distilling flask

简明释义

蒸馏瓶

英英释义

例句

1.We observed the vapor rising from the distilling flask as the temperature increased.

随着温度的升高，我们观察到从蒸馏烧瓶中升起的蒸汽。

2.To purify the solvent, we need to heat it in a distilling flask under controlled conditions.

为了净化溶剂，我们需要在受控条件下加热它，放在蒸馏烧瓶中。

3.The distilling flask must be properly cleaned before the next experiment to avoid contamination.

在下一个实验之前，蒸馏烧瓶必须彻底清洗，以避免污染。

4.The chemist carefully poured the liquid into the distilling flask to start the separation process.

化学家小心翼翼地将液体倒入蒸馏烧瓶以开始分离过程。

5.After the reaction, the product was collected in a distilling flask for further analysis.

反应后，产物被收集在蒸馏烧瓶中以便进一步分析。

作文

In the field of chemistry, various instruments and apparatus are essential for conducting experiments and synthesizing compounds. One such important piece of equipment is the distilling flask, which plays a crucial role in the process of distillation. Distillation is a technique used to separate mixtures based on differences in their boiling points. It is commonly employed in laboratories and industrial settings to purify liquids or to separate components of a mixture. The distilling flask is specifically designed to facilitate this process, ensuring that the separation occurs efficiently and effectively.The distilling flask typically has a rounded bottom, which allows for even heating of the liquid inside. This shape is particularly beneficial because it minimizes the risk of overheating and ensures that the liquid boils uniformly. Additionally, the neck of the distilling flask is often elongated and may include a side arm for the attachment of other apparatus, such as a condenser. This design is critical because it helps to direct the vapor produced during boiling into the condenser, where it will be cooled and condensed back into a liquid.When performing distillation, the liquid mixture is placed into the distilling flask, and heat is applied. As the temperature rises, the component with the lower boiling point evaporates first, rising through the neck of the flask. This vapor then enters the condenser, where it cools down and turns back into a liquid. The condensed liquid, known as the distillate, can then be collected in a separate container. This process allows chemists to isolate specific substances from a mixture, making the distilling flask an invaluable tool in both research and industry.Moreover, the distilling flask is not only limited to simple distillation processes. It can also be used in fractional distillation, where multiple components in a mixture are separated based on their boiling points. In this case, a fractionating column is often added between the distilling flask and the condenser to provide additional surface area for repeated vaporization and condensation. This enhances the separation efficiency, allowing for the collection of purer fractions of the original mixture.In conclusion, the distilling flask is a fundamental piece of laboratory equipment that serves a vital role in the process of distillation. Its unique design enables effective separation of liquid mixtures, making it indispensable for chemists and researchers. Understanding how to properly use a distilling flask and the principles behind distillation is essential for anyone pursuing a career in the sciences. Whether in academic research, pharmaceuticals, or chemical manufacturing, the distilling flask remains a key instrument in the toolkit of modern chemistry.

在化学领域，各种仪器和设备对于进行实验和合成化合物至关重要。其中一个重要的设备是蒸馏烧瓶，它在蒸馏过程中发挥着关键作用。蒸馏是一种根据混合物中成分沸点差异进行分离的技术。它通常用于实验室和工业环境中，以纯化液体或分离混合物的成分。蒸馏烧瓶专门设计用于促进这一过程，确保分离有效且高效。蒸馏烧瓶通常具有圆形底部，这样可以使内部液体均匀加热。这种形状特别有利，因为它最小化了过热的风险，并确保液体均匀沸腾。此外，蒸馏烧瓶的颈部通常较长，并可能包括侧臂，以便连接其他设备，如冷凝器。这种设计至关重要，因为它有助于将加热过程中产生的蒸汽引导到冷凝器，在那里蒸汽会被冷却并重新凝结为液体。在进行蒸馏时，液体混合物被放入蒸馏烧瓶中，并施加热量。随着温度的升高，沸点较低的成分首先蒸发，沿着烧瓶的颈部上升。这些蒸汽随后进入冷凝器，在那里它们冷却并转变回液体。凝结后的液体称为馏分，可以收集在单独的容器中。这个过程使化学家能够从混合物中分离特定物质，使得蒸馏烧瓶成为研究和工业中不可或缺的工具。此外，蒸馏烧瓶不仅限于简单的蒸馏过程。它也可以用于分馏蒸馏，在这种情况下，混合物中的多个成分根据其沸点进行分离。在这种情况下，通常在蒸馏烧瓶和冷凝器之间添加一个分馏柱，以提供额外的表面积进行重复的蒸发和冷凝。这提高了分离效率，使得能够收集到更纯净的原始混合物的馏分。总之，蒸馏烧瓶是实验室设备中的基本组成部分，在蒸馏过程中发挥着重要作用。其独特的设计使得液体混合物的有效分离成为可能，使其对化学家和研究人员来说不可或缺。理解如何正确使用蒸馏烧瓶以及蒸馏背后的原理，对于任何追求科学事业的人来说都是至关重要的。无论是在学术研究、制药行业还是化学制造中，蒸馏烧瓶始终是现代化学工具箱中的关键仪器。