What precautions should be taken while studying the properties of ethanoic acid?

Hint: Ethanoic acid absorbs moisture, thus, it is also classified as hygroscopic. It can thus react effectively with either bases or acids. This acid at high concentrations can also corrode metal and decompose plastics and rubber.

Complete step by step answer:
Ethanoic acid, also known as acetic acid, is a weak carboxylic acid. The chief formula for acetic acid is \[{C_2}{H_4}{O_2}\]. The acetic acid formula represents the two carbon atoms, four hydrogen atoms and two oxygen atoms. Another method of expressing the acetic acid formula is \[{C}{H_3}COOH.\] This formula demonstrates its carboxyl group \[\left( { - COOH} \right)\]. Acetic acid forms when ethanol is linked with oxygen in the air, thereby yielding ethanoic (acetic) acid and water. This process is known as the oxidation of ethanol. Ethanoic acid is colorless, and moreover, it possesses a sharp and strong odor almost similar to vinegar. The precautions that should be taken while studying the properties of ethanoic acid are:
1. Avoid extravagant inhaling of acetic acid vapours.
2. Do not use open flames or laboratory burners in this experiment.
3. Strictly avoid smelling acetic acid directly.
4. Keep the mouth of the test tube away from you.
5. Add only a small quantity (0.01 g) of \[NaHC{O_3}\]or \[N{a_2}C{O_3}\]to ethanoic acid to control the intensity of \[C{O_2}\]evolved.
6. Use the chemicals prudently.

Note: You should keep in mind that ethanoic acid is a flammable chemical, possessing a flashpoint of 39 degrees Celsius or 104 degrees Fahrenheit. Moreover, the boiling point of ethanoic acid is 118 degrees Celsius. Acetic acid or ethanoic acid is designated as a volatile organic compound.