Centrifugation| Separation Methods | Physics

In centrifugation, we use the force exerted by rotational motion in order to separate out components of a mixture that have different weights. This is very useful in separating components of a solution that are too light to be separated by sedimentation. We take some muddy water whose heavier particles have already been removed via sedimentation and a solution of calcium hydroxide. Fill two test tubes with muddy water and two test tubes with calcium hydroxide and place all four test tubes in the centrifuge machine as shown. After the machine is rotated for some time, we remove the test tubes and see that we get a precipitate of soil in the muddy water test tubes and a white precipitate in the calcium hydroxide test tubes with clear water on top in all the test tubes. The centrifugal force depends on the mass of the particles and the speed of rotation. With fast rotation even light particles get forced down to the bottom of the test tube as precipitate.

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thank you for the video. IT explained a lot but I have confusion about how the centrifuge separates the solid particles. I mean, Are the solid particles pulled to the bottom "because they are heavier" or "because they spin faster"?

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Because they are heavier

[@absolute___zero]

before using this method you have to be sure that there is no matter in the water that has higher density than water itself. for example , tiny plastic particles o oil will be captured by your filter and brought up as if they were water. would be good for purifying rainwater but not water from industrial waste

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So,literally centrification is based on the principle that "faster the rate of rotation, faster will be the process of sedimentation"

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If I understand the math,, at twice the G forces, it settles 4 times as fast, 3 times the G forces 9 times as fast, etc. I don't have a centrifuge to try though.

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[@edwardpascuzzi6876]

Hello sir. Very nice video, however, there is NO SUCH FORCE as "centrifugal" force..please see any basic physics text, likely chapter 6, motion in a plane/uniform circular motion. The sum of the forces constraining an object to a uniform circular path is CENTRIPETAL force, not 'CENTRIFUGAL' force....the latter is commonly and incorrectly attested to motion under the law of inertia, which states that objects will move linearly unless acted upon by a net force. The net force pushing the liquid to the center is the normal force from the wall of the test tube...inertia causes the liquid matter to move tangent to the path, creating the illusion that the liquid has moved "outward" as viewed in the spinning reference frame. Please amend your text....CENTRIPETAL force depends on m, v squared and R.....there is no such agent creating a "centrifugal' force. Thank you.

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Centrifugation in a Nutshell. So, basically, you push the dust/small particles into the corner of the tube and it's seperated. That's cool. The thing is, where the fuck am i gonna get that spinny thingy?

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I might(😛) sound stupid but what is happening with human blood inside body when they go to cetrafuge atraction in the atraction park?

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free purified water = centrifugal water separator + vertical axis wind turbine generator

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Cream is separator from milk by using cream separator is centrifugal machine

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This help me a lot to understand the process of centrifugation

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sir, where i can buy this hand centrifuge ? would you mind to advice ?

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i liked how he showed us how to rotate the test tubes and they did not even move??????????????????

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Perfect.

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What prevents every thing on a spinning globe from separating?

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Thank you sir I can easily understand centrifugation

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Че биология пацаны)

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On cream process of charning through butterchuner then butter is formed

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Can we use this technique to filter wine from the cloudy pulp ?

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Thnq..

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I would like to solve that Rubik's cube please 🙂

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I want to see chocolate milk or those breakfast essential things put in one

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can we separate gycerine solution ? [ glycerine + water ] ?

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I believe that this is chemistry and not physics sir...

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Short and very well experiment