Separatory Funnel Kit
2.Big mouth Funnel：90mm/170mm/210mm/260mm
3.Wide-mouthed funnel: 150mm/200mm/250mm/300mm
***Price List for whole above, inquire us to get
Description
Technical Parameters
The Separatory Funnel Kit, also known as the separatory funnl set, is one of the commonly used glassware sets in chemical experiments. The separating funnl is mainly used to separate two immiscible liquids, such as organic solvents and water. Its unique design and functionality enable experimenters to easily separate mixed liquids, improving experimental efficiency and accuracy.
Before using the separator funnel kit, it is important to carefully check that the separator funnel and its accessories are intact, in particular that the glass material is not cracked or broken, and that the piston and cock (if any) are flexible and can be tightly closed to prevent leakage during the experiment. Experimenters should wear protective equipment such as lab clothes, goggles, and gloves to prevent chemical agents from splashing on the skin or eyes. If the experiment involves toxic or harmful gases, you should also wear a gas mask or respiratory protective equipment.
Parameter
Triangular Funnel
Big mouth Funnel
Wide-mouthed funnel
Composition of Separatory Funnel Kit
The Separate Funnl Kit typically consists of the following main components:
Material: Generally made of glass or special plastic resistant to chemical corrosion (such as Duran).
Capacity: Common capacities include 50ml, 100ml, 250ml, 500ml, 1000ml, and 2000ml.
Structure: There is a stopcock at the bottom of the funnl to control the flow of liquid. There is a frosted mouth at the top of the funnl where a stopper can be placed to prevent liquid evaporation or impurities from entering.
Material: Generally made of polytetrafluoroethylene (PTFE) or glass.
Function: Control the outflow speed and flow rate of the liquid, facilitating precise separation of the liquid.
Material: usually glass or rubber.
Function: Used to seal the funnl mouth, preventing liquid evaporation or external impurities from entering the funnl.
Material: Generally made of metal (such as stainless steel) or plastic.
Function: Used to support the separating funnl, keeping it in a fixed position for easy operation.
Material: metal or plastic.
Function: Used to fix the separating funnl on the bracket to prevent it from slipping or tilting.
Including glass stirring rods, droppers, washing bottles, etc., used to assist in the use of separating funnls.
Performance characteristics
The Separatory Funnel Kit plays a crucial role in chemical experiments, with a wide range of applications covering multiple fields from basic teaching to complex scientific research. The following are the specific applications and detailed analyses of the set in different types of experiments:
In the extraction experiment, the core functions of the Separate Funnl Kit were fully demonstrated. It can accurately separate organic solvents from aqueous solutions to extract the desired pure organic compounds. Taking the extraction of benzoic acid with ethyl acetate as an example, the experimenter needs to slowly pour the aqueous solution of benzoic acid into a separatory funnl, and then add an appropriate amount of ethyl acetate as the extractant. Gently shake the funnl to allow the two liquids to fully contact and undergo extraction. After settling and layering, the ethyl acetate layer (rich in benzoic acid) and the aqueous solution layer are clearly visible, and can be collected separately at this time. In order to further improve purity, experimenters often need to perform multiple extractions and combine the collected ethyl acetate layers. Finally, high-purity benzoic acid can be obtained by drying with anhydrous sodium sulfate and distillation treatment.
Preparation experiment:
In the preparation experiment, the separating funnl also plays an irreplaceable role. It can effectively separate the reaction products from the solvent, thereby ensuring the purity of the products. Taking the preparation of benzaldehyde as an example, the experimenter needs to react benzyl alcohol with an oxidant (such as potassium permanganate) under alkaline conditions to generate benzaldehyde and water. After the reaction is complete, transfer the mixture to a separatory funnl and add an appropriate amount of water for washing. By standing and layering, the organic layer (rich in benzaldehyde) and the aqueous layer can be clearly seen. At this point, simply collect the organic layer and dry it to obtain pure benzaldehyde.
In the analysis experiment, the separating funnl also plays a key role. It can accurately separate different components in the sample, providing a reliable basis for subsequent analysis and determination. Taking the determination of chloride ion content in water as an example, the experimenter needs to pour the water sample into a separating funnl and add an appropriate amount of silver nitrate solution for reaction. The generated silver chloride precipitate will adhere to the funnl wall or precipitate at the bottom, while the remaining silver nitrate will undergo a reduction reaction with the excess sodium thiosulfate solution added, producing metallic silver. After settling and layering, the upper clear liquid can be collected and its volume can be measured. Based on the consumption of sodium thiosulfate, the content of chloride ions in the effluent can be calculated.
