esters

简明释义

英[ˈestəz]美[ˈestərs]

n. 酯类

n. （Esters）人名；（德、英）埃斯特斯

英英释义

单词用法

同义词

反义词

例句

1.Esters are named as derivatives of the acids from which they are derived.

酯是作为相应的酸的衍生物来命名的。

2.Environmental hormone phthalate esters are an important kind of environmental hormone.

环境激素类邻苯二甲酸酯是一类重要的环境激素物质。

3.The results indicate that the single and mixed micelles exhibit strong inhibition on the saponification of esters.

结果表明：单一和混合胶束对正脂肪酸乙酯的皂化反应有较强的禁阻作用。

4.Nitrous esters can react with alkyl peroxides to yield alkyl nitrates.

亚硝酸酯与过氧化烷基反应，得到烷基硝酸酯。

5.Main components: a variety of aromatic ketones and aromatic esters.

主要成分：各种芳香酮及芳香酯类等。

6.The product was mainly consisted of acids, alcohols, aldehydes, ketones, esters, water and small-molecule gases.

白松的热裂解产物主要有酸类、醇类、醛类、酮类、酯类、水分和小分子气体等。

7.The methanol reacts with the fatty acids to form esters.

甲醇和脂肪酸发生反应形成酯。

8.The heat of evaporation for various kinds of alkanes, alcohols, esters and aromatics were determined by gas chromatography.

本文用气相色谱测定了多种烷烃、芳烃、醇类和酯类的蒸发热。

9.Many fruits have a pleasant aroma due to the presence of esters.

许多水果因含有酯类而散发出愉悦的香气。

10.In chemistry, esters are often used in the production of fragrances.

在化学中，酯类常用于香料的生产。

11.The sweet smell of bananas is attributed to specific esters found in them.

香蕉的甜香味归因于其中特定的酯类。

12.Some esters can be used as solvents in various industrial applications.

某些酯类可以用作各种工业应用中的溶剂。

13.Wine and beer production involves the fermentation of sugars, which produces esters.

葡萄酒和啤酒的生产涉及糖的发酵，这会产生酯类。

作文

Esters are fascinating chemical compounds that play a significant role in our daily lives. They are formed through the reaction between an alcohol and a carboxylic acid, resulting in a unique group of organic compounds characterized by their pleasant aromas and flavors. Many people may not realize that esters（酯）are responsible for the delightful scents of fruits and flowers, making them essential in the food and fragrance industries. One of the most common examples of esters（酯）is ethyl acetate, which is widely used as a solvent in nail polish removers and paints. Its fruity smell is often associated with ripe bananas or pears, making it a popular choice for flavoring agents in the food industry. Similarly, butyl acetate, another type of esters（酯）, is frequently found in fruit-flavored candies and beverages, contributing to their appealing taste and aroma. The formation of esters（酯）occurs through a process called esterification, where an alcohol reacts with a carboxylic acid, releasing water as a byproduct. This reaction can be reversible, meaning that esters（酯）can also undergo hydrolysis, breaking down back into the original alcohol and acid when exposed to water. This property makes esters（酯）versatile in various applications, from food preservation to synthetic processes in laboratories. In addition to their use in the culinary world, esters（酯）are crucial in the production of plastics and polymers. For instance, polyethylene terephthalate (PET), a widely used plastic in bottles and containers, is made from the reaction of terephthalic acid and ethylene glycol, both of which are esters（酯）. The versatility of esters（酯）extends beyond just food and materials; they are also integral to the field of biochemistry. Many biological processes involve esters（酯）, such as the formation of triglycerides, which are essential fats in our bodies. Moreover, esters（酯）are utilized in the production of biodiesel, an alternative fuel source derived from renewable resources. The transesterification process converts fats and oils into fatty acid methyl esters (FAME), which can be used as biodiesel. This application highlights the significance of esters（酯）in promoting sustainable energy solutions, showcasing their importance in modern chemistry and environmental science. In conclusion, esters（酯）are not just simple chemical compounds; they are vital to numerous industries and natural processes. Their ability to impart pleasant fragrances and flavors makes them indispensable in food and cosmetics, while their roles in plastics and renewable energy underscore their broader significance. Understanding esters（酯）and their properties allows us to appreciate the complex chemistry that underlies many aspects of our everyday lives. As we continue to explore the potential of these compounds, it is clear that esters（酯）will remain a key focus in scientific research and industrial applications for years to come.

酯是一种迷人的化学化合物，在我们的日常生活中扮演着重要角色。它们是通过醇和羧酸反应形成的，形成了一类独特的有机化合物，其特征是令人愉悦的香气和味道。许多人可能没有意识到，esters（酯）是水果和花卉的美妙气味的来源，使其在食品和香料行业中至关重要。 最常见的esters（酯）之一是乙酸乙酯，它广泛用作指甲油去除剂和油漆中的溶剂。它的水果气味通常与成熟的香蕉或梨相关联，因此在食品工业中成为调味剂的热门选择。类似地，丁酸乙酯，另一种esters（酯），经常出现在水果味糖果和饮料中，为其吸引人的味道和香气做出贡献。 Esters（酯）的形成通过一种称为酯化的过程发生，其中醇与羧酸反应，释放出水作为副产品。这个反应是可逆的，这意味着esters（酯）也可以经历水解，暴露在水中时分解回原来的醇和酸。这一特性使得esters（酯）在各种应用中变得多功能，从食品保存到实验室的合成过程。 除了在烹饪世界中的使用外，esters（酯）在塑料和聚合物的生产中也至关重要。例如，聚对苯二甲酸乙二醇酯（PET），一种广泛用于瓶子和容器的塑料，是由对苯二甲酸和乙二醇的反应制成的，这两者都是esters（酯）。Esters（酯）的多功能性不仅限于食品和材料；它们在生物化学领域也不可或缺。许多生物过程涉及esters（酯），例如甘油三酯的形成，这是我们身体中必需的脂肪。 此外，esters（酯）还用于生物柴油的生产，这是一种来源于可再生资源的替代燃料。转酯化过程将脂肪和油转换为脂肪酸甲酯（FAME），可用作生物柴油。这一应用突显了esters（酯）在推动可持续能源解决方案中的重要性，展示了它们在现代化学和环境科学中的重要性。 总之，esters（酯）不仅仅是简单的化学化合物；它们对众多行业和自然过程至关重要。它们赋予愉悦的香气和味道的能力使其在食品和化妆品中不可或缺，而它们在塑料和可再生能源中的作用则强调了它们更广泛的重要性。理解esters（酯）及其特性让我们能够欣赏到许多日常生活中复杂的化学原理。随着我们继续探索这些化合物的潜力，可以明确的是，esters（酯）将在未来的科学研究和工业应用中继续成为重点。