China STPP Manufacturer Industrial/Food Grade Sodium Tripolyphosphate

• Customization: Available
• CAS No.: 7758-29-4
• EINECS: 231-838-7
• Model NO.: 7758-29-4
• Purity: ≥99%
• Type: Sodium Tripolyphosphate
• Grade Standard: Food Grade
• Service: Support OEM and ODM
• Usage: Laboratory Reagents, Analytical Reagents, Diagnost
• Application: Industry, Scientific Research, Health, Environment
• Specific Usage: for Tissue Medium Purpose, for Microbiological, Te
• Content: Standard
• Transport Package: Kraft Paper Bag or Plastic Bag
• Specification: 50kg/100kg/1000kg
• Trademark: Jinqi
• Origin: China
• HS Code: 2835311000
• Production Capacity: 1000mt/M

Product Description

Product Introduction

Sodium tripolyphosphate (STPP), is an inorganic salt composed of sodium cations and tripolyphosphate anions. It appears as white powder or granular solid. STPP is a kind of polyphosphate, formed by the condensation of multiple phosphate units, which endows it with unique chemical and physical properties.

Product Specification

Index	Standard
Purity(Na5P3O10) by wt %	94.0 min
P2O5 by wt %	56.5 min
Pyrophosphate (Na4P2O7) by wt %	4.0 max
Orthophosphate and Metaphosphate by wt %	2.0 max
Iron content (as Fe) by wt %	0.01 max
Water Insoluble by wt %	0.10 max
Bulk Density by g/ml	0.9~1.15
Phase I by wt %	15~40
Whiteness %	85 min
PH value (1% solution)	9.2~10.3
Particle Size (100mesh pass by wt %)	95 min

Packaging & Shipping

Product Application

• Detergent industry: It is a key ingredient in synthetic detergents. STPP can chelate metal ions in hard water, such as calcium and magnesium ions, to soften the water and improve the cleaning efficiency of detergents. It also has functions of dispersing dirt particles and preventing redeposition, making clothes cleaner.
• Food industry: As a food additive, it serves multiple purposes. It acts as a water - retaining agent in meat products, keeping the meat juicy and tender by binding water molecules. In canned foods and beverages, it can adjust the pH value, maintain product stability, and prevent metal - induced spoilage by chelating metal ions.
• Industrial water treatment: Used as a scale inhibitor and dispersant in industrial circulating water systems. By complexing with calcium and magnesium ions, it prevents the formation of scale on the surface of pipes and equipment, and keeps suspended particles dispersed, reducing the risk of blockage and corrosion.
• Paper and pulp industry: In papermaking, it can be used to adjust the pH of sizing agents, and disperse fillers and pigments, helping to improve the smoothness and quality of paper.
• Ceramics industry: Added to ceramic raw materials and glazes to reduce the viscosity of the mixture, improve the fluidity and plasticity of ceramic slurries, which is beneficial for the molding of ceramic blanks and the uniform coating of glazes.