Separating Funnel | How to Use Separating Funnel In Liquid-Liquid Extraction सेपरेटिंग फनल का उपयोग
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- เผยแพร่เมื่อ 5 ก.ย. 2024
- This video is aslo available in ENGLISH. Separating Funnel = How to Use Separating Funnel In Liquid-Liquid Extraction (ENGLISH) • Separating Funnel | Ho...
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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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I am ready for my test thank you so much for teaching properly
Nice vedio ... I really liked for studing about it ...
Thank you
Good
nice lecture
Thank you
Thanks mam for this video
Nice info..
I am ready for my exam
Not to be rude, but I understood about a third of what was said in here. Do you think you could maybe add English subtitles?
Really sorry but we are hindi based channel.
Thanks mm mm gpat k liye bhi preparation kraiye please mm
Riddhima Rathor uske liye hamara facebook me group aur page dono hai. Instagram me bhi daily MCQs hai. Aap facebook me hamra solution-pharmacy group join kar sakti hai
Very good😛
good job
Thank you
Thank you mam
MAM plz tell me .. this funnel is made by glass or plastic??
Glass
Mam .stp m oil grease ko identify krne ke lye jo method h uski ek vedieo bhnaye plz
👌👍
Please mam I would like to see vedio about gc, hplc, daviation, calibration, QC inspection and trubalshooting,,
niraj salvi we are really sorry but we do not have these instruments right now.
If we won't release pressure then wat happen
Sandeep Chand Gupta If we dont release the pressure then there will be 02 possibilities-
1- Vaccume will be generate and it will difficulties in opening the cap
2- The liquid flow will be slow and that may might slow down the process.
@@solutionpharmacy u mean after opening of cap then also liquid flow will be slow ????
Sandeep Chand Gupta No. opening of cap will be difficult but once open there will be no issue. (But in case you forgot to open the cap the flow will be v slow)