anhydride

简明释义

英[ænˈhaɪdraɪd]美[ænˈhaɪdraɪd]

n. [化学] 酸酐；脱水物

英英释义

单词用法

同义词

反义词

例句

1.All these drawbacks, however, could be effectively overcome in a semi batch reaction system into which propionic anhydride was continuously fed.

然而，在连续流加丙酸酐的半批式反应系统中，所有这些缺点均可有效地克服。

2.However, the application of epoxy cured by anhydride in other fields is limited as its brittleness.

然而质脆、抗冲击性差等缺点限制了环氧树脂在其它领域的应用。

3.Hardness and temperature, current density, chromium content of sulfuric acid anhydride and are closely related.

铬层软度与温度、电流密度、铬酐及硫酸的含量都有紧密亲密的干系。

4.It was showed that the plant system modification could prolong condensator life and enhance the yield of phthalic anhydride.

结果表明，装置系统改造能提高切换冷凝器的寿命，提高苯酐收率。

5.An optimizing control configuration for oxidizing reaction in the production of phthalic anhydride is proposed in this paper.

本文给出一种苯酐生产中氧化反应收率的最优控制方案。

6.The performance of the reaction using an acid anhydride as an acyl donor was compared with that using its corresponding free acid.

对分别使用酸酐和相应的游离羧酸作酰基给体时的反应性能进行了比较。

7.Sulfuric acid can be produced by reacting water with sulfur trioxide, which is an example of a sulfur anhydride.酸酐

通过将水与三氧化硫反应，可以生产硫酸，这是硫的一个例子酸酐。

8.In organic chemistry, acetic anhydride.酸酐 is often used as a reagent for acetylation reactions.

在有机化学中，醋酸酸酐常用作乙酰化反应的试剂。

9.Phosphoric anhydride.酸酐 is an important compound in the production of fertilizers.

磷酸酸酐在肥料生产中是一个重要的化合物。

10.The formation of carbon dioxide from calcium carbonate involves the release of carbon anhydride.酸酐

从碳酸钙中形成二氧化碳涉及释放碳酸酐。

11.The term anhydride.酸酐 refers to a compound derived from another compound by the removal of water.

术语酸酐指的是通过去除水而从另一种化合物衍生出的化合物。

作文

In the realm of chemistry, understanding various compounds and their properties is crucial for students and professionals alike. One such compound that often comes up in discussions is anhydride, which refers to a substance derived from another compound by the removal of water. The term itself is derived from the Greek words 'a-' meaning 'without' and 'hydor', meaning 'water'. Thus, an anhydride can be understood as a 'water-free' version of a compound. An example of an anhydride is sulfur trioxide (SO3), which is the anhydride of sulfuric acid (H2SO4). When sulfuric acid loses a water molecule, it transforms into sulfur trioxide. This transformation is not just a simple loss of water; it is a critical step in various chemical reactions, particularly in the synthesis of other compounds. For instance, when sulfur trioxide reacts with water, it forms sulfuric acid again, illustrating the reversible nature of this reaction.In addition to sulfur trioxide, there are many other types of anhydrides that play significant roles in organic chemistry. For example, acetic anhydride is another well-known compound that is used extensively in the production of various acetylated derivatives. This compound is formed from acetic acid by the removal of a water molecule. Acetic anhydride is particularly important in the synthesis of pharmaceuticals, plastics, and even in the textile industry. Its ability to introduce acetyl groups into other molecules makes it a valuable reagent in organic synthesis.The significance of anhydrides extends beyond their chemical properties. They are also essential in industrial applications. For example, in the production of fertilizers, certain anhydrides are utilized to create more efficient nitrogen sources. Moreover, in the field of materials science, anhydrides are often employed in the formulation of polymers and resins, contributing to the development of new materials with desirable properties such as increased strength or resistance to heat.However, working with anhydrides requires caution. Many of these compounds can be highly reactive and may pose safety hazards if not handled properly. For instance, acetic anhydride can cause severe burns upon contact with skin, and inhalation of its vapors can lead to respiratory issues. Therefore, it is vital for chemists and laboratory personnel to follow strict safety protocols when working with these compounds.In conclusion, the study of anhydrides opens up a fascinating world of chemistry that bridges theoretical knowledge with practical applications. Understanding the nature of these compounds enhances our grasp of chemical reactions and their implications in various industries. Whether in the classroom or the lab, the exploration of anhydrides provides invaluable insights into the intricate dance of atoms and molecules that shapes our world. As we continue to delve deeper into the study of chemistry, the role of anhydrides will undoubtedly remain a pivotal topic, inspiring future innovations and discoveries.

在化学领域，理解各种化合物及其性质对于学生和专业人士来说至关重要。一个经常出现在讨论中的化合物是无水物，它指的是通过去除水而从另一种化合物衍生出的物质。这个术语本身源于希腊词汇，'a-'意为'没有'，而'hydor'意为'水'。因此，无水物可以理解为一种'无水'的化合物。一个无水物的例子是三氧化硫（SO3），它是硫酸（H2SO4）的无水物。当硫酸失去一个水分子时，它转变为三氧化硫。这种转变不仅仅是简单的水分损失；它是在各种化学反应中，特别是在合成其他化合物中的关键步骤。例如，当三氧化硫与水反应时，它会再次形成硫酸，说明这种反应的可逆性。除了三氧化硫，还有许多其他类型的无水物在有机化学中扮演着重要角色。例如，乙酸无水物是另一个广为人知的化合物，在生产各种乙酰化衍生物中被广泛使用。该化合物是由乙酸通过去除一个水分子形成的。乙酸无水物在制药、塑料甚至纺织工业中的重要性尤为突出。它能够将乙酰基引入其他分子，使其成为有机合成中的一种宝贵试剂。无水物的重要性超越了其化学性质。它们在工业应用中也至关重要。例如，在肥料生产中，某些无水物被用于创造更有效的氮源。此外，在材料科学领域，无水物通常用于聚合物和树脂的配方中，有助于开发具有更强或耐热等理想特性的材料。然而，处理无水物需要谨慎。许多这些化合物可能具有高度反应性，如果处理不当可能会造成安全隐患。例如，乙酸无水物接触皮肤会导致严重烧伤，吸入其蒸汽可能导致呼吸问题。因此，化学家和实验室人员在处理这些化合物时，遵循严格的安全规范是至关重要的。总之，研究无水物为我们打开了一个迷人的化学世界，将理论知识与实际应用结合起来。理解这些化合物的性质增强了我们对化学反应及其在各个行业中影响的把握。无论是在课堂上还是实验室中，探索无水物都提供了对塑造我们世界的原子和分子之间复杂舞蹈的宝贵见解。随着我们继续深入研究化学，无水物的角色无疑将仍然是一个关键主题，激励未来的创新和发现。