Sodium Acid Pyrophosphate (SAPP)
Sodium acid pyrophosphate (SAPP) is a common food additive with the chemical formula Na₂H₂P₂O₇. It's a white, crystalline powder that's odorless and has a slightly acidic taste.
Uses of SAPP
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Food Additive: SAPP is widely used in the food industry for various purposes:
- Buffering agent: It helps to maintain a consistent pH level in food products.
- Sequestrant: It binds to metal ions, preventing them from interacting with other ingredients and affecting the product's quality.
- Emulsifier: It helps to disperse ingredients that are normally incompatible, such as oil and water.
- Leavening agent: In combination with other ingredients, it can help to leaven baked goods.
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Industrial Applications: SAPP also has industrial applications, such as:
- Cleaning agents: It can be used as a component in cleaning products due to its ability to chelate metal ions.
- Water treatment: It can be used to soften water by removing calcium and magnesium ions.
