Salt separation methods.

Chromatography is the separation of a mixture by passing it in solution or suspension or in the form of vapor (as in gas chromatography) through a medium in which the components move at different speeds. Thin layer chromatography is a special type of chromatography used to separate and identify mixtures that color or may be colored, especially pigments.

Evaporation is a technique used to isolate homogeneous mixtures when there is one or more dissolved solids. This method separates liquid components from solid components. This process usually involves heating the mixture until there is no more liquid left.

Filtration is a separation technique used to separate pure substances in mixtures of particles, some of which are large enough to be captured by a porous material.