200 Ml Erlenmeyer Flask
1) Narrow-mouth Bottle: 50ml~10000ml;
2) Big B Bottle: 50ml~3000ml;
3) Horn Mouth: 50ml~5000ml;
4) Wide-mouth Bottle: 50ml/100ml/250ml/500ml/1000ml;
5) Conical Flask With Cover: 50ml~1000ml;
6) Screw Conical Flask:
a. Black Lid (General Sets): 50ml~1000ml
b. Orange Lid (Thickening Type): 250ml~5000ml;
2. Single and Multi-mouth Round Bottom Flask:
1) Single Mouth Round Bottom Flask: 50ml~10000ml;
2) Inclined Three-mouth Flask: 100ml~10000ml;
3) Inclined Four-mouth Flask: 250ml~20000ml;
4) Straight Three-mouth Flask: 100ml~10000ml;
5) Straight Four-mouth Flask: 250ml~10000ml.
***Price List for whole above, inquire us to get
Description
Technical Parameters
In the vast world of chemistry laboratories, the 200 ml Erlenmeyer Flask has become a trusted assistant for numerous experimenters and researchers due to its unique conical design and versatile use. This small and practical glassware not only carries the mysteries of countless chemical reactions, but also witnesses every moment of scientific exploration. The usage in chemical experiments is diverse and complex. Through thorough preparation in the preparation stage, careful operation in the operation stage, meticulous observation in the recording and observation stage, and proper handling of subsequent processing, the safety and accuracy of the experiment can be ensured and the expected experimental results can be achieved through close cooperation and collaboration in all aspects. As a multifunctional core in chemical laboratories, it plays an important role in various fields such as dissolution and dilution, precipitation reactions, acid-base neutralization reactions, organic synthesis, and biochemical experiments. By mastering its correct usage and maintenance techniques, it is possible to fully leverage its advantages and ensure the accuracy and safety of experimental results.
Material and Characteristics
The Flask is usually made of high-quality glass, and the choice of this material is based on its excellent properties in multiple aspects:
1. Corrosion resistance:
Glass material can resist the corrosive effects of various chemical reagents, ensuring that the flask will not be damaged or deformed due to chemical reactions during the experimental process.
2. High transparency:
The high transparency of glass allows experimenters to clearly observe the experimental phenomena and solution state inside the flask, which helps to detect problems in a timely manner and adjust experimental conditions.
3. High temperature resistance:
Glass flasks can withstand high temperatures without breaking or deforming, and are suitable for experimental operations under various heating conditions.
4. Reusability:
After appropriate cleaning and drying, the glass flask can be reused multiple times, reducing experimental costs and minimizing waste generation.
Main purpose
Chemical reaction: As a reaction vessel, it is used for various chemical reactions, such as synthesis, decomposition, REDOX and so on.
Sample preparation: Used for sample preparation processes such as dissolution, dilution, mixing, etc.
Heating and stirring: It can be used with magnetic stirrer and digital hot plate to achieve heating and stirring function and promote the reaction.
Storage and transfer: Used to store experimental solutions or transfer solutions to other containers.
Structural characteristics and advantages
On the vast stage of chemistry, experimental vessels are actors, and chemical reactions are the scripts they jointly perform. Among these numerous actors, the 200 ml Erlenmeyer Flask has become one of the most popular and relied upon "stars" in the laboratory with its unique design and versatility. This seemingly simple conical flask actually holds infinite potential and can play a crucial role in various chemical experimental scenarios.
The structural design of the Flask is full of wisdom and practicality, and its main features include:
1. Conical bottom:
This design not only increases the stability of the flask, reduces the risk of tipping over, but also enables even distribution of heat, improving heating efficiency. In addition, the conical bottom also facilitates the dissolution and mixing of solid reagents, making the reaction more thorough and uniform.
2. Long neck and wide mouth:
The long neck reduces the risk of evaporation and splashing, allowing steam and bubbles to rise and be expelled smoothly during heating, stirring, or titration processes. The wide mouth design facilitates feeding, mixing, and cleaning operations, improving experimental efficiency. Meanwhile, the wide mouth also makes it easier to observe experimental phenomena and measure solution volume.
3. Transparent material:
High quality glass material gives the flask good transparency, allowing experimenters to clearly observe the experimental phenomena and solution state inside the flask. This transparency not only helps to detect problems in a timely manner and adjust experimental conditions, but also enhances the interest and viewing value of the experiment.
