Bicarbonate salts are chemical compounds that contain the bicarbonate ion, HCO₃⁻. They are commonly found in nature and play a vital role in various biological and chemical processes. One of the most well-known bicarbonate salts is sodium bicarbonate, often referred to as baking soda, which is used in cooking and as a leavening agent. These salts are also important in maintaining the pH balance in the body and are used in various applications, including medicine and environmental science. For example, potassium bicarbonate is used as a dietary supplement and in agriculture to improve soil quality.