Separation

Plus de détails

Epithelial

par Nina Sawyer

7GH Revision

par Chiara Wahsono

SEPARATION OF MIXTURES

par Ailyn Sungcaya

Separation Techniques.

par Nur Afiqah Khalid

Separation Methods

Paper chromatography

Uses of paper chromatography: -To find the dyes used in ink -To find the dyes used in food

Paper chromatography is used to separate small amounts of mixtures.

Magnetic Attraction

Uses of magnetic attraction: -Food processing -To salvage scrap iron and steel

Magnetic attraction can be used to separate magnetic materials from those that are not attracted by a magnet.

Filtration

The insoluble solid is called the residue and the liquid that passed throught the filter paper is called the filtrate

Uses of Filtration -Vacuum cleaners -Coffee Makers

Filtration can be used to separate an insoluble solid from the liquid in a liquid-solid mixture

Evaporation

Uses of evaporation -to get salt from seawater

The solid left behind as the residue

Evaporation is used to separate a dissolved solid from a liquid. The dissoled solid must be stable to heat and not decompose.

Reverse Osmosis

In reverse osmosis, sea water is pre-treated to remove debris and contaminants

Fractional Distillation

Uses of fractional distillation: -To separate crude oil

Fractional distillation is used to separate more than two liquids in a mixture of miscible liquids.

Distillation

Uses of distillation -To make perfumes -Desalination plants

Distillation is used to separate a pure liquid from a solid-liquid or liquid-liquid mixture