Widely applicable scenarios
The 200 ml Erlenmeyer Flask is widely used in various chemical experimental scenarios due to its versatility
1. Dissolution and dilution: When preparing the solution, solid reagents can be added to the flask and then dissolved with an appropriate amount of solvent. For solutions that require dilution, operations can also be carried out in a flask. By controlling the amount of solvent added and stirring speed, a solution with precise concentration can be prepared.
2. Precipitation reaction: In the precipitation reaction, add the precipitation reagent to the flask and then add an appropriate amount of solvent for reaction. The desired precipitate can be generated by controlling the reaction conditions and stirring speed. The generated precipitate can be separated and purified by methods such as filtration and centrifugation.
3. Acid base neutralization reaction: When using a flask for acid-base neutralization reaction, acid or alkali solution can be added to the flask and controlled and measured using a burette or pH meter to achieve the neutralization reaction of the solution. This method is commonly used to determine the acidity or alkalinity of unknown solutions and to prepare buffer solutions.
4. Organic synthesis: In organic synthesis experiments, flasks can be used for heating reflux, distillation purification, and other operations. By controlling the heating temperature and reaction time, the target compound can be synthesized and subsequently separated and purified. In addition, the flask can also be used for organic synthesis reactions such as Grignard reaction and esterification reaction.
5. Biochemical experiments: In biochemical experiments, flasks can be used for enzymatic reactions, protein purification, and other operations. By adjusting reaction conditions and adding appropriate biocatalysts, the conversion and separation purification of biomolecules can be achieved. In addition, the flask can also be used for molecular biology experiments such as DNA extraction and PCR amplification.
6. Evaporation and concentration: The wide mouth and long neck structure of the flask can facilitate evaporation and concentration operations. Add the liquid to be evaporated into the flask and heat it to evaporate to the desired concentration.
Historical Origins and Evolution
This 200 ml erlenmeyer flask, which is almost ubiquitous in chemistry laboratories, has a profound historical origin and is full of storytelling. Its invention not only represents an important breakthrough in the design of chemical instruments, but also reflects the evolution of chemical research methods and the innovative spirit of scientists at that time.
Its invention is attributed to German chemist Richard August Carl Emil Erlenmeyer (commonly referred to as Emil Erlenmeyer), who was born in Wiesbaden, Germany in 1825 and was the son of an evangelical pastor. At that time, chemistry had not yet fully separated from other disciplines such as physics, but Emil Erlenmeyer's love and pursuit of chemistry made him an important figure in this field.
At first, Emil Erlenmeyer's ambition was to become a doctor, but when he entered Giessen University, he was deeply attracted by the courses of the renowned chemist Justus von Liebig, which changed his career path. Despite his desire to enter Liebig's laboratory for learning, the competition is fierce and he faces many difficulties. However, fate took a turn when he was almost about to give up, and the laboratory of another famous chemist, Robert Wilhelm Bunsen, opened its doors to him, even though he was not initially allowed to engage in teaching and instructional work.
Emil Erlenmeyer began his improvement and innovation of chemical instruments in Bunsen's laboratory. At that time, glass instruments widely used in chemical experiments still had significant shortcomings in heat resistance, especially when using high-temperature heating equipment such as Bunsen lamps that could generate flames up to 800-900 ℃. The stability of glass instruments became an urgent problem to be solved.
To solve this problem, Emil Erlenmeyer first invented asbestos mesh, a tool that can evenly disperse heat and protect glass instruments from direct high-temperature burning. However, he did not stop there and further started with the design of the heating container, ultimately inventing the Flask named after him.
The clever design lies in its unique conical bottom and long neck. The conical bottom not only increases the stability of the flask, but also enables more uniform distribution of heat, thereby improving heating efficiency. The long neck effectively reduces the overflow of steam and bubbles during the heating process, while also facilitating operations such as plugging and titration.
Since its inception in 1861, this design has quickly gained widespread application and recognition in the chemical community. With the advancement of science and technology and the diversification of experimental needs, specifications have gradually become more diverse, evolving from a few fixed capacities to now covering a variety of specifications ranging from a few milliliters to several liters. Among them, the 200ml Flask has become one of the most commonly used models in the laboratory due to its moderate capacity and flexibility. In addition, in order to further improve heat resistance and durability, manufacturers have also adopted various advanced glass materials and manufacturing processes. For example, many modern times use high-quality glass materials such as Pyrex and add elements such as boron to increase their heat resistance and corrosion resistance. The invention of this product not only solved the problem of insufficient heat resistance of glass instruments in chemical experiments at that time, but also became an indispensable and important tool in chemical laboratories with its unique design and multifunctionality. The evolution of the Flask from its initial single design to today's diverse range of specifications and material choices has witnessed the continuous advancement of chemical instrument design technology and the innovative spirit of scientists.
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