Separation Techniques

Kass
Flashcards by Kass, updated more than 1 year ago
Kass
Created by Kass over 7 years ago
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Chemistry (Chemical Earth) Flashcards on Separation Techniques, created by Kass on 05/05/2013.
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Question Answer
Process in which solids settle to the bottom of the container Sedimentation
Separating solid particles according to their particle size by passing them through a perforated barrier Seiving
Process of separating the liquid component of a solution by boiling the solution and condensing the resulting vapour back to a liquid Distillation
Process of carefully pouring off the liquid and leaving the solid undisturbed at the bottom of the container decantation
Process of separating undissolved solid from a liquid or gas by passing the mixture through a filter Filtration
Process of passing a mixture through a magnetic field to separate the magnetic and non magnetic components Magnetic Separation
Process of separating a dissolved solid from a solution by vaporising the liquid Evaporation
Process of forming crystals from a solution Crystallisation
E.g. Separating sand and gravel Sieving; difference in particle size
E.g. Separating crude oil into various fragments Fractional Distillation; difference in boiling point
E.g. Obtaining salt from sea water Evaporation and Crystallisation; difference in boiling points
E.g. Removing solids from petrol Filtration; difference in particle size
E.g. Separating gold from sand Sedimentation; difference in density
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