oxidation

简明释义

英[ˌɒksɪˈdeɪʃn]美[ˌɑːksɪˈdeɪʃn]

n. [化学] 氧化

英英释义

单词用法

同义词

反义词

例句

1.The porous nature of an oak barrel allows some evaporation and oxidation to occur in wine, to concentrate its flavor and aroma compounds.

橡木桶的多孔性使得酒中可以进行一些蒸发及氧化反应，以增加影响风味和香味的化合物的浓度。

2.Usually this happens by exposing minerals to agents that rip away electrons, just as oxygen does during oxidation.

通常，如果矿物暴露于可以夺取电子的介质中，就可以发生这种化学成矿作用，正如氧化过程中氧气的作用方式。

3.Oxidation involves the transfer of electrons .

氧化过程涉及电子的转移。

4.Oxidation of severe can after grinding and polishing.

氧化严峻能够经过研磨和抛光处理。

5.Lilium brownii Polysaccharide can increase the hypoxia tolerance, anti-oxidation action and immuno-enhancing activity in mice.

百合多糖具有增强小鼠耐缺氧能力、抗氧化及免疫增强作用。

6.Gradually, his focus shifted to the more general damage that oxidation can do-and what might, in turn, be done about it.

慢慢地，他的注意力转到了氧化所造成的更大的损伤方面，以及对此所能采取的措施。

7.Oxidation reactions can produce free radicals.

氧化反应可以产生自由基。

8.The process of rusting in iron is a result of the reaction between oxygen and iron, known as oxidation.

铁生锈的过程是氧气与铁反应的结果，称为氧化。

9.In cellular respiration, glucose undergoes oxidation to produce energy.

在细胞呼吸中，葡萄糖经历氧化以产生能量。

10.The browning of an apple after it is cut is due to oxidation of phenolic compounds.

切开的苹果变褐色是由于酚类化合物的氧化。

11.To prevent oxidation, food manufacturers often add antioxidants to their products.

为了防止氧化，食品制造商通常会在产品中添加抗氧化剂。

12.The oxidation of fats can lead to rancidity in food.

脂肪的氧化可能导致食品变质。

作文

Oxidation is a fundamental chemical process that plays a crucial role in various biological and industrial systems. At its core, oxidation refers to the reaction of a substance with oxygen, leading to the loss of electrons from that substance. This process is not only essential for understanding chemical reactions but also has significant implications in our daily lives. For instance, when we breathe, our bodies undergo a series of oxidation reactions that help convert food into energy. This process, known as cellular respiration, is vital for sustaining life. During cellular respiration, glucose is oxidized to produce carbon dioxide, water, and energy in the form of adenosine triphosphate (ATP). Without oxidation, our cells would not be able to function effectively, highlighting the importance of this process in maintaining life. In addition to its biological significance, oxidation is also a key factor in many industrial processes. For example, in metallurgy, oxidation reactions are used to extract metals from their ores. When iron ore is heated in the presence of carbon, a reduction reaction occurs, where carbon reduces iron oxide to produce iron and carbon dioxide. Conversely, oxidation can lead to the corrosion of metals. When iron is exposed to moisture and oxygen, it undergoes oxidation, forming rust, which is iron oxide. This process can weaken structures and machinery, making it a significant concern in engineering and construction. Moreover, oxidation reactions are involved in numerous environmental processes. For instance, the oxidation of organic matter in soil is essential for nutrient cycling, helping to decompose dead plants and animals, thus returning nutrients to the ecosystem. Additionally, oxidation plays a role in the formation of smog and acid rain, which can have detrimental effects on air quality and human health. Understanding these processes is critical for developing strategies to mitigate environmental issues. In the realm of food chemistry, oxidation is responsible for the spoilage of food items. When fruits and vegetables are cut and exposed to air, they undergo oxidation, leading to browning and a decline in nutritional quality. Antioxidants are often added to food products to inhibit oxidation and prolong shelf life. These compounds work by donating electrons to free radicals, thereby preventing them from causing further damage. In conclusion, oxidation is a multifaceted process that is integral to both biological systems and industrial applications. Its implications extend to various fields, including medicine, environmental science, and food preservation. By understanding the mechanisms and effects of oxidation, we can better appreciate its role in our lives and the world around us. As we continue to explore and harness the power of oxidation, we must also remain vigilant about its potential downsides, such as corrosion and pollution, ensuring that we utilize this process responsibly for the benefit of society and the environment.

氧化是一个基本的化学过程，在各种生物和工业系统中发挥着至关重要的作用。其核心是，氧化指的是一种物质与氧气反应，导致该物质失去电子。这一过程不仅对理解化学反应至关重要，还有着显著的日常生活影响。例如，当我们呼吸时，我们的身体经历了一系列的氧化反应，这些反应帮助将食物转化为能量。这个过程被称为细胞呼吸，它对维持生命至关重要。在细胞呼吸过程中，葡萄糖被氧化以产生二氧化碳、水和以三磷酸腺苷（ATP）形式存在的能量。如果没有氧化，我们的细胞将无法有效运作，这突显了这一过程在维持生命中的重要性。 除了生物学上的重要性，氧化在许多工业过程中也是一个关键因素。例如，在冶金学中，氧化反应用于从矿石中提取金属。当铁矿石在碳的存在下加热时，会发生还原反应，其中碳将氧化铁还原为铁和二氧化碳。相反，氧化可能导致金属的腐蚀。当铁暴露于湿气和氧气中时，它会发生氧化，形成锈，即氧化铁。这个过程可能削弱结构和机械设备，因此在工程和建筑中是一个重要的关注点。 此外，氧化反应也涉及许多环境过程。例如，土壤中有机物的氧化对养分循环至关重要，有助于分解死去的植物和动物，从而将养分返回生态系统。此外，氧化在烟雾和酸雨的形成中起着作用，这可能对空气质量和人类健康造成不利影响。理解这些过程对制定减缓环境问题的策略至关重要。 在食品化学领域，氧化是导致食品变质的原因。当水果和蔬菜被切开并暴露在空气中时，它们会经历氧化，导致褐变和营养质量下降。抗氧化剂通常被添加到食品中，以抑制氧化并延长保质期。这些化合物通过向自由基捐赠电子来工作，从而防止它们造成进一步的损害。 总之，氧化是一个多面的过程，对生物系统和工业应用都是不可或缺的。它的影响扩展到多个领域，包括医学、环境科学和食品保存。通过理解氧化的机制和影响，我们可以更好地欣赏它在我们生活和周围世界中的作用。随着我们继续探索和利用氧化的力量，我们还必须保持警惕，注意其潜在的负面影响，如腐蚀和污染，确保我们负责任地利用这一过程，以造福社会和环境。