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BASES – CBSE NCERT SCIENCE (CHEMISTRY)

Published: 4 years ago

Category: CBSE, Education, Science

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BASES – CBSE NCERT SCIENCE (CHEMISTRY)

Bases and Uses of bases in our daily lives

A base is a substance that, in aqueous solution, is slippery to touch, tastes bitter, and changes the colour of indicators (e.g., turns red litmus paper blue), reacts with acids to form salts, and promotes certain chemical reactions (base catalysis).

Uses of bases in our daily life:

Ammonia:

It is essential for maintaining the acid-base balance in your body and so keeps you healthy.

It is used as a processing aid in thousands of food and beverage products.

Explosive nitrogen is created from ammonia.

Polymers acrylic and nylon use ammonia.

Aluminum hydroxide uses:

To treat symptoms of increased stomach acid, such as heartburn, upset stomach, sour stomach, or acid indigestion.

To reduce phosphate levels in people with certain kidney conditions.

Calcium hydroxide:

Treats damaged teeth, especially immature permanent teeth, to preserve the living tissue.

It is also used as an antibiotic during root canals.

The food shipping and storage industries use calcium hydroxide as it keeps fruits from ripening before it can be shipped to grocery stores across the country.

It is also used in iron refining.

In paper manufacturing, it is one chemical within the bleaching process that makes paper white.

It is even part of paper recycling, as a coagulant to help remove ink and dyes from waste paper before it is recycled into new paper.

Sodium Hydroxide:

Is also used quite a bit in food processing

Is often used in steps for peeling fruits and vegetables, processing cocoa and chocolate, thickening of ice cream, poultry scalding and soda processing

Olives are soaked in Sodium

Hydroxide along with other substances to make them black

It is also used in processes to make products including plastics, soaps rayon and textiles.

Soft pretzels (kind of a baked food) are also coated with the compound to give them a Chewy texture.

To revitalize acids in petroleum refining

For etching of aluminum

Magnesium hydroxide:

Reduces stomach acid and increases water in the intestines which may induce defecation.

It is used as a laxative to relieve occasional constipation (irregularity).

As an antacid to relieve indigestion, sour stomach, and heartburn.

It is also used as an antiperspirant deodorant and as a non-hazardous alkali to neutralize acidic wastewater.

This way Bases are very useful in our daily lives.

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