description of the technique and what kind of substances you can separate with it. Keep the definitions short.
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Erstellt von Herrera Herrera Nicole
vor mehr als 6 Jahre
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Erstellt von Herrera Herrera Nicole
vor mehr als 6 Jahre
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SIEVING
technique for separating particles of different sizes.
Substances you can separate with it: flour, stones from sand, sugar.
EVAPORATION
technique used to separate out homogeneous mixtures where there is one or more dissolved salts. The method drives off the liquid components from the solid components.
Substances you can separate with it: salt in water.
DISTILLATION
process of separating the components or substances from a liquid mixture by using selective boiling and condensation.
Substances you can separate with it: salt from seawater, sugar from water, ethanol from water.
DECANTATION
process for the separation of mixtures of immiscible liquids or of a liquid and a solid mixture such as a suspension.
Substances you can separate with it: muddy water to clear water.
CRYSTALLIZATION
separation technique, in which mass transfer of a solute from the liquid solution to a pure solid crystalline phase occurs.
Substances you can separate with it: alum crystals from impure samples.
FILTRATION
method for separating an insoluble solid from a liquid.
Substances you can separate with it: mixture of sand from water.
MAGNETIC
process of separating components of mixtures by using magnets to attract magnetic materials. The process that is used for magnetic separation detaches non-magnetic material with those who are magnetic. Substances you can separate with it: magnetite and pyrrhotite from minerals.
PAPER CHROMATOGRAPHY
technique for separating dissolved chemical substances by taking advantage of their different rates of migration across sheets of paper.
Substances you can separate with it: these are often coloured substances such as food colourings, inks, dyes or plant pigments.
CENTRIFUGATION
technique used for the separation of particles from a solution according to their size, shape, density, viscosity of the medium and rotor speed. The particles are suspended in a liquid medium and placed in a centrifuge tube.
at from milk to form skimmed milk. To remove solid components from blood in research labs. Substances you can separate with it: to separate water from clothes by spin drying in washing machines.
