Disodium Pyrophosphate (CAS 7758-16-9), also known as Sodium Acid Pyrophosphate (SAPP), is a chemical compound prized for its unique properties and functional versatility. As a key product offered by NINGBO INNO PHARMCHEM CO.,LTD., understanding its chemical characteristics is fundamental to appreciating its widespread use in various industries.

Chemically, Disodium Pyrophosphate is an inorganic salt of pyrophosphoric acid, with the molecular formula Na₂H₂P₂O₇. It typically appears as a white, crystalline powder or granules and is readily soluble in water. Its aqueous solutions are mildly acidic, with a pH typically ranging from 3.5 to 4.5 for a 1% solution. This characteristic acidity is crucial for its role as a leavening acid in baking.

One of the primary functions of Disodium Pyrophosphate is its role as a leavening agent. When combined with baking soda, it initiates a chemical reaction that produces carbon dioxide gas, essential for the rise and texture of baked goods. The rate of this reaction can be controlled by the physical form and grade of the SAPP, allowing bakers to achieve specific leavening profiles, from rapid to slow acting.

Beyond leavening, Disodium Pyrophosphate acts as a highly effective buffering agent. It helps to stabilize the pH of food products, preventing undesirable shifts that can affect flavor, color, and texture. This buffering capacity is also utilized in industrial applications where maintaining a specific pH is critical for process efficiency.

Furthermore, its chelating properties are significant. Disodium Pyrophosphate can bind to metal ions, such as iron and magnesium. In food processing, this prevents discoloration in products like potatoes and seafood by sequestering these reactive metals. This ability to 'chelate' is a key functional attribute that enhances product quality and stability.

As a supplier of quality chemicals, NINGBO INNO PHARMCHEM CO.,LTD. ensures that its Disodium Pyrophosphate exhibits these essential properties. Whether used for its leavening power in baked goods, its buffering capacity in food formulations, or its chelating ability in industrial processes, Disodium Pyrophosphate remains a fundamental and highly functional chemical compound.