[Chemical name] sodium bicarbonate [Chemical formula] NaHCO3 [Common or alternative name] Baking Soda, Bicarbonate of Soda [Source and description] 
Grocery baking section; "single action baking soda" NB: Baking soda is pure sodium bicarbonate, but baking powder has other ingredients, such as potassium tartrate and sodium monophosphate. Double action baking powder contains single action baking powder, a 'high temperature acid', and corn starch.