1. Sublimation:
The change of solid directly into vapour is called sublimation. The solid changes directly into vapour on heating and on cooling again solidifies without changing into liquid.
Example: Separation of salt and ammonium chloride by sublimation.
2. Sedimentation and decantation:
The process of settling down of heavier insoluble particles from mixture is called sedimentation.
Decantation: The process of transferring the clear and clean liquid without disturbing the sediments is called Decantation.
Example: This method ca be used to purify impure water.
