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📌 Product Description
Sodium Acid Pyrophosphate (SAPP) is a white, water-soluble powder widely used in the food, industrial, and chemical sectors. It functions as a leavening agent, buffering agent, dispersing agent, and water retention agent in various applications.
Chemical Formula: Na₂H₂P₂O₇
CAS Number: 7758-16-9
E Number: E450(i)
Molecular Weight: 221.94 g/mol
Solubility: Soluble in water, insoluble in alcohol
pH (1% solution): 3.5 – 5.0
📌 Specification (Typical Analysis)
Food Grade SAPP
| Item | Standard |
|---|---|
| Appearance | White powder or granular |
| Assay (Na₂H₂P₂O₇) | ≥ 95.0% |
| pH (1% solution) | 3.5 – 5.0 |
| Water Insoluble Matter | ≤ 1.0% |
| Fluoride (F) | ≤ 10 mg/kg |
| Arsenic (As) | ≤ 3 mg/kg |
| Heavy Metals (Pb) | ≤ 2 mg/kg |
| Loss on Ignition (550°C) | ≤ 0.5% |
Technical Grade SAPP
| Item | Standard |
|---|---|
| Assay (Na₂H₂P₂O₇) | ≥ 95.0% |
| pH (1% solution) | 3.5 – 5.0 |
| Water Insoluble Matter | ≤ 1.5% |
| Heavy Metals (Pb) | ≤ 10 mg/kg |
| Loss on Ignition | ≤ 1.0% |
📌 Applications
1. Food Industry
✅ Leavening Agent: Used in baking powder, reacting with sodium bicarbonate to release CO₂ for dough rising.
✅ Cheese & Meat Processing: Helps retain moisture and improve texture.
✅ Seafood Treatment: Prevents discoloration in processed seafood.
✅ French Fries Processing: Reduces acrylamide formation during frying.
2. Industrial Applications
✅ Water Treatment: Acts as a dispersing agent to prevent scale formation.
✅ Ceramics Industry: Used as a dispersant to improve glaze consistency.
✅ Dairy & Beverage: Acts as a buffering agent to maintain pH stability.
📌 Packaging & Storage
Packaging:
25 kg kraft paper bags with PE inner liner
Jumbo bags available upon request
Storage:
Store in a cool, dry, and well-ventilated area
Keep away from moisture and strong acids
Shelf Life: 24 months from the production date