pentoxide

简明释义

英[pentˈɒksaɪd]美[penˈtɑːksaɪd]

n. [无化] 五氧化物

英英释义

单词用法

同义词

反义词

例句

1.Note. (1) The dichloromethane is distilled from phosphorus pentoxide and stored over molecular sieves.

注意事项(1)二氯甲烷加入五氧化二磷蒸馏，加入分子筛储存。

2.It discusses the influences of temperature, the types of sodium salt, and the adding amounts of sodium salt to extracting vanadium pentoxide from high-silicon low-vanadium vanadium slag.

讨论了温度、钠盐种类及钠盐加量对高硅低钒钒渣提取五氧化二钒的影响。

3.The types, technology and characteristics of the "green" nitration for preparing nitric esters using dinitrogen pentoxide as the nitrating agent were introduced.

简要介绍以五氧化二氮为硝化剂制备硝酸酯的“绿色”硝化反应的类型、工艺及特点。

4.It discusses the influences of temperature, the types of sodium salt, and the adding amounts of sodium salt to extracting vanadium pentoxide from high-silicon low-vanadium vanadium slag.

讨论了温度、钠盐种类及钠盐加量对高硅低钒钒渣提取五氧化二钒的影响。

5.The types, technology and characteristics of the "green" nitration for preparing nitric esters using dinitrogen pentoxide as the nitrating agent were introduced.

前言： 简要介绍以五氧化二氮为硝化剂制备硝酸酯的“绿色”硝化反应的类型、工艺及特点。

6.One dinitrogen pentoxide molecule contains two nitrogen atoms and five oxygen atoms.

分子中含有两个氮原子和五个氧原子。

7.The carbon doped niobium pentoxide prepared by the method possesses the co-existing structure of a nanometer flake and a nanometer particle, thereby the specific surface area is big.

使用本发明方法制备的碳掺杂五氧化二铌具有纳米片和纳米颗粒共存的结构，比表面积大。

8.Arsenic pentoxide (As2O5) is also used in insecticides, herbicides, metal adhesives, and pigments.

五氧化二砷（AS2O5）是杀虫剂、除草剂以及金属黏合剂的主要成分。

9."in a desiccator": the drying is carried out over diphosphorus pentoxide R at atmospheric pressure and at room temperature;

“干燥器中”：采用五氧化二磷试剂干燥，大气压，室温。

10.The presence of pentoxide in certain fertilizers can enhance plant growth by providing essential nutrients.

某些肥料中存在的五氧化物可以通过提供必要的营养来促进植物生长。

11.When heated, pentoxide can release toxic fumes, making proper ventilation crucial in the workspace.

加热时，五氧化物可能释放有毒烟雾，因此在工作空间内保持良好的通风至关重要。

12.The chemical formula for phosphorus pentoxide is P2O5, which is commonly used as a dehydrating agent.

磷五氧化物的化学式是P2O5，通常用作脱水剂。

13.The reaction between phosphorus and oxygen produces pentoxide, which can be hazardous if not handled properly.

磷与氧的反应产生五氧化物，如果处理不当可能会有危险。

14.In the laboratory, we often encounter pentoxide when synthesizing phosphoric acid from phosphorus.

