pentane

简明释义

英[ˈpenteɪn]美[ˈpenteɪn]

n. [有化] 戊烷

英英释义

单词用法

同义词

反义词

例句

1.This paper deals with the production and properties of iso-pentane blown PU rigid foams, and safety control.

本文将详细讨论异戊烷发泡聚氨酯硬泡的生产和泡沫性能及安全控制。

2.Pentane combines advantageous physical and technical properties with good environmental data. As a blowing agent for polyurethane rigid foams, it is suitable for China market.

戊烷作为发泡剂具有良好的物理和工艺性能及合适的环境数据，适合于我国聚氨酯泡沫市场。

3.The reliability of the apparatus had been checked by measuring the critical constants of n-pentane.

测定了正戊烷的临界参数以证实该装置的可靠性。

4.The catalytic activity and selectivity of the catalysts for n-pentane isomerization at ambient temperature were investigated.

考察了所制备的催化剂上常温下正戊烷异构化反应的活性和选择性。

5.The separation of n-pentane, n-hexane and n-heptane mixture with the dividing wall column(DWC) was simulated with commercial software HYSYS, and the optimized operation region was obtained.

以正戊烷、正己烷和正庚烷为分离物系，在简捷计算结果的基础上，利用商业模拟软件HYSYS研究了进料热状态、进料组成和相对挥发度等进料性质对立式隔板塔操作的影响。

6.However, simultaneously monitoring nitric oxide, carbon monoxide,hydro-peroxides, nitrites, nitrates, pentane and ethane in the breath, wouldallow a much more definitive diagnosis of asthma.

无论如何，同时地检测呼吸中的氧化一氮、一氧化碳、,过氧化氢物、亚硝酸盐、硝酸盐,、戊烷和乙烷，将能对哮喘做确定性的诊断。

7.The boiling point of pentane is around 36 degrees Celsius.

戊烷的沸点约为36摄氏度。

8.To create a standard reference, chemists often use pentane in their experiments.

为了创建标准参考，化学家们常在实验中使用戊烷。

9.During the fractional distillation process, pentane can be separated from other hydrocarbons.

在分馏过程中，戊烷可以从其他烃类中分离出来。

10.In organic chemistry, pentane is often used as a solvent for various reactions.

在有机化学中，戊烷常用作各种反应的溶剂。

11.In the petroleum industry, pentane is often used as a blending component.

在石油工业中，戊烷常用作混合成分。

作文

Pentane is a simple alkane with the chemical formula C5H12. It is a hydrocarbon that consists of five carbon atoms connected by single bonds, along with twelve hydrogen atoms. This compound is classified as a straight-chain alkane and is notable for its various applications in the chemical industry. Understanding the properties and uses of pentane (戊烷) is essential for students and professionals in chemistry and related fields.One of the most significant characteristics of pentane (戊烷) is its physical state at room temperature. It is a colorless liquid with a distinctive odor that can be easily recognized. The boiling point of pentane (戊烷) is approximately 36 degrees Celsius, which makes it useful as a solvent in various chemical reactions and processes. Additionally, pentane (戊烷) has a low viscosity, allowing it to flow easily and mix with other substances.In the laboratory, pentane (戊烷) is often used as a non-polar solvent. Its ability to dissolve non-polar compounds makes it an ideal choice for extraction processes. For instance, chemists frequently use pentane (戊烷) to extract essential oils from plant materials or to purify organic compounds. This versatility highlights the importance of pentane (戊烷) in organic chemistry.Moreover, pentane (戊烷) is also utilized in the production of polystyrene, a common plastic found in many household items. During the manufacturing process, pentane (戊烷) serves as a blowing agent, helping to create the foam structure that gives polystyrene its lightweight and insulating properties. This application demonstrates how pentane (戊烷) contributes to the development of materials that are widely used in everyday life.Another interesting aspect of pentane (戊烷) is its role in the field of fuel. It is one of the components found in gasoline, which is crucial for powering internal combustion engines. The presence of pentane (戊烷) in gasoline contributes to the fuel's overall energy content and performance. Understanding the combustion properties of pentane (戊烷) can help engineers and scientists develop more efficient fuels and reduce emissions from vehicles.Despite its usefulness, it is important to handle pentane (戊烷) with care. As a flammable substance, it poses risks if not managed properly. Safety precautions should always be taken when working with pentane (戊烷) in the laboratory or industrial settings. Proper ventilation, protective gear, and adherence to safety protocols are essential to minimize any potential hazards associated with its use.In conclusion, pentane (戊烷) is a fundamental compound in organic chemistry with diverse applications across various industries. From its role as a solvent in chemical reactions to its use in the production of plastics and fuels, understanding pentane (戊烷) is crucial for anyone studying or working in the field of chemistry. By recognizing its properties and applications, we can appreciate the significance of this simple yet vital hydrocarbon in our daily lives.

戊烷是一种简单的烷烃，化学式为C5H12。它是一种由五个碳原子通过单键连接而成的烃，伴随有十二个氢原子。该化合物被归类为直链烷烃，并因其在化学工业中的多种应用而引人注目。理解pentane（戊烷）的性质和用途对化学及相关领域的学生和专业人士至关重要。pentane（戊烷）的一个显著特性是它在常温下的物理状态。它是一种无色液体，具有独特的气味，容易被识别。pentane（戊烷）的沸点约为36摄氏度，这使得它在各种化学反应和过程中作为溶剂非常有用。此外，pentane（戊烷）具有低粘度，允许它轻松流动并与其他物质混合。在实验室中，pentane（戊烷）常用作非极性溶剂。它溶解非极性化合物的能力使其成为提取过程的理想选择。例如，化学家经常使用pentane（戊烷）从植物材料中提取精油或纯化有机化合物。这种多功能性突显了pentane（戊烷）在有机化学中的重要性。此外，pentane（戊烷）还用于聚苯乙烯的生产，聚苯乙烯是一种在许多家居用品中常见的塑料。在制造过程中，pentane（戊烷）作为发泡剂，帮助创造出赋予聚苯乙烯轻便和绝缘特性的泡沫结构。这一应用展示了pentane（戊烷）如何促进广泛用于日常生活的材料的发展。pentane（戊烷）的另一个有趣方面是它在燃料领域的作用。它是汽油中的成分之一，对内燃机的动力至关重要。pentane（戊烷）在汽油中的存在有助于燃料的整体能量含量和性能。理解pentane（戊烷）的燃烧特性可以帮助工程师和科学家开发更高效的燃料并减少车辆的排放。尽管pentane（戊烷）非常有用，但处理时必须小心。作为一种易燃物质，如果管理不当会带来风险。在实验室或工业环境中工作时，应始终采取安全预防措施。适当的通风、保护装备以及遵守安全协议对于减少与其使用相关的潜在危害至关重要。总之，pentane（戊烷）是有机化学中的基础化合物，在各个行业中具有多种应用。从其作为化学反应溶剂的作用到其在塑料和燃料生产中的使用，理解pentane（戊烷）对任何学习或从事化学领域的人来说都是至关重要的。通过认识其性质和应用，我们可以欣赏到这种简单而重要的烃在我们日常生活中的重要性。