Ingredient · E450(iii)

Sodium Acid Pyrosphosphate

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Source
Not animal-derived
Allergen
No
Role in food
This ingredient is often used as a leavening agent in baked goods, helping them …

What it is

Sodium acid pyrophosphate is a white, crystalline powder. It is a salt formed from sodium and pyrophosphoric acid, which is a form of phosphoric acid. It is manufactured through a chemical process.

Why it's used

This ingredient is often used as a leavening agent in baked goods, helping them to rise. It also acts as a preservative and a buffering agent in processed foods. It is commonly found in frozen appetizers, burgers, and baked goods.

Health notes

In the U.S., sodium acid pyrophosphate is generally recognized as safe (GRAS) by the FDA for use in food. It is also approved as a food additive. JECFA and EFSA have evaluated this substance. At typical dietary levels, it is not associated with adverse health effects. However, excessive intake of phosphates from all sources can be a concern for individuals with kidney problems.

Allergen info

Sodium acid pyrophosphate is not derived from any of the nine major allergens recognized by the FDA. It does not contain gluten.

Products containing Sodium Acid Pyrosphosphate

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Last updated: September 28, 2026

Note: This site presents label data from USDA FoodData Central for general information. It is not medical advice. Check the package label; formulations change.