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Soaps and Detergents...

Soaps and Detergents

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Soaps and detergent are two artificially synthesized substances which are indispensable in our dialy activity.
Soaps : Chemical composition wise soaps are the sodium salts of fatty acids. Examples of different fatty acids are olive oil, cotton seed oil, repeseed oil etc. When sodium hydroxide solution is treated with vegetables oil, soap is produced. Soap forms precipitate in hard water and does not lather properly.
Hence soap is ineffective in hand water.
Detergents : Detergents are sodium salt of alkyl hydrogen sulphate. Detergents do not form precipitates in hard water and can be used effectively in hand water. The cleansing of detergent is superior to that of soap. Examples of a detergent is sodium lauryl sulphate.
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What is the difference between soaps and detergements ? State in brief the cleaing action of soaps is removing an oily spot from a fabric. Why are soaps not very effective whene a fabric is washed in hard water ? How is this problem resolved ? .