Properties of base | Characteristics of base

Bases and Their Characteristics

Definition of Base: Bases are substances that can neutralize acids by accepting hydrogen ions (H⁺) or donating hydroxide ions (OH⁻) in a solution. They often have a bitter taste and a slippery feel.

Characteristics of Bases

• Bases have a bitter taste (though tasting chemicals is not recommended!).
• They feel slippery or soapy when touched.
• Bases affect indicators by turning red litmus paper to blue.
• When dissolved in water, bases release ions that allow the solution to conduct electricity.
• Bases react with acids to form salt and water, a process called neutralization.
• Many bases are corrosive and should be handled carefully.

Examples of Common Bases

• Sodium hydroxide (NaOH)
• Potassium hydroxide (KOH)
• Calcium hydroxide (Ca(OH)₂)
• Ammonia (NH₃)