STPP Sodium tripolyphosphate for food preservative emulsifier humectant

  Product Detail  

• • Sodium tripolyphosphate (STPP) is a sodium salt of triphosphoric acid with the chemical formula Na5P3O10. It's a versatile chemical compound used in various applications, including detergents, food processing, and water treatment. 

    
    
    Here's a more detailed look at its properties and uses:
    Properties:
    • Chemical Formula: Na5P3O10
    • Molecular Weight: 367.86 g/mol
    • Appearance: White, crystalline powder

    
    
  • Solubility: Highly soluble in water
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  • Melting Point: 622°C
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  • Density: 2.52 g/cm³
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  • pH Buffering: Acts as a pH buffer
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  • Chelating Agent: Forms stable complexes with metal ions
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  • Water Retention: Enhances water retention in food products 
    
    
  • Uses:
    
    
  • Detergents:

    STPP is a key ingredient in laundry detergents, acting as a builder to soften water, suspend dirt, and enhance cleaning performance. 

    
    
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  • Food Processing:

    In food, STPP is used as a preservative, emulsifier, and to retain moisture. It can improve the texture and appearance of seafood, meats, and poultry. 

    
    
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  • Water Treatment:

    STPP acts as a water softener by sequestering calcium and magnesium ions, preventing scale formation. 

    
    
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  • Other Applications:

    It's also used in various industrial processes, including ceramics, leather tanning, and oil drilling.
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    Physical properties
    Melting point: 622℃
    Density: 2.52 g/cm³ (20℃)
    Solubility: Easily soluble in water, solubility is 20 g/100 ml at 20℃
    Storage conditions: No special restrictions, but avoid contact with strong oxidants and strong acids