Sodium Acid Pyrophosphate (SAPP, CAS 7758-16-9) is a white crystalline powder. It is soluble in water and shows weak acidity in aqueous solution. This product is mainly used as food leavening agent and moisture retention agent, and also serves as chelating stabilizer for industrial applications. TNJ Chemical is the leading manufacturer and exporter since 2001. We guarantee high quality, competitive price, stable supply, fast delivery and tech support etc. To inquire more, please contact sales@tnjchem.com
Product Information
Chemical Name: Sodium Acid Pyrophosphate
Synonym: SAPP, Disodium Dihydrogen Pyrophosphate
CAS No.: 7758-16-9
Molecular Formula: Na₂H₂P₂O₇
Molecular Weight: 221.94
HS Code: 2835252000
Appearance: White powder or granules
Solubility: Soluble in water; insoluble in ethanol
pH (10 g/L solution): 4.0–5.0
Decomposition Temperature: 220 ℃
Character: Hygroscopic, aqueous solution hydrolyzes on heating
| Item | Range |
|---|---|
| Assay (Na₂H₂P₂O₇) | 95.0–100.5 % |
| P₂O₅ Content | 63.0–64.0 % |
| Water Insoluble Matter | ≤ 1.0 % |
| Loss on Drying | ≤ 0.5 % |
| Fluoride (F) | ≤ 50 mg/kg |
| Arsenic (As) | ≤ 3 mg/kg |
| Lead (Pb) | ≤ 2 mg/kg |
| Heavy Metals (as Pb) | ≤ 10 mg/kg |
Use & Application
Food grade SAPP acts as acid leavening agent for baking powder, cake, biscuit and frozen dough. It works as water retention agent for ham, meat and seafood to lock moisture and improve tenderness. It can also be used in instant noodles, detergents, water treatment and metal surface treatment as chelating stabilizer.
Packed in 25kg woven bag with inner PE liner. Store in cool, dry and ventilated warehouse.
Keep tightly sealed to prevent moisture absorption.
Keep away from high temperature and incompatible hazardous materials.
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