Advertisements
Advertisements
Question
Which method is used for refining Zr and Ti? Explain with equation.
Advertisements
Solution
van Arkel method is used for refining Zr and Ti. In this method crude metal is heated with iodine to form volatile unstable compound. The compound is then decomposed to get pure metal.
\[\ce{\underset{Impure}{Zr(s)} + 2I2 ->[870K] ZrI4}\]
\[\ce{ZrI4 ->[1800K] \underset{Pure}{Zr} + 2I2}\]
\[\ce{\underset{Impure}{Ti} + 2I2 ->[523K] TiI4(g)}\]
\[\ce{TiI4 ->[1700K] \underset{Pure}{Ti} + 2I2}\]
APPEARS IN
RELATED QUESTIONS
Name the method used for the refining of Nickel metal.
Name the method used for the refining of zirconium.
Explain the principle of the method of electrolytic refining of metals. Give one example.
What is meant by the term “chromatography”?
Describe a method for refining nickel.
Outline the principles of refining of metals by the following method:
Vapour phase refining
Describe ‘froth floatation process’ for concentration of sulphide ore.
Outline the principles behind the refining of metals by the following methods:
Zone refining method
Write the principle behind the following methods of refining:
Vapour-phase refining
What happens when Copper matte is charged into silica lined converter and hot air blast is blown?
What happens when NaCN is added in an ore containing PbS and ZnS during concentration by froth floatation method?
How are metals used as semiconductors refined? What is the principle of the method used?
Assertion: Zone refining method is very useful for producing semiconductors.
Reason: Semiconductors are of high purity.
Which one of the following methods can be used to obtain highly pure metal which is liquid at room temperature?
Describe a method for refining nickel.
Describe a method for refining nickel.
Describe a method for refining nickel.
Describe a method for refining nickel.
Describe a method for refining nickel.
