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Sodium Tripolyphosphate (STPP) is a white, crystalline inorganic compound used widely as a builder, dispersant, and sequestrant in cleaning agents, water treatment, and food processing.
Sodium Tripolyphosphate (STPP) enhances the cleaning efficiency of detergents by softening water, preventing redeposition of soils, and stabilizing pH.
Sodium Tripolyphosphate (STPP) is also valued in food applications for improving texture, moisture retention, and shelf life.
CAS Number: 7758-29-4
EC Number: 231-838-7
Molecular Formula: Na₅P₃O₁₀
Molecular Weight: 367.86 g/mol
Synonyms: Sodium tripolyphosphate, STPP, Pentasodium triphosphate, Tripolyphosphate sodium salt, Sodium triphosphate, E451(i) (food additive), STPP detergent grade, STPP food grade, Tripolyphosphate builder, Sodium polyphosphate, Sodium tripolyphosphate pentabasic, Sodium triphosphate pentasodium salt, STPP sequestrant, STPP dispersant, STPP water softener, Sodium tripolyphosphate granules, STPP crystalline powder, STPP technical grade
APPLICATIONS
Sodium Tripolyphosphate (STPP) is used in detergent formulations as a builder to enhance cleaning power by binding calcium and magnesium ions.
Sodium Tripolyphosphate (STPP) is applied in water treatment systems to prevent scaling and corrosion.
STPP is used in ceramic and clay processing to deflocculate and disperse particles.
In the food industry, it functions as a preservative, pH regulator, and moisture-retention agent in seafood, meats, and poultry.
Sodium Tripolyphosphate (STPP) improves texture and stabilizes emulsions in processed foods.
Sodium Tripolyphosphate (STPP) is also employed in toothpaste, leather tanning, and textile dyeing for its buffering and binding capabilities.
Sodium Tripolyphosphate (STPP) is included in industrial degreasers and metal surface treatment for its excellent chelating properties.
Sodium Tripolyphosphate (STPP) is widely used in the detergent industry, where it acts as a builder in laundry and dishwashing powders, enhancing their cleaning efficiency by softening water and improving surfactant activity.
Sodium Tripolyphosphate (STPP) is employed in the food industry as a food additive, where it serves as a preservative, stabilizer, and texturizer, particularly in processed meats and seafood.
Sodium Tripolyphosphate (STPP) is used in the production of ceramics and glazes, where it helps in controlling viscosity and acts as a dispersing agent to improve the quality and finish of the materials.
Sodium Tripolyphosphate (STPP) is applied in the water treatment industry, where it is used as a sequestering agent to control scale formation and prevent corrosion in industrial water systems.
Sodium Tripolyphosphate (STPP) is used in the textile industry, where it acts as a detergent and a dispersant, helping to remove dirt and impurities from fabrics and improving their quality during processing.
Sodium Tripolyphosphate (STPP) is employed in the production of powdered food products, such as instant soups and sauces, where it helps improve texture and preserve product quality.
Sodium Tripolyphosphate (STPP) is used in animal feed, where it helps in the formulation of high-quality animal nutrition products by ensuring efficient nutrient retention and preventing mineral buildup.
Sodium Tripolyphosphate (STPP) is used in the manufacture of synthetic detergents, where it works as a water softener, allowing the detergent to perform more effectively in hard water conditions.
Sodium Tripolyphosphate (STPP) is applied in the mining industry, where it is used as a dispersant in mineral processing to enhance the separation of valuable minerals from ore.
Sodium Tripolyphosphate (STPP) is used in the paper industry, where it acts as a dispersant and a stabilizer to improve the quality of paper products and help remove residual ink from recycled paper.
Sodium Tripolyphosphate (STPP) is employed in the formulation of concrete and cement products, where it helps enhance the workability and stability of the mixture by preventing clumping of materials.
Sodium Tripolyphosphate (STPP) is used in the cleaning of metal surfaces, where it helps to remove dirt, rust, and oil residues, improving the effectiveness of cleaning agents in industrial settings.
Sodium Tripolyphosphate (STPP) is used in the production of cosmetics and personal care products, where it helps stabilize emulsions and improve product texture and performance.
Sodium Tripolyphosphate (STPP) is employed in the production of household cleaners, where it is included in formulations as a builder to enhance cleaning power and prevent water hardness interference.
Sodium Tripolyphosphate (STPP) is applied in the oil and gas industry, where it is used as a dispersant and stabilizer in drilling fluids, ensuring better flow and efficiency during drilling operations.
Sodium Tripolyphosphate (STPP) is used in the agriculture industry, where it serves as a component in fertilizers, providing plants with important nutrients such as phosphorus.
Sodium Tripolyphosphate (STPP) is employed in the preparation of photographic chemicals, where it helps in the formulation of developer solutions, improving image quality and film processing.
Sodium Tripolyphosphate (STPP) is used in the production of polyphosphoric acid, which is an important precursor in the synthesis of phosphoric acid-based chemicals.
Sodium Tripolyphosphate (STPP) is applied in the production of cleaning agents for industrial kitchens, where it helps remove grease and stains while maintaining the integrity of utensils and cooking equipment.
Sodium Tripolyphosphate (STPP) is used in the formulation of deicing agents, where it helps prevent ice formation and improve the effectiveness of melting compounds in cold climates.
Sodium Tripolyphosphate (STPP) is employed in the production of fertilizers for horticulture, where it acts as a phosphorus source, promoting plant growth and root development.
Sodium Tripolyphosphate (STPP) is used in the paint industry as a dispersant and stabilizer, ensuring the even distribution of pigments in paint formulations and improving the durability of the paint.
