High-Quality Sodium Tripolyphosphate STPP for Food Industry Applications

• Customization: Available
• CAS No.: 7758-29-4
• Formula: Na5o10p3
• Model NO.: Sodium Tripolyphosphate
• EINECS: 231-838-7
• Certification: ISO
• Purity: 80%~90%
• Type: Sodium Tripolyphosphate
• Grade Standard: Food Grade
• Appearance: White Granular
• Assay: >/=95
• P2o5: >/=57.0
• Fluoride (Ppm): </=10
• Lead (Ppm): </=4
• Heavy Metal (as Pb) (Ppm): </=10
• Chlorides (as Cl): </=0.025%
• Sulphates (So42-): </=0.4%
• Substances Not Dissolved in Water: </=0.05%
• pH: 9.5%-10.0%
• Loss on Drying: </=0.7%
• Hexahydrate: </=23.5%
• Water-Insoluble Substances: </=0.1%
• Higher Polyphosphates: </=1%
• Transport Package: Bag
• Specification: 25kg/Bag
• Trademark: HNTY
• Origin: China
• HS Code: 28353110

Product Description

Product Description

Sodium Tripolyphosphate (STPP) is an inorganic compound. It is a white crystalline powder or granular material, highly soluble in water, and widely used as a versatile industrial and food-grade additive. STPP is valued for its chelating, emulsifying, and pH-buffering properties, making it a critical ingredient in detergents, food processing, and water treatment. It complies with global standards such as FCC (Food Chemicals Codex) and ISO certifications.

Key Features

Chelating Agent: Binds metal ions (e.g., calcium, magnesium) to prevent scaling and improve cleaning efficiency.
Water Softening: Enhances detergent performance by softening hard water. Emulsion Stabilizer: Maintains texture and moisture in food products.
pH Regulation: Acts as a buffering agent in industrial processes.
Cost-Effective: Improves product performance at low concentrations.

Product Parameters

ITEM	STANDARD
Appearance	White granular
Assay (Na5P3O10)	≥95
P2O5	≥57.0
Fluoride (PPM)	≤10
Lead (PPM)	≤4
Heavy metal (As Pb) (PPM)	≤10
Chlorides (As CL)	≤0.025%
Sulphates (SO42-)	≤0.4%
Substances not dissolved in water	≤0.05%
PH	9.5%-10.0%
Loss on drying	≤0.7%
Hexahydrate	≤23.5%
Water-insoluble substances	≤0.1%
Higher polyphosphates	≤1%

Product Application

Detergents & Cleaning Products

Laundry Detergents: Softens water, boosts surfactant effectiveness, and prevents redeposition of dirt.
Dishwashing Powders: Improves grease removal and prevents spotting on dishes.
Industrial Cleaners: Used in degreasers and metal surface treatments.

Food Industry Meat & Seafood

Processing: Retains moisture in cured meats, poultry, and fish to improve texture and shelf life.
Canned Foods: Stabilizes color and texture during thermal processing.
Dairy Products: Prevents protein coagulation in processed cheeses.

Water Treatment

Corrosion Inhibition: Protects pipelines and boilers by sequestering metal ions.
Drinking Water: Controls scale formation in municipal water systems.

Other Industrial Uses

Ceramics & Textiles: Acts as a dispersant in clay slip preparations and dyeing processes.
Oil Drilling: Reduces viscosity in drilling muds.