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Why is cryolite added to Aluminium oxide 2024?

Zoe Wilson | 2023-04-20 15:14:35 | page views：1410
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Lucas Patel

Works at the International Fund for Agricultural Development, Lives in Rome, Italy.
Aluminium oxide has a very high melting point (over 2,000--C), so it would be expensive to melt it. Instead, it is dissolved in molten cryolite, an aluminium compound with a lower melting point than aluminium oxide. The use of cryolite reduces some of the energy costs involved in extracting aluminium.
2023-04-28 15:14:35
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Benjamin Martin

QuesHub.com delivers expert answers and knowledge to you.
Aluminium oxide has a very high melting point (over 2,000--C), so it would be expensive to melt it. Instead, it is dissolved in molten cryolite, an aluminium compound with a lower melting point than aluminium oxide. The use of cryolite reduces some of the energy costs involved in extracting aluminium.
BBC - GCSE Bitesize: Extraction of aluminium
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