Sodium aluminum phosphate

CAS Number
7785-88-8
EC Number
232-090-4
Industries: Food & Nutrition

What is Sodium aluminum phosphate?

Sodium aluminum phosphate (CAS 7785-88-8), also known by its food additive designation E541, is an inorganic salt used primarily as a leavening acid and buffering agent in food manufacturing.

Where is Sodium aluminum phosphate used?

  • Commercial baking: slow-release leavening acid in self-rising flours and baking powders
  • Refrigerated dough systems: controlled gas release during oven spring rather than on mixing
  • Processed cheese: emulsifying salt that sequesters calcium ions, improving melt characteristics and texture consistency in sliced and block formats
  • Pharmaceutical tablets: pH buffer where acid-stable processing conditions are required
  • Processed meat and seafood: sequestering action helps stabilize color and extend shelf stability
  • SAIP is the common industry shorthand buyers use when sourcing this material for baked goods applications.

Commercial specifications

  • Bulk supply is typical in multi-tonne quantities, with smaller packaging available for formulators

Other Names (Synonyms)

phosphoric acid aluminium sodium salt|SAIP|Aluminum sodium phosphate|Phosphoric acid, aluminum sodium salt|RefChem:183774|ALUMINIUM(3+) ION SODIUM PHOSPHATE|Phosphoric acid, aluminum sodium salt (1:?:?)|E541

Contact us for supply of Sodium aluminum phosphate

Request Quote

What are the physical properties of Sodium aluminum phosphate?

Appearance White powder; odorless. Insoluble in water; soluble in hydrochloric acid.
Odor Odorless
Log P -2.148 (est)
Call Request Quote