Question

Write the uses of following in aluminium metallurgy:
(i) Cryolite
(ii) Carbon or coke powder
(iii) Graphite rod.

Answer 1

Answer:

Cryolite is used in aluminum metallurgy

Answer 2

Answer:

Cryolite : (Na3AlF6)is used to decreases the melting point of alumina ( Al2O3).

Graphite rod : It is acts as anode in hall heroult method and it's acts as cathode in Hoope process for refining for aluminium.

Carbon: carbon lining happens inside the iron tank ,it's also acts as cathode for hall heroult method and anode as hoops method