Extraction of Aluminium from Bauxite

A simple but detailed lesson on the extraction of aluminium from bauxite.This video is based on the O'level chemistry syllabus. It covers the uses and properties of aluminium, the purification of bauxite and the electrolysis of alumina. It is carefully created with beautiful animation to make it interesting to learners.
It is recommended for candidates preparing for the WASSCE, NECO/SSCE, NABTEB, IGCSE, JAMB and Post-UTME chemistry examinations
TIMESTAMP
00:00 - Lesson Title: Extraction of Aluminium from bauxite
00:13 - Objectives of the lesson
00:51 - Channel intro
01:26 - Aluminium is the 13th element in the Periodic Table and the 3rd most abundant in the earth’s crust
01:36 - Properties and uses of aluminium
01:58 - Sources of aluminium
02:10 - Purification of bauxite (Bayer Process)
02:19 - Constituents of bauxite
03:46 - Electrolysis of alumina (Hall-Heroult Process)
03:54 - The Hall-Heroult cell
04:11 - Functions of cryolite in the electrolysis of alumina
04:29 - Dissociation of alumina
05:01 - Reaction at the anode/Anodic half-reaction
05:21 - Reaction at the cathode/Cathodic half-reaction
05:51 - Overall cell reaction
06:07 - Challenges of Hall-Heroult process
06:46 - Call to action (CTA)
We would like to acknowledge and appreciate Imgbin.com and Pxfuel.com for the photo images used in this video, and the UA-cam Audio Library for the soundtrack
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[@dev.j.panchal1557]

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You've earned a subscriber. Simple,detailed and straight to the point, this is how videos on the internet should be!

[@TheScienceChefAcademy]

Thank you for watching! We are glad that you like it.

[@charlesoffiong6963]

Interesting lesson on aluminium extraction. Thanks for making this video.

[@TheScienceChefAcademy]

Glad you liked it!

[@patriciaakwero993]

Thanks so much for this. You are a life saver...God bless you

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[@israelfifelola5129]

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[@TheScienceChefAcademy]

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[@TheScienceChefAcademy]

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[@TheScienceChefAcademy]

Thanks for watching!

[@JCS-CLOSET]

Thankyou for this✨
I like how you take it slow when explaining the process.
I understood everything
Thanks again!

[@TheScienceChefAcademy]

You are welcome! We are glad that you like it!

[@mohazali6810]

Thanks ya made it easier and simple for me 👏btw am watching dis before oneday to mi chemistry final exam

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We are glad you liked it!

[@psycho3776]

Nice video! Keep it up

[@TheScienceChefAcademy]

Thanks, will do!

[@ictresourcecentre-cameroon5119]

This is way easier to understand than my notes thanks guys

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You are welcome!🙏

[@alliswell5318]

Thank you sir... Really impressive

[@TheScienceChefAcademy]

You are welcome! Thanks for watching!

[@drnick5747]

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Wow! We are glad to know that you enjoyed it. Thank you for watching.

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[@rachelmachiya3713]

Thank you

[@TheScienceChefAcademy]

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[@foam4123]

good explaination and diagrams

[@TheScienceChefAcademy]

Thank you for watching!

[@shakespearmyth3324]

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[@TheScienceChefAcademy]

Thanks for watching, bro!🙏

[@syed_ali818]

Best explanation

[@TheScienceChefAcademy]

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[@devjaiswal1685]

Thank u so much sir

[@TheScienceChefAcademy]

You are welcome, Dev! We are glad that you like it!

[@ahmedmna3]

Thanks
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Thanks for watching!

[@uddandamjyothsana1959]

Thanku

[@TheScienceChefAcademy]

You are welcome! We are glad that you like it!

[@abdurraheem4819]

Can you please guide that i am making aluminum hydroxide on lab scale from bauxite then the difficulty is that of precipitation some says that if you will add excess water aluminum hydroxide will automatically pecipitated out kindly guide how i can precipate aluminum hydroxide

[@TheScienceChefAcademy]

Add pure crystals of aluminum hydroxide to the saturated solution of sodium aluminate (III) and allow it to cool to room temperature. You will achieve your precipitation.

[@abdurraheem4819]

@@TheScienceChefAcademy Thanks for your reply can you guide me that the precipitate i will get after that are of which colour like light brown actually i want to produce aluminum sulfate from it
and please guide me i am doing my first reaction where can i get crystals of aluminum hydroxide

[@abdurraheem4819]

And can you guide me that i can add hcl to precipetate aluminum hydroxide

[@lacnoic2236]

can i ask u why at 3:35 al(oh)3 doesnt react with naoh since according to my knowledge, al(oh)3 is amphoteric

[@TheScienceChefAcademy]

Of course Al(OH)3 reacts with NaOH, but in a saturated solution of NaAl(OH)4, Al(OH)3 can be crystallized out of the solution when pure crystals of the hydroxide are added. We call it the ion concentration effect; that is, when the concentration of a particular ion is very high in a given solution, the ion will be precipitated from that solution.

[@abdurraheem4819]

@@TheScienceChefAcademy Can you please guide that i am making aluminum hydroxide on lab scale from bauxite then the difficulty is that of precipitation some says that if you will add excess water aluminum hydroxide will automatically pecipitated out kindly guide how i can precipate aluminum hydroxide

[@jaskaransinghlahoria1122]

Thanks so much for this. You are a life saver...God bless you

[@TheScienceChefAcademy]

AMEN! Thanks for watching!