Question

What is decantation? Where is decantation used? Give two examples.​

Answer 1

Answer:

Defination

Decantation is a process for the separation of mixtures of immiscible liquids or of a liquid and a solid mixture such as a suspension. An incomplete separation is witnessed during the separation of two immiscible liquids

decantation is used for

Decantation can be used to separate immiscible liquids that have different densities. Decanting helps to refine the taste of the wine and allow the wine to bring the best out of it. It helps the wine in releasing the aroma and keeps it fresh. It allows the wine to breathe by encouraging oxidation

Example

1) A common example is decantation of oil and vinegar. When a mixture of the two liquids is allowed to settle, the oil will float on top of the water so the two components may be separated. Kerosene and water can also be separated using decantation

2) decantation is used to separate insoluble solids or liquid from liquid. Rain water is a mixture of mud and water. It is purified by decantation.

Hope it helps you.....

Answer 2

Decantation is pouring out of upper clear layer of liquid into another container to separate two immiscible liquids.

Explanation:

• Decantation is a process in which the separation of mixtures of immiscible liquid-like suspension takes place.

• Immiscible liquids are those that do not combine together to form a solution.

• Decantation is the process in which liquid is removed from the solid impurities which are settled at the bottom of a container.

• Decantation relies on gravity to pull precipitate out of the solution, so there is always some loss of product, either from the precipitate not fully falling out of the solution or from liquid remaining when separating it from the solid portion.

Decantation is used for separating two types of mixture:

1. Immiscible Liquid Separation : Decantation is used to separate two liquids of different densities. Effective separation of two immiscible liquids is done.
2. Liquid-Solid Separation : The decantation process also helps to separate insoluble solids from liquid. This method is used in laboratory.

Examples:

1. Oil and water: Oil floats on top of water. After letting a mixture of oil and water sit, the oil can be poured off of the water. In a separatory funnel, the water can be drained away from the oil.
2. Milk and cream: Decantation separates cream from milk. Cream rises to the top of the liquid and is easily skimmed off.