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DESCRIPTION
Sodium tripolyphosphate (STP, sometimes STPP or sodium triphosphate or TPP) is an inorganic compound with formula Na5P3O10. Sodium triphosphate is the sodium salt of the polyphosphate penta-anion, which is the conjugate base of triPhosphoric Acid.Sodium tripolyphosphate is produced by heating a stoichiometric mixture of Disodium phosphate, Na2HPO4, and Monosodium Phosphate, NaH2PO4, under carefully controlled conditions.
The uses of Sodium tripolyphosphate also include using it as a preservative. Sodium Tripolyphosphate STPP can be used to preserve foods such as red meats, poultry, and seafood, helping them to retain their tenderness and moisture. Pet food and animal feed have been known to be treated with sodium triphosphate, serving the same general purpose as it does in human food.
SPECIFICATION
| ITEM | STANDARD |
| ASSAY (%) (Na5P3O10) | 95 MIN |
| APPEARANCE | WHITE GRANULAR |
| P2O5 (%) | 57.0 MIN |
| FLUORIDE (PPM) | 10MAX |
| CADMIUM (PPM) | 1 MAX |
| LEAD (PPM) | 4 MAX |
| MERCURY (PPM) | 1 MAX |
| ARSENIC (PPM) | 3 MAX |
| HEAVY MENTAL (AS PB) (PPM) | 10 MAX |
| CHLORIDES (AS CL) (%) | 0.025 MAX |
| SULPHATES (SO42-) (%) | 0.4 MAX |
| SUBSTANCES NOT DISSOLVED IN WATER (%) | 0.05 MAX |
| PH VALUE (%) | 9.5 – 10.0 |
| LOSS ON DRYING | 0.7% MAX |
| HEXAHYDRATE | 23.5% MAX |
| WATER-INSOLUBLE SUBSTANCES | 0.1% MAX |
| HIGHER POLYPHOSPHATES | 1% MAX |
Sodium Tripolyphosphate (STPP) in its technical grade form is a powerful and versatile compound that finds extensive applications across various industries. With its unique chemical properties and diverse functionalities, technical grade STPP plays a pivotal role in enhancing processes and products in fields ranging from detergents to water treatment and beyond. This article explores the broad spectrum of applications for technical grade STPP and its impact on industrial practices.
Understanding Technical Grade Sodium Tripolyphosphate (STPP):
Technical grade STPP is a sodium salt of triphosphoric acid, and its chemical formula is Na5P3O10. It is available in the form of a white crystalline powder, and its technical grade indicates a specific purity level suitable for industrial applications. The compound's ability to act as a builder, sequestrant, and dispersant makes it a valuable asset in various industrial processes.
Applications of Technical Grade STPP:
Detergent Industry:One of the primary applications of technical grade STPP is in the formulation of detergents. Its role as a builder and water softener is critical for enhancing the effectiveness of detergents. STPP helps in preventing the redeposition of dirt, improving soil removal, and ensuring optimal performance in laundry and dishwashing detergents.
Water Treatment:Technical grade STPP is widely used in water treatment processes for its sequestering properties. It helps in preventing scale formation by binding with calcium and magnesium ions, contributing to the efficient operation of water treatment plants and extending the lifespan of pipes and equipment.
Industrial Cleaning Products:The dispersing and emulsifying properties of technical grade STPP make it an essential component in industrial cleaning products. It aids in maintaining stable formulations and improving the cleaning efficiency of products such as degreasers and surface cleaners.
Textile Industry:In the textile industry, technical grade STPP is utilized as a leveling agent and dispersant in dyeing processes. It ensures uniform color distribution, prevents agglomeration of dyes, and enhances the overall quality of dyed textiles.
Ceramic Manufacturing:Technical grade STPP plays a crucial role in ceramic manufacturing by acting as a deflocculant. It improves the flow properties of ceramic slurries, enhances particle dispersion, and contributes to the production of high-quality, defect-free ceramic products.
Food Industry:While food-grade STPP is specifically formulated for direct food applications, technical grade STPP may find use in certain non-direct food applications. For example, it may be employed in cleaning and sanitation processes within food processing facilities.
