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Chapter: 11th Chemistry : UNIT 4 : Hydrogen

Uses of hydrogen peroxide

The oxidizing ability of hydrogen peroxide and the harmless nature of its products, i.e., water and oxygen.

Uses of hydrogen peroxide:

 

The oxidizing ability of hydrogen peroxide and the harmless nature of its products, i.e., water and oxygen, lead to its many applications. It is used in water treatment to oxidize pollutants, as a mild antiseptic, and as bleach in textile, paper and hair-care industry.

 

Hydrogen peroxide is used to restore the white colour of the old paintings which was lost due to the reaction of hydrogen sulphide in air with the white pigment Pb3(OH)2(CO3)2 to form black colored lead sulphide. Hydrogen peroxide oxidises black coloured lead sulphide to white coloured lead sulphate, there by restoring the colour.

 

PbS + 4H2O2 → PbSO4 + 4 H2O


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11th Chemistry : UNIT 4 : Hydrogen : Uses of hydrogen peroxide |


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