Concept explainers
Interpretation:
The substances used in the electrolytic production of aluminum needs to be determined.
Concept introduction:
Hall Heroult’s process is the name given to the industrial preparation of aluminum by the
Answer to Problem 65A
The substance which is electrolyzed in the industrial process to produce aluminum metal is a mixture of pure alumina(Al2O3), cryolite(Na3AlF6) and fluorspar(CaF2).
Explanation of Solution
In the electrolytic mixture used to prepare aluminum, alumina acts as a primary source of aluminum metal, cryolite reduces the melting point and increases the mobility of the electrolytic mixture and fluorspar increases the electric conductivity.
A mixture of alumina, cryolite and fluorspar is used in the industrial process to produce aluminum.
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