dihydric

简明释义

英[daɪˈhaɪdrɪk]美[daɪˈhaɪdrɪk]

adj. 二羟基的

英英释义

单词用法

同义词

反义词

例句

1.Ester bond can be formed through the polycondensation of hard segment monomer with uniform segment length containing amide bond and dihydric alcohol, which is a better way to prepare polyesteramide.

先制备具有均一链长的含有酰胺键的硬段单体，然后与二元醇进行缩聚反应生成酯键是制备性能良好的聚酰胺酯的较好途径。

2.Ester bond can be formed through the polycondensation of hard segment monomer with uniform segment length containing amide bond and dihydric alcohol, which is a better way to prepare polyesteramide.

先制备具有均一链长的含有酰胺键的硬段单体，然后与二元醇进行缩聚反应生成酯键是制备性能良好的聚酰胺酯的较好途径。

3.The hydroxylation of phenol to produce dihydric phenol is a rapid and strongly exothermal reaction, the activity of the complex-oxide catalyst decreased rapidly.

苯酚直接羟化制备苯二酚为液固相的强放热快反应，催化剂的活性衰减很快。

4.The method and the condition of separation epoxy ethane from dihydric alcohol are described.

介绍了环氧乙烷与二元醇的分离方法和条件。

5.In chemistry, a dihydric compound is one that contains two hydroxyl groups.

在化学中，dihydric 化合物是指含有两个羟基的化合物。

6.Glycerol is a common example of a dihydric alcohol used in food products.

甘油是食品中常用的一个dihydric 醇的例子。

7.The dihydric nature of certain alcohols makes them effective solvents.

某些醇的dihydric 特性使它们成为有效的溶剂。

8.When studying polyols, understanding the dihydric structure is crucial.

在研究多元醇时，理解dihydric 结构至关重要。

9.The classification of sugars often includes dihydric alcohols as intermediates.

糖的分类通常将dihydric 醇作为中间体。

作文

In the world of chemistry, understanding the properties and classifications of compounds is essential for both students and professionals. One such classification that often comes up in discussions of organic compounds is that of dihydric. The term dihydric refers to a type of alcohol that contains two hydroxyl (-OH) groups in its molecular structure. This characteristic plays a crucial role in determining the physical and chemical properties of these compounds. For instance, common examples of dihydric alcohols include ethylene glycol and propylene glycol, both of which are widely used in various industrial applications. The presence of two hydroxyl groups in dihydric alcohols allows them to engage in hydrogen bonding, which significantly enhances their solubility in water compared to monohydric alcohols that only have one hydroxyl group. This property makes dihydric alcohols particularly useful in applications where high solubility is required, such as in antifreeze formulations or as solvents in chemical reactions. Moreover, the reactivity of dihydric alcohols can be attributed to their structural characteristics. The two hydroxyl groups can participate in various chemical reactions, including esterification and oxidation, leading to the formation of different compounds. This versatility is one of the reasons why dihydric alcohols are extensively studied in organic chemistry. In addition to their chemical properties, dihydric alcohols also exhibit interesting physical characteristics. For example, they generally have higher boiling points than their monohydric counterparts due to the increased hydrogen bonding. This property not only affects their phase transitions but also influences their behavior in mixtures with other substances. Understanding these physical properties is vital for chemists when designing experiments or developing new products. Furthermore, the ecological impact of dihydric alcohols cannot be overlooked. While they play an important role in many industrial processes, their production and use raise questions about sustainability and environmental safety. For instance, the manufacturing of ethylene glycol involves significant energy consumption and can lead to environmental pollution if not managed properly. Thus, it is essential for scientists and engineers to consider the environmental implications of dihydric alcohols and to seek greener alternatives whenever possible. In conclusion, the term dihydric encompasses a fascinating category of chemical compounds that are integral to many industrial applications. Their unique properties, stemming from the presence of two hydroxyl groups, make them valuable in a variety of contexts, from solvents to antifreeze agents. As we continue to explore the realm of chemistry, understanding terms like dihydric will enhance our knowledge and enable us to innovate responsibly, balancing the benefits of these compounds with their environmental impact. By grasping the significance of dihydric alcohols, we can better appreciate the complexity of chemical interactions and the importance of sustainable practices in the field of chemistry.

在化学的世界中，理解化合物的性质和分类对学生和专业人士来说至关重要。其中一个常常在有机化合物讨论中出现的分类是dihydric。术语dihydric指的是一种含有两个羟基（-OH）基团的醇类，其分子结构中包含两个羟基。这一特征在确定这些化合物的物理和化学性质方面起着关键作用。例如，常见的dihydric醇类包括乙二醇和丙二醇，它们在各种工业应用中被广泛使用。 在dihydric醇类中，两个羟基的存在使其能够参与氢键的形成，这显著增强了它们在水中的溶解度，相比只具有一个羟基的单羟醇更是如此。这一特性使得dihydric醇类在需要高溶解度的应用中尤为有用，例如在防冻剂配方或作为化学反应中的溶剂。 此外，dihydric醇类的反应性可以归因于其结构特征。两个羟基可以参与多种化学反应，包括酯化和氧化，导致不同化合物的形成。这种多样性是dihydric醇类在有机化学中被广泛研究的原因之一。 除了它们的化学性质，dihydric醇类还表现出有趣的物理特性。例如，由于氢键增多，它们通常具有比单羟醇更高的沸点。这一特性不仅影响其相变，还影响其与其他物质混合时的行为。了解这些物理特性对于化学家在设计实验或开发新产品时至关重要。 此外，dihydric醇类的生态影响也不容忽视。虽然它们在许多工业过程中发挥着重要作用，但它们的生产和使用引发了关于可持续性和环境安全的问题。例如，乙二醇的制造涉及大量的能源消耗，如果管理不当可能导致环境污染。因此，科学家和工程师必须考虑dihydric醇类的环境影响，并在可能的情况下寻求更环保的替代品。 总之，术语dihydric涵盖了一类迷人的化学化合物，这些化合物在许多工业应用中不可或缺。它们独特的性质源于两个羟基的存在，使它们在从溶剂到防冻剂的各种背景中都具有价值。随着我们继续探索化学领域，理解像dihydric这样的术语将增强我们的知识，使我们能够负责任地创新，在利用这些化合物的好处与其环境影响之间取得平衡。通过掌握dihydric醇类的重要性，我们可以更好地欣赏化学相互作用的复杂性以及在化学领域可持续实践的重要性。