Tetrasodium Pyrophosphate (TSPP) CAS No.7722-88-5
Tetrasodium Pyrophosphate (TSPP) CAS No. 7722-88-5, is a versatile sodium phosphate compound widely used in food, industrial, and household applications. This white, crystalline powder is highly soluble in water and serves as a buffering agent, emulsifier, and chelating agent. TSPP meets food-grade and industrial standards, ensuring safety and efficacy across various uses.
Technical Specifications
| Property | Value/Description |
|---|---|
| Chemical Formula | Na₄P₂O₇ |
| CAS Number | 7722-88-5 |
| Molecular Weight | 265.90 g/mol |
| Appearance | White granules or powder |
| Purity | ≥94% (as Na₄P₂O₇) |
| P₂O₅ Content | 52-54% |
| pH (1% Solution) | 10.0-10.5 |
| Solubility in Water | ≥1,000 g/L at 20°C |
| Density | 2.53 g/cm³ |
| Loss on Ignition | ≤2.0% |
| Storage | Cool, dry, ventilated area; avoid acids |
These specifications ensure TSPP’s reliability in demanding production environments.
Applications
Food and Beverage Industry
- Meat and Poultry Processing: Injected at 0.2-0.4% to retain moisture, tenderize, and prevent drip loss in hams, sausages, and ready-to-eat meals.
- Dairy and Desserts: Emulsifier in processed cheese and puddings, achieving smooth meltability and reduced syneresis.
- Canned Goods and Beverages: Dispersant in soups and soft drinks to suspend solids and sequester metals for extended freshness.
Industrial and Household Uses
- Detergents and Cleaners: Builder in phosphate-based formulas to soften water and boost surfactant efficiency, effective against grease and scale.
- Water Treatment: Scale inhibitor in cooling towers and boilers, reducing maintenance by 20-30%.
- Cosmetics and Personal Care: Thickener and stabilizer in shampoos and lotions for improved viscosity and ion control.
Why Choose Our TSPP?
Our Tetrasodium Pyrophosphate is refined from top-tier sodium phosphates with stringent controls on impurities such as arsenic (<3 ppm) and lead (<10 ppm), offering superior chelation and minimal off-flavors. Processors experience enhanced yield and reduced additive levels, with documented 15% improvements in emulsion stability. Packaged in 25kg bags, 50kg drums, or 1000kg big bags, we provide anhydrous or decahydrate forms tailored to your humidity requirements and certifications like Kosher and Halal.
Frequently Asked Questions (FAQs)
What is Tetrasodium Pyrophosphate (TSPP)?
Tetrasodium Pyrophosphate (TSPP) is the sodium salt of pyrophosphoric acid with formula Na₄P₂O₇ and CAS 7722-88-5, acting as a sequestrant and emulsifier. It’s an alkaline white powder used to chelate metals and stabilize formulations in food and cleaners.
How is TSPP used in meat processing?
Apply TSPP via brine injection or tumbling at 0.3-0.5% of meat weight to bind proteins, retain juices, and enhance slicing yield. It works synergistically with salt for optimal water-holding capacity.
Is TSPP safe for food applications?
Yes, TSPP is FDA GRAS and JECFA-approved for use up to 5 g/kg in foods, with phosphorus readily metabolized and no ADI limit due to its safety in regulated amounts.
What is the shelf life of TSPP?
In sealed, moisture-free storage at room temperature, TSPP remains stable for 2-3 years, resisting hydrolysis and maintaining full sequestering potency.
Can TSPP be blended with other phosphates?
TSPP integrates well with tripolyphosphates for amplified chelation but may form gels with high calcium; pilot mixing tests are recommended for custom blends.
Does TSPP affect the pH of food products?
TSPP’s alkaline pH (10.0-10.5) slightly raises solution pH, ideal for buffering acidic mixes, but use sparingly in low-pH items to avoid over-alkalinity.
What packaging formats does TSPP come in?
We supply 25kg moisture-barrier bags, 50kg HDPE drums, and 1000kg palletized supersacks, all with anti-caking agents for hassle-free handling and export.
For dosage optimization, compliance checks, or bulk orders, our experts are ready to help.
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