CHEMISTRY PROJECT ON FOAMING CAPACITY OF SOAPS PDF

Soaps are sodium or potassium salts of higher fatty acids like stearic, palmitic and oleic acids can be either saturated or unsaturated. They contain a long hydrocarbon chain of about carbon with one carboxylic acid group as the functional group. A soap molecule a tadpole shaped structure, whose ends have different polarities. At one end is the long hydrocarbon chain that is non-polar and hydrophobic, i. At the other end is the short polar carboxylate ion which is hydrophilic i. When soap is shaken with water it becomes a soap solution that is colloidal in nature.

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Soaps are sodium or potassium salts of higher fatty acids like stearic, palmitic and oleic acids can be either saturated or unsaturated. They contain a long hydrocarbon chain of about carbon with one carboxylic acid group as the functional group. A soap molecule a tadpole shaped structure, whose ends have different polarities. At one end is the long hydrocarbon chain that is non-polar and hydrophobic, i. At the other end is the short polar carboxylate ion which is hydrophilic i.

When soap is shaken with water it becomes a soap solution that is colloidal in nature. Agitating it tends to concentrate the solution on the surface and causes foaming.

This helps the soap molecules make a unimolecular film on the surface of water and to penetrate the fabric. The long non-polar end of a soap molecule that are hydrophobic, gravitate towards and surround the dirt fat or oil with dust absorbed in it. The short polar end containing the carboxylate ion, face the water away from the dirt.

Cleansing action of soaps decreases in hard water. Hard water contains Calcium and magnesium ions which react with sodium carbonate to produce insoluble carbonates of higher fatty acids. This hardness can be removed by addition of Sodium Carbonate. Chemistry Project on Spectroscopy. Apparatus: 5 test tubes, 5 conical flasks ml , test tube stand, Bunsen burner and stop watch. Materials Required: 5 different samples of soap and distilled water Theory: The foaming capacity of a soap sample depends upon the nature of soap and its concentration.

This can be compared for various samples of soaps by taking the same concentration of solution and shaking them. The foam is formed and the time taken for disappearances of foam in all cases is compared. The lesser the time taken by a solution for the disappearance of foam, the lower is its foaming capacity.

Stop watch is started immediately and the time taken for the disappearance of foam is noted. Conclusions: The soap for which the time taken for the disappearance of foam is highest has maximum foaming capacity and is the best quality soap among the soaps tested.

Apparatus: 3 test tubes, test tube stand, Bunsen burner and stop watch. Materials Required: 0. Theory: When sodium or potassium soaps are put into water containing calcium and magnesium ions Hard water , results in formation of scum which applies grey appearance on the cloth.

To achieve the same washing or cleaning action, more soap must be added. Calcium usually enters the water as either calcium carbonate CaCO 3 , in the form of limestone and chalk, or calcium sulphate CaSO 4 , in the form of other mineral deposits.

Record the observations in a tabular form. Conclusions: Foaming capacity of soap in maximum in distilled water. The foaming capacity of soap increases on the addition of Sodium Carbonate. To compare the foaming capacities of five different commercial soaps. Materials Required:. The foaming capacity of a soap sample depends upon the nature of soap and its concentration. Amount of each soap sample taken. Amount of distilled water taken. Volume of each soap solution taken. Volume of distilled water added.

The soap for which the time taken for the disappearance of foam is highest has maximum foaming capacity and is the best quality soap among the soaps tested. Study the effect of the addition of Sodium Carbonate Washing Soda on the foaming capacity of different soap solutions. When sodium or potassium soaps are put into water containing calcium and magnesium ions Hard water , results in formation of scum which applies grey appearance on the cloth. Foaming capacity of soap in maximum in distilled water.

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Foaming Capacity of Soaps investigatory projects chemistry class 12 cbse

Slideshare uses cookies to improve functionality and performance, and to provide you with relevant advertising. If you continue browsing the site, you agree to the use of cookies on this website. See our User Agreement and Privacy Policy. See our Privacy Policy and User Agreement for details. Published on Feb 1, This project contains topic "Effect of sodium carbonate on foaming capacity of Soap" with several observations to help class XII students for their projects.

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foaming capacity of soap

Submitted by Editor. Anita Thomas, my grateful thanks to her for the able teaching and guidance. I thank Mr. Harsha Kumar, the Lab assistant for his cooperation. Soaps and detergents remove dirt and grease from skin and clothes.

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Chemistry Project on Foaming Capacity of Soaps

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