This is the second method. Both methods have their own pros and cons. The fermentation process is a long process and cannot be sped up by increasing the temperature since it would kill the living bacterial cells. However, unlike the fermentation process, the industrial process is controllable and can be used in continuous production. The final product resulted from the fermentation process is not pure as it contains water together with plant debris and yeast in addition to ethanol.
But in industrial scale process, the final product is purer than that of the fermentation process. The fermentation process of ethanol involves natural and renewable sources. In industrial scale production, ethane is derived from crude oil, which is fossil fuel and is a non-renewable resource. Hence, the more environmentally viable method of producing ethanol is the fermentation process.
Ethanoic acid is a carboxylic acid which belongs to a homologous series of organic acids. Ethanoic acid is mainly used in food as a flavouring agent and also as a preservative. Vinegar is an aqueous solution of ethanoic acid.
Ethanoic acid is a weak acid. In water, it partially dissociates into ions, while forming a dynamic equilibrium. Because of the excess hydrogen irons in the equilibrium solution, an aqueous solution of ethanoic acid becomes weakly acidic. The dynamic equilibrium of ethanoic acid and ethanoate ion can be shown as follows. Ethanoic acid is produced by the oxidation of ethanol in the presence of acidified potassium dichromate VI solution.
However, it is made industrially by the oxidation of ethanol in air in the presence of bacteria. It does not react with sodium bicarbonate. It forms Ester only after reaction with the presence of ethanoic acid. It has alcohol -OH as a functional group. Other than this, there are Ethyl and Hydroxyl groups that exist. It has a sour taste and pungent or vinegar smelling odor.
It can be used as a toilet cleaner or for making vinegar. It exhibits a pH potential of hydrogen scale in the Litmus Paper Test. It reacts with sodium bicarbonate and releases CO 2 gas. It also forms Ester after reaction with the presence of Sulphuric acid. It has a carboxylic acid -OOH as a functional group. Other than this, there are Methyl and Carboxyl groups that exist. While fermenting, Acetobacter bacteria forms Ethanoic acid.
When Ethanoic acid passes through the lime liquid, it turns opaque and evolves into CO 2 gas. Its boiling point is And the melting point is Install the app to watch our videos and get a crystal clear understanding of concepts. X Thank you for registering with us. Please login with the same password. Encyclopedia of academic concepts Articles and project ideas Expert opinion on doubts Sample papers, board papers and exam tips Latest updates from education sector.
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