Question

Name the methods used for the vapour phase refining of impure titanium and nickel metals

Answer 1

Hello,

Answer: Van Arkel (vapor phase refining)

# Explanation

The principle of the Van Arkel method is the thermal decomposition of metal components. This method can be used to obtain pure titanium or other metals like nickel. In this process, the impure titanium heated at high temperature with the iodine to give volatile Titanium tetra-iodide. It gives pure titanium after decomposition of vapor titanium at a very high temperature.

Ti(impure)+ 2I2 -----> TiI4( titanium tetra-iodide)

TiI4( decomposition) ----> Ti(pure) + 2I2

Hope it helped.