Bases often have a slippery or soapy feel when touched, which is due to their ability to react with oils and fats on the skin to form soaps. Bases are compounds that can take protons and donate pairs of electrons.
Common examples of bases are Sodium hydroxide (NaOH), Potassium hydroxide (KOH), Ammonia (NH₃), and Calcium hydroxide (Ca(OH)₂). They are utilized in soap and detergent manufacturing, acidic soil treatment, and a variety of industrial applications.