Chemical formula: NaHCO3
Other names: baking soda, Sodium hydrogen carbonate, Soda Bicarbonate
Sodium bicarbonate is a chemical substance made up of sodium ions and bicarbonate ions. It is a white crystalline or granular powder. It is odorless and salty. When mixed with acid, it produces carbon dioxide gas, which causes the dough to expand (carbon dioxide is an important by-product of sodium bicarbonate combination with an acid)