Ingredient · E503ii

Ammonium Bicarbonate E 503ii

Source
Not animal-derived
Allergen
No
Role in food
This ingredient is used as a leavening agent in baking, particularly in cookies and …

What is Ammonium Bicarbonate E 503ii?

Ammonium bicarbonate is a chemical compound that is a source of ammonia and carbon dioxide. It is produced industrially by reacting ammonia and carbon dioxide with water. It is a white crystalline powder.

Is Ammonium Bicarbonate E 503ii vegan?

Ammonium Bicarbonate E 503ii is not animal-derived. Products that contain it can still include other animal-derived ingredients, so check the full ingredient list.

Is Ammonium Bicarbonate E 503ii a major allergen?

Not a major allergen.

What is Ammonium Bicarbonate E 503ii used for?

This ingredient is used as a leavening agent in baking, particularly in cookies and crackers.

Is Ammonium Bicarbonate E 503ii safe?

Ammonium bicarbonate is generally recognized as safe (GRAS) by the FDA for use in food.

Why it's used

This ingredient is used as a leavening agent in baking, particularly in cookies and crackers. When heated, it releases carbon dioxide gas, which causes dough to rise and become lighter. It is often used in recipes where a crisp texture is desired.

Health notes

Ammonium bicarbonate is generally recognized as safe (GRAS) by the FDA for use in food. It is a source of ammonia, which is naturally present in the body. The Joint FAO/WHO Expert Committee on Food Additives (JECFA) has evaluated ammonium bicarbonate and found no safety concerns at typical intake levels. No specific upper intake limits have been set.

Allergen info

Not a major allergen.

Foods that contain Ammonium Bicarbonate E 503ii

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Last updated: October 5, 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.