SEPARATION OF MIXTURE 9B

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SEPARATION OF MIXTURE 9B

Simple Distillation

As the distillate begins to drop from the condenser, the temperature observed on the thermometer should be changing steadily

Heat the distillation flask slowly until the liquid begins to boil (see Figure 4). ...

Fill the distillation flask. ...

Check the calibration of the thermometer that is to be used. ...

Distillation is the process of separating the components or substances from a liquid mixture by using selective boiling and condensation.

Filtration

After the filtrate has been collected, pass a small amount of the wash liquid through the filter paper to wash the residue.

Wet the filter paper using a small amount of the liquid that is the solvent of the mixture being filtered.

Place filter paper in the funnel. ...

Flute filter paper if necessary

the action or process of filtering something

Chromatography

The paper is then placed into a sealed container with a swallow layer of suitable solvent

The sample needs to be separated is placed as a small drop or line on to the paper using capillary tube. ...

A horizontal line is drawn near one end (about 1.5 cm from the bottom edge) of the paper. ...

a technique for the separation of a mixture by passing it in solution or suspension through a medium in which the components move at different rates

Fractional distillation

The mixture boils, forming vapor (gases); most substances go into the vapor phase.

You heat the mixture of two or more substances (liquids) with different boiling points to a high temperature. ...

separation of a liquid mixture into fractions differing in boiling point (and hence chemical composition) by means of distillation, typically using a fractionating column

Crystallisation

Crystals are collected and dried as per the product requirement

When the solution cools, crystals of solute start accumulating on the surface of the solution.

The solvent molecules start evaporating, leaving behind the solutes.

The solution is heated in an open container.

The formation of crystals or the assumption of a crystalline form.

Decantation

Steps

Pour suitable washing solvent to the precipitate and transfer the solvent by decantation

Tilt the container and slowly decant the supernatant.

Put a stirring stick on the mouse of the container to avoid trickling of the liquid to the outside of the container.

Definition

is a process for the separation of mixtures of immiscible liquids or of a liquid and a solid mixture such as a suspension.