glacial acetic acid cas number

Glacial Acetic Acid A Comprehensive Overview

Glacial acetic acid, a colorless and odoriferous liquid, is a vital organic compound with the chemical formula CH₃COOH. It is commonly referred to as ethanoic acid, and its CAS number is 64-19-7. This pure form of acetic acid is characterized by its high purity and low water content, making it distinct from commercial acetic acid solutions, which typically contain about 4-20% acetic acid and are commonly known as vinegar.

In the laboratory, glacial acetic acid is often used as a reagent for organic synthesis. It is utilized in the esterification process, where it reacts with alcohols to form esters. This is particularly important in fabricating various fragrance compounds and flavoring agents. Furthermore, glacial acetic acid also serves as a pH adjuster in biochemical and molecular biology laboratories, where maintaining the right pH is essential for enzymatic reactions.

Despite its numerous applications, handling glacial acetic acid requires caution. It is classified as a hazardous substance and can cause severe irritation to the skin, eyes, and respiratory system. Prolonged exposure may result in more serious health issues, emphasizing the importance of using personal protective equipment (PPE) such as gloves, goggles, and masks when working with this compound. Proper ventilation is also crucial in spaces where glacial acetic acid is stored or used.

In the eyes of environmentalists, glacial acetic acid poses certain challenges. While it is biodegradable, large-scale releases into the environment can lead to soil and water pollution. Industrial processes utilizing glacial acetic acid must therefore adhere to stringent safety and environmental regulations to minimize any harmful effects.

In everyday applications, glacial acetic acid is prominent in the food industry. It is commonly used as a food preservative and flavoring agent. Its acidifying properties help in preserving various food items, giving them a distinct tart taste. The use of glacial acetic acid in pickling and condiment production has made it a staple in many households around the globe.

In conclusion, glacial acetic acid (CAS number 64-19-7) is an essential compound in various industries, spanning from chemical manufacturing to food preservation. Though it offers significant benefits due to its versatility, it also poses risks that necessitate careful handling and regulatory compliance. As industries continue to evolve and innovate, the role of glacial acetic acid remains critical, driving progress while reminding us of the importance of safety and environmental awareness in chemical usage.