L7Hall Heroult process

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5 Terms

1
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Define Electrolysis?

Breaking down of molten or dissolved ionic compounds using direct electric current.

2
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What ions does Aluminum Oxide have when electrolysed?

Al3+ and O2-

3
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What is the Melting point of Aluminum Oxide?

2072 Degrees

4
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What happens to Aluminum Oxide in the Hall-Heroult process?

Aluminium Oxide is dissolved in Molten Cryolite instead of being electrolyzed directly.

5
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Why is Cryolite a important Molten solution to break down Aluminum Oxide?

Acts as a solvent and increases the conductivity of molten mixture.