Sodium Acid Pyrophosphate (SAPP)
Product Overview:
Identification of Substance: disodium dihydrogenpyrophosphate
CAS #: 7758-16-9
Sodium acid pyrophosphate (SAPP) Food Grade is a functional phosphate compound used across food processing and metal finishing applications. It is commonly employed as a leavening acid in baking powder and refrigerated dough products, providing controlled, slow-acting carbon dioxide release for consistent baked goods. Additionally, it serves as a color and moisture retention agent in processed meat and seafood, preventing discoloration and improving texture during storage. SAPP is also utilized as a cleaning and brightening agent in metal finishing operations, particularly in aluminum surface treatment. Furthermore, it finds applications in general food manufacturing processes requiring a food-grade acid pyrophosphate.
Relevant identified uses:
Food additive
Additive for cosmetic or pharmaceutic preparations
Acid regulator
Documentation:
Technical Information:
Purity
≥ 95.0 %
P2O5
63.0 – 64.5 %
Loss on drying
≤ 0.5 %
pH
3.7 – 5.0
Arsenic
≤ 3 ppm
Lead, as Pb
≤ 1 ppm
Cd
≤ 1 ppm
Hg
≤ 1 ppm
Heavy metal
≤ 10 ppm
Flourines
≤ 10 ppm
Bulk Density
800 – 1,050 g/l
Sieve test through 100 mesh
≥ 95 %
Water insoluble
≤ 0.50 %
ROR
28
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