Sodium Tripolyphosphate (STPP) is used in the production of detergents for industrial cleaning, such as in the food and beverage industry, where it helps maintain hygiene by effectively removing grease and residues from equipment.
Sodium Tripolyphosphate (STPP) is applied in the textile processing industry to improve dye uptake, where it helps ensure uniform coloring and prevents dye precipitation.
Sodium Tripolyphosphate (STPP) is used in the preparation of personal care products such as shampoos and conditioners, where it helps to balance pH levels and improve the stability of the formulation.
Sodium Tripolyphosphate (STPP) is employed in the agriculture industry as a soil conditioner, helping to improve water retention and nutrient availability in the soil.
Sodium Tripolyphosphate (STPP) is used in the formulation of dishwashing detergents, where it helps soften water and enhance cleaning power, preventing residue buildup on dishes and glassware.
Sodium Tripolyphosphate (STPP) is applied in the production of industrial detergents for metal cleaning, where it helps remove rust, grease, and dirt from metal surfaces, ensuring a clean and polished finish.
Sodium Tripolyphosphate (STPP) is used in the manufacture of laundry detergents, where it improves the detergent's ability to work effectively in hard water conditions by softening the water.
Sodium Tripolyphosphate (STPP) is used in the cleaning of concrete surfaces, where it helps to break down stubborn stains and residues while preserving the surface's integrity.
Sodium Tripolyphosphate (STPP) is a chemical compound with the formula Na₅P₃O₁₀, commonly used as a builder in detergents and as a dispersing agent in a wide range of industrial and consumer products.
Sodium Tripolyphosphate (STPP) is a white, odorless powder that is highly soluble in water, making it an effective ingredient in many aqueous formulations such as detergents, cleaning agents, and industrial processes.
DESCRIPTION
Sodium Tripolyphosphate (STPP) appears as a white, granular or crystalline powder that is highly soluble in water.
Sodium Tripolyphosphate (STPP) is a pentasodium salt of triphosphoric acid and exhibits strong chelating behavior.
Sodium Tripolyphosphate (STPP) acts as a buffering and emulsifying agent in various formulations.
Sodium Tripolyphosphate (STPP) performs efficiently under a broad pH range and is stable in dry conditions.
Sodium Tripolyphosphate (STPP) does not degrade easily and maintains effectiveness even in hard water environments.
Food-grade STPP complies with regulatory standards for safety and quality.
Sodium Tripolyphosphate (STPP) works by softening water and enhancing the effectiveness of surfactants in detergents, allowing for better cleaning results and reducing the amount of detergent required.
Sodium Tripolyphosphate (STPP) is a powerful sequestering agent, meaning it can bind with metal ions in water, preventing them from interfering with cleaning or other chemical reactions.
Sodium Tripolyphosphate (STPP) is commonly used as a dispersing agent in industrial processes such as ceramics and textile processing, where it helps to evenly distribute solids within a liquid medium.
Sodium Tripolyphosphate (STPP) is often used in the food industry as a food additive (E451) to maintain the texture of processed foods, particularly seafood and meat products, by preventing the loss of water and improving product consistency.
Sodium Tripolyphosphate (STPP) is known for its ability to prevent scale formation and corrosion in water treatment systems, making it an important ingredient in industrial water conditioning applications.
Sodium Tripolyphosphate (STPP) is used in agriculture as a source of phosphorus in fertilizers, promoting healthy plant growth by enhancing nutrient uptake and improving soil conditions.
Sodium Tripolyphosphate (STPP) is employed in the production of high-performance cleaning products for use in industrial kitchens, hospitals, and commercial facilities, where it aids in the removal of grease and organic residues.
Sodium Tripolyphosphate (STPP) is a key ingredient in many formulations for household cleaning products, where it helps enhance the cleaning power of detergents and maintain cleanliness in dishwashing and laundry applications.
PROPERTIES
Chemical Formula: Na₅P₃O₁₀
Molecular Weight: 367.86 g/mol
Common Name: Sodium Tripolyphosphate (STPP)
Appearance: White crystalline powder or granules
Odor: Odorless
Solubility: Highly soluble in water; insoluble in alcohol
pH (1% solution): 9.2–10.0
Bulk Density: 0.7–1.0 g/cm³
Melting Point: Decomposes above 622°C
Chelating Capacity: Excellent for Ca²⁺ and Mg²⁺
Stability: Stable under dry, cool storage
Storage Temperature: 10–30°C
Shelf Life: 24–36 months in sealed containers
FIRST AID
Inhalation:
Move to fresh air.
Seek medical attention if respiratory symptoms persist.
Skin Contact:
Wash thoroughly with soap and water.
Seek medical advice if irritation occurs.
Eye Contact:
Flush eyes with water for at least 15 minutes.
Seek immediate medical attention if irritation continues.
Ingestion:
Rinse mouth.
Do not induce vomiting.
Seek medical help if large amounts are swallowed.
Note to Physicians:
Treat symptomatically.
May cause mild irritation to gastrointestinal tract.
HANDLING AND STORAGE
Handling:
Use personal protective equipment including gloves and goggles.
Avoid inhalation of dust and contact with skin or eyes.
Ensure good ventilation during use.
Spill and Leak Procedures:
Sweep or vacuum up material.
Avoid dust formation.
Dispose of according to local environmental regulations.
Storage:
Store in a tightly sealed container in a cool, dry place.
Protect from moisture and incompatible substances such as strong acids.
Use appropriate labeling and first-in-first-out (FIFO) stock rotation.
Handling Cautions:
Avoid moisture contamination to maintain flowability and effectiveness.
Minimize dust generation and accumulation.
