Separation of Substances

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We all must have observed our parents and grandparents separating small stones or pebbles from the rice grains, pulses, filtering tea leaves before the final consumption and many other things. The practice of Separation of drugs is typically required to get rid of or separate the specified substances from their mixtures.

Substances are often classified into: Mixture and therefore the pure substance.

Mixtures

A mixture may be a material made from two or more different substances which are mixed but aren't combined chemically.

Separation

Separation is that process of separating one or more components from a mix . Example: distillation, sedimentation, filtration etc.

Handpicking

Handpicking may be a method of separation that helps to separate large sized impurities like pieces of dirt, stone, and husk from wheat, rice or pulses.

Threshing

The process in which the grains are separated from the grains from the harvested crops by beating of stalks is called Threshing. It is done manually by farmers, or by threshing machines.

Winnowing

This method of separation  is used to separate husk from grains as it does not separate heavier and lighter components of a mix by wind or by blowing air. 

Sieving

Sieving may be a method of separation during which the mixture is skilled a filter or a sieve. The larger particles, usually the impurities, don't undergo the filter, and hence collect on the sieve. The finer particles flow past the sieve and may be collected below.

Filtration of Sedimentation and Decantation

Filtration is the process of passing the mixture through a filter to get rid of the solid particles from the fluid components of the mixture. For instance, if we pass muddy water through a fine filter, we can notice that the mud gets filtered and the water passes through.

Sedimentation

When the heavier component within the mixture settles when water is added thereto , the method is named sedimentation. This method is employed in separating grains from dust and soil.

Decantation

Decantation is the process after sedimentation that involves removing the water, along with the impurities.

Evaporation

Condensation: The Process of conversion of water vapor into its liquid form thanks to contact with a cooler surface is called condensation.

Example: When water droplets are formed on a metallic lid when water boils. 

Evaporation

When water is converted into vapour, that process is termed as Evaporation. This process of evaporation takes place continuously wherever water is present irrespective of the surface and temperature. 

Can Water Dissolve It All?

Solution

A solution may be a homogeneous mixture composed of two or more substances.In such a mix , a solute may be a substance dissolved in another substance, referred to as a solvent.

Saturated Solution

A saturated solution may be a chemical solution containing the utmost concentration of a solute dissolved within the solvent.

For example, a saturated solution of salt in water is that during which no more salt is often dissolved.

This added salt will just sediment right down to the rock bottom of the vessel.

Churning

Churning is the process of shaking up cream or milk to form butter. 

FAQ (Frequently Asked Questions)

Q1. What is Separation of Substances? 

Ans: We all must have observed our parents and grandparents separating small stones or pebbles from the rice grains, pulses, filtering tea leaves before the final consumption and many other things. The practice of Separation of drugs is typically required to get rid of or separate the specified substances from their mixtures.

Q2. Can Water Dissolve Substances?

Ans: 


Solution

A solution may be a homogeneous mixture composed of two or more substances.In such a mix , a solute may be a substance dissolved in another substance, referred to as a solvent.


Saturated Solution

A saturated solution may be a chemical solution containing the utmost concentration of a solute dissolved within the solvent.

For example, a saturated solution of salt in water is that during which no more salt is often dissolved.

This added salt will just sediment right down to the rock bottom of the vessel.


Churning

Churning is the process of shaking up cream or milk to form butter. 

Q3. What is Mixture and Separation?

Ans:


Mixtures

A mixture may be a material made from two or more different substances which are mixed but aren't combined chemically.


Separation

Separation is that process of separating one or more components from a mix . Example: distillation, sedimentation, filtration etc.

Q4. What is Condensation and Evaporation?

Ans: 


Condensation

The process of conversion of water vapor into its liquid form thanks to contact with a cooler surface is called condensation.

Example: When water droplets are formed on a metallic lid when water boils. 


Evaporation

When water is converted into vapour, that process is termed as Evaporation. This process of evaporation takes place continuously wherever water is present irrespective of the surface and temperature.