Sodium bicarbonate, or sodium hydrogen carbonate, as it is sometimes called, has no discernible affect on water temperature when dissolved in water. Baking soda has the molecular formula of NaHCO3. It is a white crystalline powder and has an alkaline, slightly salty taste. It is a component of the mineral natron and found naturally dissolved in many mineral springs. Baking soda has amphoteric properties, which means it can be used to neutralize acids and bases in chemical laboratories. In it's natural mineral form, nahcolite, it is found dissolved in bile in the human digestive system. Bile is introduced in the small and large intestines, it effectively neutralizes the acidic part of the waste product and helps prepare it for excretion through the duodenum.