Question

Describe the role of the following: 1 iodine in the refining of titanium. 2 cryolite in the metallurgy of aluminium.

Answer 1

Cryolite improves the conductivity of cell. And Impure Titanium is heated with iodine to form TiI4 in vapours, and any impurity remains in solid form which can be removed easily. TiI4 is further heated to decompose and give both Ti and I2.

Answer 2

Explanation:

Cryolite improves the conductivity of cell. And Impure Titanium is heated with iodine to form TiI4 in vapours, and any impurity remains in solid form which can be removed easily. TiI4 is further heated to decompose and give both Ti and I2.