Separation Methods Physical Separation of Mixtures Methods of

Separation Methods Physical Separation of Mixtures

Methods of Separating Mixtures O Magnetism O Filtration O Decanting O Evaporation O Centrifugation O Chromatography O Distillation

Magnetism O A process in which magnetically susceptible material is extracted from a mixture using a magnetic force.

Filtration Two main purposes: O To remove solid impurities from a liquid O To collect a desired solid from the solution O from which it was precipitated or crystallized

Decanting O A process by which a solid is separated from a liquid O The solid is allowed to settles O Liquid is poured off down a stirring rod

Evaporation O A process by which a liquid or a solid changes into a vapor O 2 ways O (1) by changing into a vapor at the surface, as when water evaporates from an uncovered dish O (2) by boiling, that is, by changing to vapor both within the substance as well as at its surface.

Centrifugation O a process that involves the use of the centrifugal force for the sedimentation of heterogeneous mixtures with a centrifuge

Chromatography O A broad range of physical methods used to separate and or to analyze complex mixtures. O The components to be separated are distributed between two phases: O a stationary phase bed and O a mobile phase which moves through the stationary bed

Chromatography Paper chromatography Column chromatography

Distillation O a process of separating the component substances from a liquid mixture by selective vaporization and condensation

Fractional Distillation of Petroleum