Ingredient · E521

Sodium Aluminum Sulfate

Source
Not animal-derived
Allergen
No
Role in food
It is primarily used as a leavening agent in baked goods, often found in …

What is Sodium Aluminum Sulfate?

Sodium aluminum sulfate is an inorganic salt that appears as a white, crystalline powder. It is produced through chemical synthesis, combining aluminum hydroxide, sulfuric acid, and sodium sulfate.

Is Sodium Aluminum Sulfate vegan?

Sodium Aluminum Sulfate is not animal-derived. Products that contain it can still include other animal-derived ingredients, so check the full ingredient list.

Is Sodium Aluminum Sulfate a major allergen?

Not a major allergen.

What is Sodium Aluminum Sulfate used for?

It is primarily used as a leavening agent in baked goods, often found in baking powder formulations.

Is Sodium Aluminum Sulfate safe?

In the United States, sodium aluminum sulfate is an FDA-approved food additive.

Why it's used

It is primarily used as a leavening agent in baked goods, often found in baking powder formulations. When combined with moisture and heat, it reacts to produce carbon dioxide gas, which helps doughs and batters rise, giving products a light and airy texture. It is commonly used in cakes, cookies, and pizza crusts.

Health notes

In the United States, sodium aluminum sulfate is an FDA-approved food additive. JECFA has evaluated sodium aluminum sulfate and set an acceptable daily intake. Concerns have been raised about aluminum intake from food additives and its potential link to neurological conditions. However, major scientific and regulatory bodies, including JECFA, have concluded that there is no clear evidence of harm at typical dietary exposure levels from food additives.

Allergen info

Not a major allergen.

Foods that contain Sodium Aluminum Sulfate

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Betty Crocker Gluten Free Pizza Crust Mix GENERAL MILLS SALES INC. Betty Crocker Gluten Free Pizza Crust Mix Baking/Cooking Mixes/Supplies 351kcal 5.4Protein 4.0Fat 75.7Carbs Sausage, Egg & Cheddar Cheese Stuffed Buttermilk Biscuit, Sausage, Egg & Cheddar Cheese ConAgra Foods Packaged Foods, LLC Sausage, Egg & Cheddar Cheese Stuffed Buttermilk Biscuit, Sausage, Egg & Cheddar Cheese Frozen Breakfast Sandwiches, Biscuits & Meals High in sodium — 48% DV per serving High in saturated fat — 45% DV per serving High in cholesterol — 32% DV per serving 289kcal 8.4Protein 14.8Fat 29.6Carbs Glazed Cinnamon Mini Rolls, Glazed Cinnamon Kingston Marketing Co Glazed Cinnamon Mini Rolls, Glazed Cinnamon Cakes, Cupcakes, Snack Cakes 342kcal 5.3Protein 13.2Fat 50Carbs Fajita Chicken Seasoned Chicken And Rice In A Savory Fajita Sauce With A Selection Of Bell Peppers And Onion Skillet Dinner, Fajita Chicken Topco Associates, Inc. Fajita Chicken Seasoned Chicken And Rice In A Savory Fajita Sauce With A Selection Of Bell Peppers And Onion Skillet Dinner, Fajita Chicken Frozen Dinners & Entrees 81kcal 5.0Protein 1.0Fat 12.6Carbs Chicken Alfredo Seasoned Chicken With Pasta In A Creamy Alfredo Sauce With Carrots, Broccoli And Peas Skillet Dinner, Chicken Alfredo Topco Associates, Inc. Chicken Alfredo Seasoned Chicken With Pasta In A Creamy Alfredo Sauce With Carrots, Broccoli And Peas Skillet Dinner, Chicken Alfredo Frozen Dinners & Entrees High in sodium — 20% DV per serving 116kcal 7.1Protein 2.5Fat 15.7Carbs Hand-Made Red Chile & Stone Ground Corn Pork Tamales, Red Chile & Stone Ground Corn El Encanto Inc Hand-Made Red Chile & Stone Ground Corn Pork Tamales, Red Chile & Stone Ground Corn Frozen Appetizers & Hors D'oeuvres High in sodium — 20% DV per serving High in saturated fat — 30% DV per serving 247kcal 7.1Protein 17.6Fat 17.6Carbs Frosted Pink Sugar Cookies, Frosted Kingston Marketing Co Frosted Pink Sugar Cookies, Frosted Ice Cream & Frozen Yogurt High in added sugars — 32% DV per serving 421kcal 2.6Protein 15.8Fat 68.4Carbs Frosted Unicorn Sugar Cookies Flavored Cotton Candy Frosting, Frosted Unicorn Sugar Cookies Kingston Marketing Co Frosted Unicorn Sugar Cookies Flavored Cotton Candy Frosting, Frosted Unicorn Sugar Cookies Cookies & Biscuits High in added sugars — 32% DV per serving 421kcal 2.6Protein 15.8Fat 68.4Carbs Rich Frosted Donuts, Rich Frosted Bimbo Bakeries USA, Inc. Rich Frosted Donuts, Rich Frosted Cakes, Cupcakes, Snack Cakes High in saturated fat — 65% DV per serving High in added sugars — 34% DV per serving 424kcal 3.4Protein 30.5Fat 50.9Carbs Burrito, Burrito Don Miguel Mexican Foods, Inc. Burrito, Burrito Breakfast Sandwiches, Biscuits & Meals High in sodium — 42% DV per serving High in saturated fat — 45% DV per serving High in cholesterol — 90% DV per serving 268kcal 11.1Protein 13.1Fat 26.8Carbs Pepperoni Crispy Crust Pizza, Pepperoni Frozen Specialties, Inc. Pepperoni Crispy Crust Pizza, Pepperoni Pizza High in sodium — 34% DV per serving High in saturated fat — 30% DV per serving 265kcal 8.2Protein 12.2Fat 32.0Carbs Flour Tortillas Extra Grande Burrito Mission Foods Inc Flour Tortillas Extra Grande Burrito Mexican Dinner Mixes High in sodium — 37% DV per serving 290kcal 8Protein 7Fat 49Carbs

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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.