Bicarbonate of Soda 100g Sodium bicarbonate, commonly known as baking soda or bicarbonate of soda, is a chemical compound made of sodium and hydrogen carbonate. It is a salt composed of a sodium cation and a bicarbonate anion. Sodium bicarbonate is a white solid that is crystalline, but often appears as a fine powder. Uses: Baking (it’s a raising agent), cleaning, deodorising(great for smelly shoes!!), making toothpaste or beauty treatments..... Storage instructions Keep in a cool and dry place out of direct sunlight.