a chemical reaction that joins two reactants to form a larger molecule with the loss of a small molecule, usually water. 1 This reaction is used as a basis for many important process in the plastic/food industry. The most common being the formation of ester, also known as esterification. When a carboxylic acid is reacted with alcohol in the presence of a dehydrating agent, ester and water molecule are formed as products:

To transition from an alcohol to an alkene, the alcohol must be dehydrated with the help of an acid through a reaction known as an E1 mechanism.1 The first step of an E1 reaction is the formation of a carbocation intermediate. This carbocation is produced by the removal of a halogen or a substituted group.2 In this experiment, the hydroxy (OH ) group of the alcohol is removed and this produces the carbocation. The OH- group is removed due to the presence of phosphoric acid. The phosphoric acid is used in the process of adding an additional H+ to the OH- group on the alcohol and assists the OH- in leaving, making the reaction an acid catalyzed dehydration. Another reagent used along with phosphoric acid is heat, which is often used in acid catalyzed dehydration.1

The specific aims of the experiment were to initiate the transformation of camphene to isobornyl acetate, and analyze a sample of the products using IR to confirm the presence of isobornyl acetate. The results from the IR analysis confirmed that there was isobornyl acetate present, though it was not overly abundant.

At room temperature (25°C), esterification reactions are relatively slow, therefore requiring the rate of the chemical reaction to be increased for the products to be formed efficiently. This is implemented, by using a catalyst, such as concentrated sulphuric acid (H2SO4 (aq)), as well as by heating the mixture: using a heating mantle. As a result, the energy of the reactants can be greater than the activation energy, increasing the rate of reaction. Hence, as the reactants are relatively volatile, so reflux apparatus such as a pear-shaped flask and a Liebig condenser were used, to minimise the amount of reactants lost, as well as allow the reaction to take place at the highest temperature possible. In addition, boiling chips were added prior to reflux, to prevent bumping and a decrease a loss of volatile reactants, during the reflux

Purpose: The purpose of the experiment was to perform the acid-catalyzed Fischer Esterification of acetic acid and isopentyl alcohol to form isopentyl acetate, or banana oil, which is used in flavor industries. The equilibrium of the reaction was changed by adding an excess amount of acetic acid. The reaction was refluxed and product was purified by extraction and distillation. Isopentyl acetate was analyzed by infrared spectroscopy and 1H NMR spectroscopy.

An ester was synthesized during an organic reaction and identified by IR spectroscopy and boiling point. Acetic acid was added to 4-methyl-2-pentanol, which was catalyzed by sulfuric acid. This produced the desired ester and water. After the ester was isolated a percent yield of 55.1% was calculated from the 0.872 g of ester recovered. This quantitative error was most likely due to product getting stuck in the apparatus. The boiling point of the ester was 143° C, only one degree off from the theoretical boiling point of the ester 1,3-dimethylbutyl, 144 ° C. The values of the

In this experiment, a Fischer Esterification reaction was performed with two unknown compounds. The unknown compounds, Acid 2 and Alcohol D, were identified by using the knowledge of the reaction that took place, and the identity of the product that was synthesized. The identification of the product resulted from analysis of IR and NMR spectra.

Ethanol fuel is typically just made from plant biomass by pretreatment, fermentation, and distillation, which is very much the same way that beer and liquors are produced.

Ethanol or as we know as alcohol in our beverages can be made from any fruit or vegetable that performs photosynthesis which produces glucose shown As required as the reactant of the previous equations.

The purpose of this lab was to synthesize the ester isopentyl acetate via an acid catalyzed esterification (Fischer Esterification) of acetic acid with isopentyl alcohol. Emil Fischer and Arthur Speier were the pioneers of this reaction referred to as Fischer Esterification. The reaction is characterized by the combining of an alcohol and an acid (with an acid catalyst) to yield and ester plus water. In order to accomplish the reaction, the reactants were