cas number glacial acetic acid

Understanding Glacial Acetic Acid An Essential Chemical Compound

Glacial acetic acid, recognized by its CAS number 64-19-7, is a colorless liquid organic compound with a distinct sour odor. It is a key component in the production of various chemicals and is widely used in both industrial and laboratory settings.

Chemical Properties and Structure

The chemical formula for glacial acetic acid is C2H4O2. As a simple carboxylic acid, it consists of a methyl group (-CH3) attached to a carboxyl group (-COOH). This structure contributes to its acidic properties, making it a weak acid compared to stronger acids like hydrochloric acid. Glacial acetic acid is called glacial because, at low temperatures, it can solidify into a crystalline form resembling ice. Its melting point is approximately 16.6 degrees Celsius (61.88 degrees Fahrenheit), which is significant for its handling and storage.

Glacial acetic acid plays a pivotal role in various industrial processes. It is primarily used as a solvent in the production of synthetic fibers, plastics, and paints. One of its most important applications is as a feedstock for the synthesis of acetic anhydride and acetate esters, which are used in making adhesives and coatings. Additionally, glacial acetic acid is involved in the production of vinegar, giving the condiment its characteristic sour flavor and preservative qualities.

Laboratory Uses

In laboratories, glacial acetic acid serves multiple purposes. It is commonly used as a reagent in chemical synthesis and can facilitate a variety of reactions, such as esterification and acetylation. Its ability to act as a solvent makes it a preferred choice for dissolving many organic compounds.

Safety and Handling

While glacial acetic acid is a valuable compound, it must be handled with care due to its corrosive nature. It can cause severe burns upon contact with skin and can irritate the eyes and respiratory system. Therefore, appropriate safety measures, such as wearing gloves and goggles, should be taken when working with this chemical.

Conclusion

In summary, glacial acetic acid is an essential chemical compound with diverse applications across industries and laboratories. Its unique properties make it invaluable for chemical synthesis, production processes, and as a laboratory reagent. However, with its benefits come safety considerations that demand respect and precaution in handling. Understanding glacial acetic acid, from its structure to its applications, is crucial for students, professionals, and anyone working with chemical substances. As innovation continues to evolve, the role of glacial acetic acid in modern chemistry remains significant and is likely to expand further.