food additive/Sodium Acid pyrophosphateSAPP

Molecular Formula： Na2H2P2O7 Molecular Weight： 221.95 CAS No.: 7758-16-9 EINECS No.: 231-835-0 Sodium acid pyrophosphate (SAPP) is a common ingredient in baking powder. It is a white, odorless powder that is soluble in water. SAPP is an acidulant that reacts with baking soda (sodium bicarbonate) to produce carbon dioxide gas, which helps dough and batter rise. SAPP is often used in baking powder formulations that are labeled as “double-acting.” This means that the baking powder releases some carbon dioxide gas as soon as it is mixed with a liquid, and then releases more gas when it is heated in the oven. SAPP is also used in other food applications, such as meat processing, to help control the pH of the product and prevent spoilage. It is generally recognized as safe (GRAS) by the U.S. Food and Drug Administration (FDA) when used in accordance with good manufacturing practices.