Understanding the Properties and Uses of Glacial Acetic Acid and Its CAS Number

Glacial Acetic Acid A Comprehensive Overview

Glacial acetic acid, known by its chemical formula CH₃COOH, is a colorless, pungent liquid that serves as a fundamental building block in various industrial and laboratory settings. Its common CAS number is 64-19-7, which uniquely identifies this compound in chemical registries.

Naturally occurring as a key component in vinegar, glacial acetic acid is a more concentrated form, holding a concentration of about 99-100%. This concentrated version is utilized extensively due to its broad array of applications, ranging from food preservation to textiles and pharmaceuticals.

One of the most significant uses of glacial acetic acid is in the production of various chemical products. It is a precursor for the synthesis of acetic anhydride, acetate esters, and plasticizers, which are essential components in the manufacturing of plastics, resins, and fibers. The textile industry, for instance, utilizes acetic acid in dyeing processes and as a solvent, while the food industry takes advantage of its preservative properties and as a flavoring agent.

In the laboratory, glacial acetic acid is an important reagent in organic synthesis. It acts as a solvent and is involved in various reactions, including esterifications and acetylations. Due to its reactive nature, chemists often use it to modify functional groups in organic compounds, leading to the synthesis of more complex molecules.

Safety is an imperative consideration when handling glacial acetic acid. It is classified as a hazardous substance due to its corrosive properties, capable of causing severe burns upon contact with skin or eyes. The vapors are also irritants, so proper protective equipment, including gloves and goggles, is essential during handling. Adequate ventilation is critical to mitigate inhalation risks, further highlighting the necessity of adhering to safety protocols in environments where it is used.

Despite its risks, glacial acetic acid remains a valuable compound with significant economic importance. It plays a vital role in enhancing the efficiency of various chemical processes, making it an indispensable resource in both industrial applications and research.

In summary, glacial acetic acid, represented by the CAS number 64-19-7, possesses extensive utility in multiple sectors, including chemical manufacturing, pharmaceuticals, and laboratory research. Its unique properties and versatility ensure its continued relevance in modern chemistry, underscoring the significance of understanding both its benefits and safety considerations in its applications.