evaporation residue

简明释义

蒸发残渣

英英释义

例句

1.We need to clean the glassware to avoid contamination from previous evaporation residues.

我们需要清洁玻璃器皿，以避免之前的蒸发残留物造成污染。

2.After the solvent evaporated, we analyzed the evaporation residue to determine the composition of the sample.

在溶剂蒸发后，我们分析了蒸发残留物以确定样品的成分。

3.The lab technician measured the weight of the evaporation residue to assess the yield of the reaction.

实验室技术人员测量了蒸发残留物的重量，以评估反应的产率。

4.During the experiment, we observed a dark evaporation residue forming at the bottom of the flask.

在实验过程中，我们观察到一个深色的蒸发残留物在烧瓶底部形成。

5.The presence of evaporation residue in the beaker indicated that the solution was not pure.

烧杯中存在的蒸发残留物表明溶液不纯。

作文

Evaporation is a fundamental process in nature, playing a crucial role in the water cycle and various industrial applications. When a liquid transforms into vapor, it leaves behind any dissolved solids or impurities, which is known as evaporation residue. This term refers to the remaining substances that do not evaporate along with the liquid. Understanding evaporation residue is essential in fields such as chemistry, environmental science, and even cooking.In chemistry, the concept of evaporation residue is critical when analyzing solutions. For instance, when saltwater is heated, the water evaporates, leaving behind salt crystals. The quantity and composition of the evaporation residue can provide valuable information about the original solution's properties. Scientists often use this principle to purify substances or to identify the components of a mixture. By carefully measuring the amount of evaporation residue, they can deduce the concentration of solutes in the liquid prior to evaporation.In environmental science, understanding evaporation residue helps researchers assess the impact of pollutants in bodies of water. When industrial waste is discharged into rivers or lakes, some of the water may evaporate, leaving behind harmful chemicals. These residues can accumulate over time, posing risks to aquatic life and human health. Monitoring evaporation residue allows scientists to track pollution levels and develop strategies for remediation.Cooking also provides a practical example of evaporation residue. When preparing sauces or soups, chefs often allow excess liquid to evaporate, concentrating flavors and thickening the dish. The leftover particles, which may include spices, herbs, or other flavorings, constitute the evaporation residue. Chefs understand that this residue can enhance the overall taste and texture of their creations, demonstrating the importance of this concept in culinary arts.Moreover, the study of evaporation residue extends to various industries, including pharmaceuticals and food production. In the pharmaceutical industry, the purity of a drug can be determined by analyzing its evaporation residue. Any contaminants left behind after the evaporation process can indicate the presence of unapproved substances or impurities, which could affect the drug's efficacy and safety. Thus, rigorous testing of evaporation residue is a standard practice in ensuring product quality.In conclusion, evaporation residue is a significant concept that spans multiple disciplines. From scientific research to everyday cooking, the implications of what remains after evaporation are profound. By examining evaporation residue, we gain insights into the composition of solutions, the effects of pollution, and the intricacies of flavor development in culinary practices. As we continue to explore the world around us, understanding the nuances of evaporation residue will undoubtedly enhance our knowledge and appreciation of both nature and science.

蒸发是自然界中的一个基本过程，在水循环和各种工业应用中发挥着至关重要的作用。当液体转变为蒸汽时，它会留下任何溶解的固体或杂质，这被称为蒸发残留物。这个术语指的是不与液体一起蒸发的剩余物质。理解蒸发残留物在化学、环境科学甚至烹饪等领域都是至关重要的。在化学中，蒸发残留物的概念在分析溶液时至关重要。例如，当盐水加热时，水蒸发，留下盐晶体。蒸发残留物的数量和成分可以提供关于原始溶液性质的宝贵信息。科学家们常常利用这一原理来净化物质或识别混合物的成分。通过仔细测量蒸发残留物的量，他们可以推断出液体在蒸发前溶质的浓度。在环境科学中，理解蒸发残留物有助于研究人员评估水体中污染物的影响。当工业废水排放到河流或湖泊中时，一部分水可能蒸发，留下有害化学物质。这些残留物可能随着时间的推移而积累，对水生生物和人类健康构成风险。监测蒸发残留物使科学家能够跟踪污染水平并制定修复策略。烹饪也提供了蒸发残留物的一个实际例子。在准备酱汁或汤时，厨师经常允许多余的液体蒸发，从而浓缩味道并使菜肴变稠。剩下的颗粒，可能包括香料、草药或其他调味品，构成了蒸发残留物。厨师们明白，这种残留物可以增强他们创作的整体味道和质地，展示了这一概念在烹饪艺术中的重要性。此外，蒸发残留物的研究扩展到制药和食品生产等各个行业。在制药行业，药物的纯度可以通过分析其蒸发残留物来确定。蒸发过程后留下的任何污染物都可能表明存在未批准的物质或杂质，这可能影响药物的有效性和安全性。因此，对蒸发残留物进行严格测试是确保产品质量的标准做法。总之，蒸发残留物是一个跨越多个学科的重要概念。从科学研究到日常烹饪，蒸发后所剩下的东西的影响是深远的。通过检查蒸发残留物，我们获得了对溶液成分、污染影响以及烹饪实践中风味发展的复杂性的深入了解。随着我们继续探索周围的世界，理解蒸发残留物的细微差别无疑将增强我们对自然和科学的知识和欣赏。