Teaching Experiment:
In chemistry teaching, the separating funnel is not only an important experimental tool, but also an intuitive teaching tool to help students understand the phenomenon of liquid stratification and separation principles. For example, to demonstrate the immiscibility between different solvents, the experimenter can mix vegetable oil and water and pour them into a separatory funnl. Through static observation, students can clearly see the phenomenon of two liquids gradually separating into layers. This experiment not only helps students understand the principles of solubility and insolubility between solvents, but also cultivates their experimental skills and observational analysis abilities.
Cleaning method
Cleaning procedure
Initial flushing:
Rinse the separation funnel kit with running water to remove dust and most residue from the surface. For parts that are difficult to rinse, you can use a brush or soft cloth to assist in cleaning.
Soaking and cleaning:
Depending on the specific material of the funnel kit and the nature of the residue, choose the appropriate detergent and soaking time. For example, for glass funnels, cleaning agents such as potassium permanganate solution, alcohol, and distilled water can be used for soaking and cleaning. For plastic or rubber parts, use a cleaner that will not corrode these materials.
After soaking, use a brush to carefully scrub the inner wall and outer wall of the funnel, especially the gap between the piston, cock and other parts, to ensure that there is no residue.
Rinse and dry:
Rinse the funnel kit with tap or distilled water to ensure the cleaner is completely rinsed.
Turn the funnel kit upside down on a clean paper towel or cloth and allow to air dry. If you need to dry quickly, you can use a hair dryer or oven, but care should be taken to avoid deformation or damage to parts caused by high temperatures.
Precautions
Avoid using corrosive cleaners such as strong acid and alkali to avoid damage to the funnel kit.
According to the material of the funnel and the nature of the residue to choose the appropriate detergent, such as the glass funnel can use potassium permanganate solution, alcohol, etc., while the plastic funnel should use a detergent that will not corrode plastic.
In the cleaning process, pay special attention to the gaps in the piston, cock and other parts, which are easy to remain dirt and cleaning agents.
When using a brush, choose a soft brush to avoid scratching the surface of the funnel.
When drying, ensure that the funnel kit is completely dry to avoid corrosion or rust caused by residual moisture.
When storing, the funnel kit should be placed in a dry, ventilated place, avoid direct sunlight and high temperature environment.
During the cleaning process, wear appropriate protective equipment, such as gloves, masks, and goggles, to prevent detergent from splashing into your eyes or skin.
Avoid using a cleaning brush with severe wear, so as not to hit the glass funnel and cause cracking.
Check the seal and valve of the funnel kit regularly to ensure the safety of the experiment.
If the funnel kit is found to be damaged or worn, it should be replaced in time to avoid affecting the test results or causing safety hazards.
The importance of cleanliness
The clean separatory funnel kit is an indispensable part of the laboratory work, it is essential to ensure the accuracy of experimental results and the long-term use of experimental equipment. Therefore, the process of cleaning the separation funnel kit cannot be omitted.
When cleaning a separatory funnel kit, a series of meticulous and comprehensive steps need to be taken. This includes the use of appropriate cleaning agents (according to the material selection, avoid the use of highly corrosive cleaning agents), carefully scrubbing the inner and outer walls of the funnel, especially the gaps in key components such as pistons and plugs, to ensure that there is no residue. After cleaning, it is also necessary to rinse thoroughly with tap water or distilled water, and turn upside down on a clean paper towel or cloth to dry naturally, or use a hair dryer or oven (pay attention to temperature control) for rapid drying.
Omitting cleaning steps can cause the following problems:
Experimental error: An uncleaned funnel kit may contain chemicals from the previous experiment, which may interfere with the results of the current experiment and lead to experimental error.
Equipment damage: The funnel kit that is not cleaned for a long time may accumulate dirt and corrosive substances, which may corrode the surface of the equipment and even cause damage to the equipment.
Safety hazard: Residual chemical substances may react with new chemical substances during the experiment, producing dangerous gases or liquids, which poses a safety hazard to the experimenter.
Lower experimental efficiency: Uncleaned funnel kits may affect the conduct of the experiment, such as blocking the pipeline, affecting the flow of liquid, etc., thus reducing the experimental efficiency.
Therefore, in order to ensure the accuracy of the experimental results, the long-term use of the experimental equipment and the safety of the experimental personnel, cleaning the separation funnel kit is an absolutely indispensable step. The laboratory personnel should strictly abide by the laboratory cleaning procedures, and regularly carry out thorough cleaning and maintenance of the funnel kit.
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