erlenmeyer flask

简明释义

锥瓶

英英释义

例句

1.I measured the reactants in an erlenmeyer flask before starting the experiment.

在开始实验之前，我在锥形瓶中测量了反应物。

2.In the chemistry lab, we used an erlenmeyer flask to mix the solutions safely.

在化学实验室，我们用锥形瓶安全地混合溶液。

3.The instructor demonstrated how to heat a liquid in an erlenmeyer flask without spilling.

讲师演示了如何在锥形瓶中加热液体而不溢出。

4.After the reaction, we transferred the mixture to an erlenmeyer flask for further analysis.

反应后，我们将混合物转移到锥形瓶中以进行进一步分析。

5.An erlenmeyer flask is ideal for swirling liquids without risk of splashing.

锥形瓶非常适合在不溅出的情况下摇晃液体。

作文

In the world of chemistry, various tools and equipment play crucial roles in conducting experiments and facilitating learning. One such essential tool is the erlenmeyer flask, a type of laboratory glassware that has become iconic for its unique shape and versatility. The erlenmeyer flask is characterized by its conical body, flat bottom, and a neck that narrows at the top. This design allows for easy mixing of solutions while minimizing the risk of spills, making it an indispensable item in both educational and professional settings.The history of the erlenmeyer flask dates back to the 1860s when it was invented by German chemist Emil Erlenmeyer. He designed this flask to improve the efficiency of chemical reactions and to provide a safer alternative to other types of glassware that were commonly used at the time. The shape of the erlenmeyer flask not only aids in mixing but also allows for easy heating of substances, as the conical shape distributes heat evenly.One of the primary uses of the erlenmeyer flask is in titration experiments, where precise measurements of liquid are required. In these experiments, a solution of known concentration is gradually added to a solution of unknown concentration until the reaction reaches a specific endpoint. The narrow neck of the erlenmeyer flask helps to reduce evaporation and allows for better control of the liquid being poured, making it easier for chemists to achieve accurate results.Moreover, the erlenmeyer flask is often used for preparing and storing solutions. Its design makes it suitable for swirling and mixing without the risk of spilling, which is particularly useful when working with volatile or hazardous chemicals. Additionally, many erlenmeyer flasks come with markings along the side, allowing for easy measurement of liquid volumes.In educational settings, the erlenmeyer flask serves as a fundamental tool for teaching students about basic chemistry principles. Whether in high school laboratories or university research facilities, students learn to handle this piece of equipment as they conduct experiments that illustrate concepts such as solubility, reaction rates, and acid-base chemistry. The hands-on experience gained from using an erlenmeyer flask helps reinforce theoretical knowledge and fosters a deeper understanding of chemical processes.Furthermore, the erlenmeyer flask can be made from various materials, including glass and plastic. Glass erlenmeyer flasks are preferred for most laboratory applications due to their durability and resistance to heat and chemicals. However, plastic versions are also available for use in situations where breakage is a concern, such as in classrooms with younger students.In conclusion, the erlenmeyer flask is more than just a simple piece of laboratory equipment; it is a vital instrument that enhances the study and practice of chemistry. Its unique design, versatility, and ease of use make it a favorite among chemists and educators alike. As students and professionals continue to explore the fascinating world of chemistry, the erlenmeyer flask will undoubtedly remain a key component in their scientific endeavors.

在化学的世界中，各种工具和设备在进行实验和促进学习方面发挥着至关重要的作用。其中一种必不可少的工具是锥形瓶，这是一种实验室玻璃器皿，以其独特的形状和多功能性而闻名。锥形瓶的特点是其锥形的主体、平底和在顶部逐渐变窄的颈部。这种设计使得混合溶液变得容易，同时减少了溢出的风险，使其成为教育和专业环境中不可或缺的物品。锥形瓶的历史可以追溯到19世纪60年代，当时德国化学家埃米尔·锥形瓶（Emil Erlenmeyer）发明了它。他设计这个瓶子是为了提高化学反应的效率，并提供一种比当时常用的其他类型玻璃器皿更安全的替代方案。锥形瓶的形状不仅有助于混合，而且还允许均匀加热物质，因为锥形设计可以均匀分配热量。锥形瓶的主要用途之一是在滴定实验中，其中需要准确测量液体。在这些实验中，已知浓度的溶液逐渐加入未知浓度的溶液，直到反应达到特定的终点。锥形瓶的窄颈有助于减少蒸发，并允许更好地控制倒入的液体，使化学家更容易获得准确的结果。此外，锥形瓶通常用于制备和储存溶液。其设计使得在处理挥发性或危险化学品时，可以在不溢出的情况下轻松旋转和混合。此外，许多锥形瓶的侧面都有刻度，便于测量液体体积。在教育环境中，锥形瓶作为教授学生基本化学原理的重要工具。无论是在高中实验室还是大学研究设施中，学生们在进行展示溶解度、反应速率和酸碱化学等概念的实验时，学习如何使用这一设备。通过使用锥形瓶获得的实践经验有助于巩固理论知识，并加深对化学过程的理解。此外，锥形瓶可以由多种材料制成，包括玻璃和塑料。由于耐用性以及对热和化学品的抵抗力，玻璃锥形瓶在大多数实验室应用中受到青睐。然而，在易碎性成为问题的情况下，例如在有年轻学生的课堂上，也可以使用塑料版本。总之，锥形瓶不仅仅是一件简单的实验室设备；它是一种重要的仪器，增强了化学的学习和实践。其独特的设计、多功能性和易用性使其成为化学家和教育工作者的最爱。随着学生和专业人士继续探索化学的迷人世界，锥形瓶无疑将继续作为他们科学努力中的关键组成部分。