What are the applications of neutralisation in everyday life?

Neutralisation is used in everyday life in antacids, soaps, fertilisers, and in treating bee stings and wasp stings.

Neutralisation reactions are incredibly useful in our daily lives. One of the most common applications is in the production of antacids. When we eat, our stomach produces hydrochloric acid to help digest food. However, too much acid can cause heartburn or indigestion. Antacids, such as milk of magnesia or calcium carbonate, are bases that neutralise the excess acid, providing relief from the discomfort.

Another everyday use of neutralisation is in the production of soaps. Soaps are made by the neutralisation of fatty acids with a strong base, usually sodium hydroxide. This process, known as saponification, produces glycerol and a fatty acid salt, which is the soap. The soap molecules have a hydrophilic (water-loving) end and a hydrophobic (water-hating) end. This allows them to surround and lift away dirt and oils from your skin.

Neutralisation is also used in agriculture, specifically in the production of fertilisers. Many soils are naturally acidic, and this acidity can be harmful to plants. Lime, which is a base, is often added to soil to neutralise the acidity and make it more suitable for plant growth. The neutralisation reaction produces water and a salt, which can provide essential nutrients for the plants.

Finally, neutralisation can be used to treat bee stings and wasp stings. Bee stings are acidic and can be neutralised with a weak base, such as baking soda. On the other hand, wasp stings are alkaline and can be neutralised with an acid, such as vinegar. This neutralisation can help to reduce the pain and swelling associated with the sting.