Separating soluble substances 321

Crystallisation: As the solvent evaporates the solutions becomes more and more concentrated. Eventually the solution becomes so concentrated that is saturated. This process is called crystallization.Salt are recovered from sea water have been scrapped into piles.

Crystallization

Crystallization Experimnt (image/jpeg)

Caption: : Crystallisation

Evaporation: As the water heats it changes stat and becomes a gas process known as evaporation. Evaporation removes the water from sauces making them thicker and thicker.

Evaporation (image/jpeg)

Caption: : Evaporation

Evaporation

Chromatography: Chromatography is a process that can be separate a mixture by making through another substance. This substance could be gel, column of liquid or strip of paper, like that shown in figure 4.3.1.Water is a solvent.

Chromatgrphy (image/jpeg)

Caption: : Chromatography

Chromatography

Disstilation (image/jpeg)

Distillation: Distillation is a process of separating the component substances from a liquid mixture by selective vaporization and condensation. Distillation result in essentially complete separation.

Caption: : Distillation

Distillation