Ethyl ethanoate:
The ethyl ethanoate is also known as ethyl ethanol, which is abbreviated as EA or ETAC. The preferred IUPAC name is Ethyl acetate. Ethyl ethanoate is an organic compound molecule. The chemical formulae is shown as: CH3- COO- CH2- CH3, Simplified to C4 H8 O2. The chemical is colorless and it has some certain sweet smell in it. This chemical find its application in nail polish removers, glues, de caffeinating Coffee and Tea. Its primary usage is as a dilute and solvent because of its good odor, economical cost, and low toxicity. It is widely implemented in perfumes as it has good odor (Colley, S.W et.al 2005).
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Fig1. Shows the structure of ethyl ethanoate
Comparison of the ethyl ethanol manufacturing and testing:
The Ethyl Ethanol has been used and adopted widely in many industries and laboratories. The ethyl ethanol as described at the above paragraph being a dilute and solvent has many application in industries. Many food, cosmetic and chemical industries deal with the production and usage of the ethyl ethanoate. Laboratories in great scale produce and test the ethyl ethanoate in order to research and development. The laboratories manufacture the ethyl ethanoate with highest purity but in case of industries the purity is not the primary target as the production is on the basis of the business the purity is considerably low. The target of any business is to lower the production cost or overall product cost so that they will get more profit. The greater the production cost the lesser the profit. In laboratories these chemicals are only manufactured for the purpose of testing and doing experiments. Also it is being exported to many School and college Laboratories for the education purposes (Weigel, S. et.al 2002).
The school and college use of ethyl ethanoate also requires the purest form of the ethyl ethanoate. So these must be made clean and pure. In industries the production of the ethyl alcohol is done by the esterification of ethanol with the acetic acid. It might also be done using catalytic condensation process by the condensation of the Alkoxides with acetaldehyde. In laboratory manufacturing it is produced by reacting the acetic acid with that of the alcohol. In industrial method the reaction between ethanol and acetic acid is given as:
The classic Fischer esterification reaction is given as:
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We can see that the esterification reaction ends with the production of the ethyl ethanoate and the water as a byproduct.
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Fig2. Illustrates the classic Fischer esterification reaction
Now in the laboratory methods the reaction between the alcohol and the acetic acid is done by taking a 30 milli liter of acetic acid (glacial) and a 40 Milli liter of ethanol of 95 percentage pureness are placed in a flask which is of a 200milli Liter Volume. The shaking action is provided to the flask slowly. The whole flask is immersed in a water cooled bath which acts as a condenser. The heating chips are introduced into the mixture which then heated up for about 30 mins on bath of steam. At last the flask is cooled. Which produces the ethyl ethanoate (Petkovic, M. et.al 2009)
In laboratories the testing is mainly carried out on the products such as the perfumes, fruits and other products directly. In case of the industries the testing process is carried out in a very slow manner with lot of preparations. The industrial processes must be carefully done as it might affect all other surroundings as the industrial surrounding are not made for the experimental safety as in case of laboratories (Chen, C.M., et.al 2015).
We can find from the above two methods of producing the ethyl ethanoate that the method used in laboratory is the most time consuming yet it is the most pure form. But in case of the industrial process it is quicker than the method implemented in the laboratories. The obtained solution is not as pure as the ethyl ethanoate obtained with the laboratory process.
Conclusion:
The ethyl ethanoate has been given brief introduction and the manufacturing process of the ethyl ethanoate for the Laboratory and the Industrial purposes are explained. The classic Fischer esterification reaction was discussed. The laboratory production method was also discussed by the reaction between alcohol and the acetic acid. Then the effect of these manufacturing methods used in industries and its effect in the purity of the ethyl ethanoate has been discussed.
References:
Colley, S.W., Tabatabaei, J., Waugh, K.C. and Wood, M.A., (2005). The detailed kinetics and mechanism of ethyl ethanoate synthesis over a Cu/Cr2O3 catalyst. Journal of Catalysis, 236(1), pp.21-33.
Weigel, S., Kuhlmann, J. and Hühnerfuss, H., (2002). Drugs and personal care products as ubiquitous pollutants: occurrence and distribution of clofibric acid, caffeine and DEET in the North Sea. Science of the Total Environment, 295(1-3), pp.131-141.
Petkovic, M., Ferguson, J., Bohn, A., Trindade, J., Martins, I., Carvalho, M.B., Leitão, M.C., Rodrigues, C., Garcia, H., Ferreira, R. and Seddon, K.R., (2009). Exploring fungal activity in the presence of ionic liquids. Green Chemistry, 11(6), pp.889-894.
Chen, C.M., Syu, J.P., Way, T.D., Huang, L.J., Kuo, S.C., Lin, C.T. and Lin, C.L., (2015). BC3EE2, 9B, a synthetic carbazole derivative, upregulates autophagy and synergistically sensitizes human GBM8901 glioblastoma cells to temozolomide. International journal of molecular medicine, 36(5), pp.1244-1252.