在实验室中，我们在合成磷酸时经常遇到五氧化物。

作文

In the world of chemistry, various compounds play crucial roles in both industrial applications and scientific research. One such compound is pentoxide, which refers to a chemical compound containing five oxygen atoms. The term is often used in conjunction with specific elements, such as phosphorus pentoxide (P2O5) or vanadium pentoxide (V2O5). Understanding the properties and uses of pentoxide is essential for students and professionals in the field of chemistry. Phosphorus pentoxide, for example, is a white crystalline solid that is highly hygroscopic, meaning it readily absorbs moisture from the air. This property makes it an excellent dehydrating agent, commonly used in laboratories and industrial processes to remove water from various substances. In organic chemistry, pentoxide can facilitate reactions by acting as a catalyst, thereby speeding up chemical processes without being consumed in the reaction itself. Its ability to form phosphoric acid when reacting with water further emphasizes its significance in chemical reactions.On the other hand, vanadium pentoxide is another important pentoxide that has garnered attention due to its applications in the production of sulfuric acid and as a catalyst in various oxidation reactions. It appears as a yellow-orange powder and is utilized in batteries, ceramics, and as a pigment in paints. The versatility of vanadium pentoxide exemplifies how compounds with five oxygen atoms can be integral to numerous industries.Moreover, the study of pentoxides extends beyond their practical applications. Researchers are continuously exploring their chemical behavior and potential new uses. For instance, the reactivity of pentoxide compounds can lead to the development of novel materials with unique properties, which may have implications in fields such as nanotechnology and materials science.Understanding pentoxide compounds also requires a grasp of their safety and environmental impact. Many pentoxide compounds can be hazardous if not handled properly. For example, phosphorus pentoxide can cause severe irritation to the eyes and respiratory system, while vanadium pentoxide is classified as a potential carcinogen. Therefore, it is crucial for individuals working with these compounds to adhere to safety protocols and regulations to minimize risks.In conclusion, pentoxide compounds like phosphorus pentoxide and vanadium pentoxide are vital in various chemical processes and industrial applications. Their unique properties make them indispensable in laboratories and manufacturing settings. As research continues to unveil new characteristics and potential uses of pentoxide compounds, the importance of understanding their chemistry will only grow. Whether one is a student learning about these compounds for the first time or a seasoned chemist exploring advanced applications, the knowledge of pentoxide is fundamental to the broader field of chemistry.

在化学世界中，各种化合物在工业应用和科学研究中发挥着至关重要的作用。其中一种化合物是五氧化物，指的是含有五个氧原子的化学化合物。这个术语通常与特定元素一起使用，例如五氧化磷（P2O5）或五氧化钒（V2O5）。理解五氧化物的性质和用途对于化学领域的学生和专业人士至关重要。例如，五氧化磷是一种白色结晶固体，具有高度的吸湿性，这意味着它能迅速从空气中吸收水分。这一特性使其成为极好的脱水剂，常用于实验室和工业过程中去除各种物质中的水分。在有机化学中，五氧化物可以通过作为催化剂来促进反应，从而加速化学过程，而不被消耗在反应中。它与水反应生成磷酸的能力进一步强调了其在化学反应中的重要性。另一方面，五氧化钒是另一种重要的五氧化物，因其在硫酸生产和作为各种氧化反应催化剂中的应用而备受关注。它呈现为黄橙色粉末，用于电池、陶瓷以及作为涂料中的颜料。五氧化钒的多功能性体现了含有五个氧原子的化合物如何在众多行业中至关重要。此外，五氧化物的研究不仅限于其实际应用。研究人员不断探索它们的化学行为和潜在的新用途。例如，五氧化物化合物的反应性可能导致新材料的开发，这些材料具有独特的特性，可能对纳米技术和材料科学等领域产生影响。了解五氧化物化合物还需要掌握它们的安全性和环境影响。许多五氧化物化合物如果处理不当可能会有危险。例如，五氧化磷可能会对眼睛和呼吸系统造成严重刺激，而五氧化钒被归类为潜在致癌物。因此，任何与这些化合物打交道的人都必须遵守安全协议和法规，以最大限度地减少风险。总之，像五氧化磷和五氧化钒这样的五氧化物化合物在各种化学过程和工业应用中至关重要。它们独特的性质使它们在实验室和制造环境中不可或缺。随着研究不断揭示五氧化物化合物的新特性和潜在用途，理解其化学性质的重要性只会增加。无论是首次学习这些化合物的学生，还是探索先进应用的资深化学家，对五氧化物的知识都是化学更广泛领域的基础。