Separating Funnel | How to Use Separating Funnel In Liquid-Liquid Extraction सेपरेटिंग फनल का उपयोग
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This video is aslo available in ENGLISH. Separating Funnel = How to Use Separating Funnel In Liquid-Liquid Extraction (ENGLISH) Separating Funnel | How to Use Separa...
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SEPERATING FUNNEL
A separatory funnel is a standard piece of equipment in synthetic chemistry. Perform the following tests before you start. Suspend the separatory funnel in an iron ring (make sure it does not fall through!).While the stopcock is closed, pour ~20 mL of a lquid (i.e., water) into the separatory funnel (with a short stem funnel). Check if the solvent leaks out at the stopcock. If this does not occur, place the stopper on top and invert the funnel. Does the lquid leak out now? If not, place the funnel back in the ring stand and remove the stopper. Open the stopcock and drain the solvent. If the solvent does not drain, you probably used too much grease to lubricate the stopcock. Pour the solvent out and remove the stopcock plug and check the hole. If it is clogged, use a wooden applicator or piece of wire to open it up. Put it back into the stopcock, secure it and start over with the tests. It is better to solve problems in the beginning and not with your product solution in the funnel later on.
4. Performing an Extraction
a. Place the separatory funnel in an iron ring. Remove the stopper and make sure that the stopcock is closed.
b. Add the solution to be extracted using a short-term funnel. Do not fill the funnel more than half at this point. Add the washing/extraction solution and place the stopper on top. There should still be some room afterwards (75 % of total volume).
c. Take the separatory funnel out of the ring and hold it tightly at the stopper and the stopcock. Invert it slowly and vent (open the stopcock) towards the back of the hood. You will hear a kind of whistle when the pressure is released.
d. Close the stopcock and shake the funnel gently, watching out for emulsions. Vent it again. Repeat this step until no more gas escapes.
e. Place the separatory funnel back in the iron ring. Allow the layers to separate. Then remove the stopper and drain the bottom layer into a clean container. At this point, you need to know which layer contains your desired product.
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Download "Solution Pharmacy" Mobile App to Get All Uploaded Notes, Model Question Papers, Answer Papers, Online Test and other GPAT Materials - https://play.google.com/store/apps/de...
SEPERATING FUNNEL
A separatory funnel is a standard piece of equipment in synthetic chemistry. Perform the following tests before you start. Suspend the separatory funnel in an iron ring (make sure it does not fall through!).While the stopcock is closed, pour ~20 mL of a lquid (i.e., water) into the separatory funnel (with a short stem funnel). Check if the solvent leaks out at the stopcock. If this does not occur, place the stopper on top and invert the funnel. Does the lquid leak out now? If not, place the funnel back in the ring stand and remove the stopper. Open the stopcock and drain the solvent. If the solvent does not drain, you probably used too much grease to lubricate the stopcock. Pour the solvent out and remove the stopcock plug and check the hole. If it is clogged, use a wooden applicator or piece of wire to open it up. Put it back into the stopcock, secure it and start over with the tests. It is better to solve problems in the beginning and not with your product solution in the funnel later on.
4. Performing an Extraction
a. Place the separatory funnel in an iron ring. Remove the stopper and make sure that the stopcock is closed.
b. Add the solution to be extracted using a short-term funnel. Do not fill the funnel more than half at this point. Add the washing/extraction solution and place the stopper on top. There should still be some room afterwards (75 % of total volume).
c. Take the separatory funnel out of the ring and hold it tightly at the stopper and the stopcock. Invert it slowly and vent (open the stopcock) towards the back of the hood. You will hear a kind of whistle when the pressure is released.
d. Close the stopcock and shake the funnel gently, watching out for emulsions. Vent it again. Repeat this step until no more gas escapes.
e. Place the separatory funnel back in the iron ring. Allow the layers to separate. Then remove the stopper and drain the bottom layer into a clean container. At this point, you need to know which layer contains your desired product.
Solution-Pharmacy- The solution-Pharmacy is the completely dedicated channel for Pharmacy Profession. Here we provide Free MCQs, Flashcard and Most Importantly Practical Videos for all Students.
Get in touch with the solution by just clicking following links-
Facebook Group- Facebook: solutionpharamcy
Facebook Page- Facebook: pharmavideo
New channel (Pharmacy Dictionary) - @pharmacydictionary
Instagram- Instagram: solutionpharmacy
E-Mail for official and other work - [email protected]
LinkedIn- LinkedIn: pushpendrakpatel
#solutionpharmacy #Pharmacologyclass #GPATonlinetest
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