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ELRASATM - STPPd

Sodium Tripolyphosphate
CAS NUMBER - 7758-29-4
Technical Data Sheet
Technical Data Sheet
Basic Information
Product Specification
About Product
Sodium Tripolyphosphate (STPP) is a white, granular or powdery inorganic compound widely used across detergents, water treatment, ceramics, food processing, and industrial applications. Known for its excellent sequestration, dispersion, buffering, and emulsifying properties, STPP plays a crucial role in enhancing cleaning efficiency, preventing scale formation, and improving product stability. Due to its versatility and performance benefits, industries depend heavily on reliable sodium tripolyphosphate manufacturers to ensure consistent quality and purity in large-scale formulations.

Product Specification

SYNONYMS

STPP, Pentasodium triphosphate, Triphosphoric acid, pentasodium salt

MOLECULAR WEIGHT

367.86 g/mol

CAS NUMBER

7758-29-4

CHEMICAL FORMULA

Na5P3O10

HS CODE

28353100

DENSITY

2.52 g/cm³

MELTING POINT

622 °C

BOILING POINT

Decomposes before boiling

VISCOSITY

Not applicable

SHELF LIFE

-

TYPICAL PROPERTIES

White crystalline powder, soluble in water, hygroscopic

APPEARANCE

White crystalline powder

Packaging Type

bag

Na5P3O10

bags

Chemical Name

Sodium Tripolyphosphate

Industry

Chemical Intermediates
Personal Care
Flavours and Fragrance
Oil and Gas

Application of Sodium Tripolyphosphate

Detergents & Cleaning Agents: Used as a primary detergent builder to soften water, enhance surfactant efficiency, and improve stain removal.

Water Treatment: Prevents scale formation by binding calcium and magnesium ions in water systems.

Ceramics & Construction: Improves slurry flow, acts as a dispersant, and enhances ceramic body strength.

Food Processing (Food Grade STPP): Functions as a preservative, moisture retainer, and emulsifying agent in seafood, meat, poultry, and frozen foods.

Industrial Applications: Used in textile processing, metallurgy, oil drilling, and leather treatments.

About Product

Sodium Tripolyphosphate (STPP) is one of the most essential inorganic phosphates used across multiple industries due to its outstanding chemical versatility. With its formula Na₅P₃O₁₀, STPP acts as a powerful chelating agent, effectively binding hard-water ions to improve cleaning performance in detergents.


Its ability to disperse particles, emulsify oils, and control pH levels makes it a critical ingredient in industrial formulations. In the food industry, food-grade STPP enhances texture, retains moisture, and improves quality consistency in frozen and processed foods.


High-performance STPP is essential for manufacturers who depend on accurate chemical composition and stability for their processes. This is why sourcing from trusted sodium tripolyphosphate manufacturers ensures product efficiency and regulatory compliance.


From home care detergents to ceramic tiles and water treatment facilities, STPP remains an irreplaceable material due to its reliability, performance, and broad application range.


Features of Sodium Tripolyphosphate

Excellent Water Softening Ability: Binds calcium and magnesium to improve detergent performance.

Strong Dispersing Action: Prevents particle settling and improves mixture stability.

pH Buffering Capacity: Maintains ideal pH levels in industrial and household formulations.

Moisture Retention (Food Grade): Improves texture and juiciness in meat and seafood products.

High Compatibility: Works well with surfactants, emulsifiers, and industrial chemicals

Features of Sodium Tripolyphosphate

  • Effective Water Softener: Sequesters calcium and magnesium ions, enhancing cleaning efficiency in detergents.
  • Versatile Food Additive: Improves texture and moisture retention in processed foods, ensuring quality.
  • Key Water Treatment Agent: Prevents scale and corrosion, maintaining system efficiency.
  • Enhances Ceramic Quality: Improves plasticity and glaze quality in ceramics.
  • Eco-Friendly Production: Focus on sustainable manufacturing practices to minimize environmental impact.

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