Sodium bicarbonate (NaHCO3) is a chemical compound that is used in a variety of products, including baking soda, antacids, toothpaste, and cleaning products. It is a white, odorless powder that is soluble in water. Sodium bicarbonate can be used to neutralize acid, improve the texture of baked goods, and act as a raising agent. It can also be used to absorb odors, clean surfaces, and even treat medical conditions such as heartburn and urinary tract infections.