When used in the kitchen, sodium bicarbonate is more commonly known as baking soda.
Baking soda, or sodium bicarbonate, is a white crystalline powder that is commonly used in baking and cooking. When mixed with an acidic ingredient such as vinegar or lemon juice, it produces carbon dioxide gas, which causes dough and batter to rise. Baking soda is also used as a leavening agent in many recipes, as well as a natural cleaning agent and deodorizer. Additionally, baking soda is sometimes used as a remedy for heartburn and indigestion due to its alkaline properties.