Conclusion:
Technical grade Sodium Tripolyphosphate (STPP) emerges as a versatile and indispensable compound with a wide array of applications across diverse industries. Its role as a builder, sequestrant, dispersant, and water softener makes it a key ingredient in the formulation of various industrial products. As industries continue to evolve, the versatility and efficacy of technical grade STPP are likely to contribute to ongoing advancements and improvements in industrial processes, ultimately impacting the quality and efficiency of end products across multiple sectors.
📌 Detailed Introduction of Sodium Tripolyphosphate (STPP) Technical Grade
✔ What is Sodium Tripolyphosphate (STPP) Technical Grade?
Sodium Tripolyphosphate (STPP) is an inorganic polyphosphate widely used in industrial applications such as ceramic manufacturing, detergents, and water treatment. It is valued for its ability to:
✔ Disperse solid particles in ceramic slurries
✔ Prevent scale formation in industrial cleaning
✔ Enhance cleaning performance in detergents
✔ Improve water softening for industrial and household applications
📌 Applications of Sodium Tripolyphosphate (STPP) Technical Grade
✔ STPP in the Ceramic Industry
STPP is a key dispersant and deflocculant in ceramic tile and porcelain manufacturing. It helps:
Improve fluidity of ceramic slurries by reducing viscosity
Enhance particle dispersion, preventing clumping in clay suspensions
Optimize water usage, reducing the need for excess water in the mixing process
Increase production efficiency, leading to better molding and shaping of ceramics
Its ability to stabilize suspensions makes it an essential additive in tile, sanitary ware, and porcelain production.
✔ STPP in the Detergent Industry
As a powerful detergent builder, STPP plays a vital role in laundry and industrial cleaning:
Acts as a water softener, removing calcium and magnesium ions from hard water
Improves surfactant efficiency, enhancing detergency and stain removal
Prevents re-deposition of dirt on fabrics during washing
Boosts foaming stability in liquid and powder detergents
STPP is widely used in laundry detergents, dishwashing formulations, and industrial cleaners, ensuring effective soil removal and enhanced cleaning power.
✔ Other Industrial Applications
✔ Water Treatment – Used to prevent scale formation and corrosion in industrial boilers
✔ Oil Drilling – Enhances drilling mud stability
✔ Leather & Textile Industry – Helps in softening water and removing impurities
📌 Production Method & Raw Materials
✔ Raw Materials Used:
Phosphoric Acid (H₃PO₄)
Sodium Carbonate (Na₂CO₃)
✔ Production Process:
Reaction – Phosphoric acid reacts with sodium carbonate to form STPP
Crystallization & Filtration – Purification and separation of the final product
Drying & Granulation – Producing a free-flowing, easy-to-use powder
📌 Product Specifications
| Property | Specification |
|---|---|
| Chemical Formula | Na₅P₃O₁₀ |
| Appearance | White crystalline powder |
| Purity (min) | ≥ 94% |
| Water Solubility | Highly soluble in water |
| pH (1% solution at 25°C) | 9.5 - 10.5 |
| Bulk Density | 0.70 - 0.90 g/cm³ |
| Insoluble Matter (%) | ≤ 0.1 |
| Packaging | 25kg, 50kg bags or bulk |
| Shelf Life | 24 months |
📌 Famous STPP Brands Worldwide
Innophos – USA
ICL Phosphates – Israel
Jiangsu Khonor Chemicals Co., Limited – China
Prayon – Belgium
📌 Why Choose Jiangsu Khonor Chemicals Co., Limited?
✔ Premium-Quality STPP – Strictly complies with industrial-grade standards
✔ Reliable Supply – Large-scale production for consistent availability
✔ Competitive Pricing – Cost-effective bulk purchasing options
✔ Global Shipping – Fast and secure worldwide distribution
📌 Order Sodium Tripolyphosphate (STPP) Technical Grade Today!
Looking for a reliable STPP supplier for ceramics and detergents? Jiangsu Khonor Chemicals Co., Limited delivers high-quality, industrial-grade STPP for ceramic manufacturing, cleaning formulations, and water treatment applications.
📞 Contact us now for bulk orders, samples, and technical support!