Write short note on or Explain:Man-made detergents

1.	Write short note on or Explain:Man-made detergents
Answer» 1. Detergent which is made by processing naturally available material, soap is a manmade detergent which has been in use since ancient times. 2. In those days soap was prepared by using animal fat and wood ash. 3. Therefore two types of soap (a) Hard Soap is used for washing clothes. It is a sodium salt of fatty acids, (b) Softsoap is used for bathing. It is a potassium salt of fatty acids. 4. It does not cause irritation of the skin. 5. But we can’t use soap in hard water because soap does not give lather but forms a scum. So, soap loses its cleansing property so now synthetic detergent have taken the place of soap. 6. Synthetic detergents are obtained by subjecting these raw materials (fats and kerosene) to a variety of chemical processes. These can be used in hard water as well.

Answer»

1. Detergent which is made by processing naturally available material, soap is a manmade detergent which has been in use since ancient times.

2. In those days soap was prepared by using animal fat and wood ash.

3. Therefore two types of soap (a) Hard Soap is used for washing clothes. It is a sodium salt of fatty acids, (b) Softsoap is used for bathing. It is a potassium salt of fatty acids.

4. It does not cause irritation of the skin.

5. But we can’t use soap in hard water because soap does not give lather but forms a scum. So, soap loses its cleansing property so now synthetic detergent have taken the place of soap.

6. Synthetic detergents are obtained by subjecting these raw materials (fats and kerosene) to a variety of chemical processes. These can be used in hard water as well.

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