Sodium Tripolyphosphate(STPP) CAS No.7758-29-4

Key Features and Benefits

• Superior Sequestration: Binds calcium and magnesium ions to prevent scale formation, boosting detergent performance and water treatment efficacy.

  
  

• pH Buffering Excellence: Maintains alkaline conditions for optimal soil removal and emulsion stability in cleaning and food applications.

  
  

• Versatile Dispersion: Acts as a deflocculant in suspensions, improving flow and preventing settling in ceramics, textiles, and drilling fluids.

  
  

• Food-Grade Functionality: Enhances moisture retention and texture in proteins, extending shelf life without altering flavor or appearance.

  
  

• High Purity and Compliance: Low impurity levels ensure safety for direct food contact and industrial use, with eco-conscious production minimizing environmental impact.

  
  

Technical Specifications

Note: Hexahydrate form available upon request. Custom grades, packaging, and certifications provided. Each batch is tested for consistency and quality.

Applications

Sodium Tripolyphosphate is a multi-functional powerhouse, driving efficiency across key sectors with its unique chelating and stabilizing attributes:

• Detergents and Cleaning: Primary builder in laundry, dishwashing, and industrial cleaners; softens water, emulsifies oils, and suspends dirt for superior cleaning without residue.

  
  

• Food and Beverage: Sequestrant and texturizer in seafood, meats, and processed foods; improves water-binding capacity, tenderness, and yield while preventing discoloration.

  
  

• Water Treatment: Controls hardness and corrosion in boilers, cooling towers, and municipal systems, extending equipment life and reducing maintenance costs.

  
  

• Ceramics and Textiles: Dispersant in clay slips and dye baths, ensuring uniform particle suspension and vibrant color fixation for high-quality finishes.

  
  

• Other Industries: Tanning agent in leather processing, stabilizer in paper/pulp, and additive in drilling muds for oil/gas extraction, enhancing viscosity and fluid stability.

  
  

From household essentials to heavy-duty operations, our STPP delivers unmatched reliability and performance.

Frequently Asked Questions (FAQs)

What is Sodium Tripolyphosphate used for?

Sodium Tripolyphosphate (CAS 7758-29-4) is widely applied as a builder in detergents for water softening and soil removal, a sequestrant in foods to retain moisture and improve texture, and a dispersant in industrial processes like ceramics and water treatment.

Is STPP safe for food applications?

Yes, food-grade STPP is GRAS (Generally Recognized as Safe) and meets FCC and E 451(i) standards, allowing use in meat, seafood, and beverages at regulated levels to enhance quality without health risks.

What is the difference between anhydrous and hexahydrate forms?

The anhydrous form (CAS 7758-29-4) is denser and more stable for dry applications, while the hexahydrate (CAS 15091-98-2) offers higher solubility for liquid formulations. Both share core functionalities but differ in handling.

How should Sodium Tripolyphosphate be stored?

Store in a cool, dry, ventilated area in sealed containers to avoid moisture absorption and caking. Keep away from acids and oxidizers; it remains stable for 24 months under ideal conditions.

Does it contain heavy metals or impurities?

Our STPP is rigorously tested with limits like heavy metals ≤10 ppm, Pb ≤4 ppm, and As ≤3 ppm, ensuring purity for sensitive uses including food and pharmaceuticals.

Can I request samples or customized orders?

Yes, we offer free samples for evaluation and tailor specifications such as particle size or purity to your requirements. Contact us for details and rapid fulfillment.

Contact Us

Transform your processes with top-tier Sodium Tripolyphosphate—our dedicated team provides expert advice, competitive quotes, and seamless supply.

• Email: lisa@aozunchem.com

• WeChat/WhatsApp: +86-186 5121 5887

  
  

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