halocarbon

简明释义

英[ˌhæləʊˈkɑːbən]美[ˈhæləˌkɑrbən]

n. [有化] 卤烃；卤化碳

英英释义

单词用法

同义词

反义词

例句

1.The trans-critical CO2 air conditioning system has almost the same efficiency as the halocarbon system, and is suitable to be used in automotive air conditioning system and heat pump system.

以跨临界CO2为工质的制冷系统具有与氟里昂系统相当的效率，适合应用于汽车空调系统和热泵系统。

2.The presence of fingerprints, halocarbon oils, and machine oils have been shown to significantly reduce the temperature resistance of metals, including stainless steel and nickel.

已经证明，手印、卤烃油和机油的存在会大大降低包括不锈钢和镍在内的金属的抗温度能力。

3.The trans-critical CO2 air conditioning system has almost the same efficiency as the halocarbon system, and is suitable to be used in automotive air conditioning system and heat pump system.

以跨临界CO2为工质的制冷系统具有与氟里昂系统相当的效率，适合应用于汽车空调系统和热泵系统。

4.Many halocarbon 卤碳化合物 are known to contribute to ozone depletion.

许多halocarbon 卤碳化合物被认为会导致臭氧层的减少。

5.The chemical properties of halocarbon 卤碳化合物 make them effective solvents in various applications.

由于化学性质，halocarbon 卤碳化合物在多种应用中作为溶剂非常有效。

6.Researchers are studying alternatives to halocarbon 卤碳化合物 for more environmentally friendly options.

研究人员正在研究替代halocarbon 卤碳化合物以寻找更环保的选择。

7.Some halocarbon 卤碳化合物 are used in fire extinguishers due to their low toxicity.

一些halocarbon 卤碳化合物因其低毒性而被用于灭火器中。

8.The use of halocarbon 卤碳化合物 as refrigerants has been a common practice in the industry.

在工业中，使用halocarbon 卤碳化合物作为制冷剂是一种常见做法。

作文

Halocarbons are a group of chemical compounds that contain carbon and one or more halogen atoms. These compounds have gained significant attention due to their various applications and environmental impacts. Halocarbons can be found in many everyday products, ranging from refrigerants to solvents. Understanding the properties and implications of halocarbon (卤碳化合物) usage is essential for both industrial practices and environmental protection.The term 'halocarbon' encompasses a wide range of substances, including chlorofluorocarbons (CFCs), hydrofluorocarbons (HFCs), and brominated flame retardants. Each of these compounds has unique characteristics that make them suitable for specific applications. For instance, CFCs were once widely used in refrigeration and aerosol propellants due to their stability and efficiency. However, it was later discovered that they contribute significantly to ozone depletion in the stratosphere, leading to their phase-out under the Montreal Protocol.In contrast, HFCs were introduced as a replacement for CFCs, as they do not deplete the ozone layer. Nevertheless, recent studies have shown that HFCs are potent greenhouse gases, with a global warming potential much higher than carbon dioxide. This has led to increasing regulations and efforts to replace HFCs with more environmentally friendly alternatives. The ongoing search for sustainable substitutes highlights the complex relationship between technology and environmental stewardship.Moreover, halocarbon (卤碳化合物) compounds are also utilized in various industrial processes. For example, they are employed in the production of pharmaceuticals, agrochemicals, and other specialty chemicals. Their unique chemical properties allow for precise control over reactions, making them invaluable in synthetic chemistry. However, the hazardous nature of some halocarbons raises concerns about worker safety and environmental contamination during production and disposal.Another critical aspect of halocarbon (卤碳化合物) compounds is their persistence in the environment. Many halocarbons do not break down easily, leading to their accumulation in ecosystems. This persistence poses risks to wildlife and human health, as these compounds can bioaccumulate and biomagnify through the food chain. Research has shown that certain halocarbons can disrupt endocrine functions in animals, leading to reproductive and developmental issues.To mitigate the adverse effects of halocarbon (卤碳化合物) compounds, scientists and policymakers are working towards stricter regulations and innovative solutions. The development of green chemistry principles aims to minimize the use of harmful substances in chemical processes, promoting safer alternatives. Additionally, public awareness campaigns are essential to educate consumers about the impacts of halocarbons and encourage responsible product choices.In conclusion, halocarbon (卤碳化合物) compounds play a significant role in modern society, contributing to various industrial applications while also posing environmental challenges. A comprehensive understanding of their properties, uses, and impacts is crucial for developing effective strategies to manage their risks. As we move towards a more sustainable future, balancing the benefits of halocarbons with their environmental consequences will be vital for protecting our planet and ensuring the health of future generations.