Bases

Bases can also be strong or weak.

Strong bases are very corrosive and can burn the skin.

Caustic soda or sodium hydroxide (NaOH) and caustic potash or potassium hydroxide (KOH) are strong and corrosive bases.

On the other hand, copper hydroxide [Cu(OH)2], zinc hydroxide [Zn(OH)2], and ammonium hydroxide (NH4OH) are weak bases.

Calcium Hydroxide (Slaked lime) [Ca(OH)2]

• It is used to neutralize the acidity in soils.

• It is an ingredient in whitewash and mortar.

• It is a component of the Bordeaux mixture used for protecting agricultural crops from pests.

• It is used in the preparation of dry mixes for painting and decorating.

Magnesium Hydroxide [Mg(OH)2]

• It is also called of Milk of Magnesia.

• It is used as an antacid or a laxative. It helps to correct excess acidity in the stomach.

Sodium Hydroxide [NaOH]

• It is also called of Caustic Soda

• It is used in the manufacture of paper, textiles, and detergents.

• In homes it is occasionally used to unblock drains.

•We can see many examples of bases in everyday life as well. Many substances or chemicals which we use in our daily life are actually bases such as drain cleaner, detergent, lubricating grease, baking soda or baking powder, soaps, toothpaste, mouth wash, chewing gum, hair dye, pesticides etc. •

There are acids and bases in our body, HCl is present in the stomach. The saliva in your mouth is basic in nature. Blood when healthy is also basic.