Chemical transport reaction

A chemical transport reaction is a type of chemical process. It is used to purify chemicals and grow crystals. Chemical transport reactions work by converting the chemicals into a gas with a chemical reaction, and then undoing that reaction somewhere else to leave behind the original compound.

 Examples 
 The Mond process for purifying nickel
 The Van Arkel–de Boer process, used in the past to purify titanium
 Germanium can be purified by transport with iodine

 Sources 

Category:Chemical processes