acetic anhydride

简明释义

醋酐

英英释义

例句

1.In the laboratory, we used acetic anhydride to synthesize aspirin.

在实验室中，我们使用醋酸酐合成了阿司匹林。

2.The production of cellulose acetate involves the use of acetic anhydride as a reagent.

纤维素醋酸酯的生产涉及将醋酸酐用作试剂。

3.Safety precautions are essential when handling acetic anhydride due to its corrosive nature.

由于醋酸酐具有腐蚀性，处理时必须采取安全预防措施。

4.We measured the amount of acetic anhydride needed for the experiment carefully.

我们仔细测量了实验中所需的醋酸酐的量。

5.The reaction between salicylic acid and acetic anhydride produces acetylsalicylic acid.

水杨酸与醋酸酐的反应生成乙酰水杨酸。

作文

Acetic anhydride is a colorless liquid with a pungent odor, widely used in various chemical processes. It is an important reagent in organic chemistry and serves as a key intermediate in the synthesis of many compounds. The chemical formula for acetic anhydride (醋酸酐) is C4H6O3, and it is derived from acetic acid by the removal of a water molecule. This compound plays a crucial role in the production of pharmaceuticals, fragrances, and other industrial chemicals.The primary use of acetic anhydride (醋酸酐) is in the acetylation process, where it introduces an acetyl group into a molecule. This reaction is vital in the synthesis of various drugs, including pain relievers and anti-inflammatory medications. For instance, the synthesis of aspirin involves the reaction of salicylic acid with acetic anhydride (醋酸酐), resulting in the formation of acetylsalicylic acid, which is the active ingredient in aspirin.Moreover, acetic anhydride (醋酸酐) is also used in the production of cellulose acetate, a polymer that has applications in textiles, photography, and coatings. The process involves treating cellulose with acetic anhydride (醋酸酐) to create a material that is both flexible and durable. This polymer is significant in the manufacturing of photographic films and as a component in various plastic products.In addition to its industrial applications, acetic anhydride (醋酸酐) has found its way into laboratories, where it is utilized as a reagent for the synthesis of other organic compounds. Chemists often use it to convert alcohols and amines into their corresponding acetyl derivatives, enhancing their reactivity and solubility.However, handling acetic anhydride (醋酸酐) requires caution due to its corrosive nature. It can cause severe burns upon contact with skin and can irritate the respiratory system if inhaled. Therefore, it is essential to follow safety protocols, including the use of personal protective equipment (PPE) such as gloves and goggles when working with this chemical.In conclusion, acetic anhydride (醋酸酐) is a versatile and valuable compound in the field of chemistry. Its ability to facilitate the acetylation of various substances makes it indispensable in the pharmaceutical industry and beyond. Understanding its properties and applications not only highlights its significance in chemical processes but also emphasizes the importance of safety measures when handling such reactive substances.