Скачать или смотреть 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

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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 YouTube Audio Library for the soundtrack

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