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Sodium Trimetaphosphate

Chemical Formula: (NaPO3)3
​Molecular Weight: 305.92
​CAS No.​: 7785-84-4
​EINECS No.​: 232-088-3

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Introduction

Sodium Trimetaphosphate is an inorganic compound appearing as white crystalline powder, highly soluble in water with alkaline solution. As a versatile food additive, it serves multiple functions including water retention, preservation, and texture stabilization in various food processing applications.

Specifications

Parameter Specifications
Appearance White crystal or white crystalline powder
Assay (as P2O5) % 68.0~70.0
Identification Meet the requirements
Fluoride (as F) % max 0.005
Arsenic (as As) ppm max 3
Heavy metals (as Pb) ppm max 10
Insoluble substance % max 0.1

Features and Benefits

Key Functional Properties

  • Superior water retention: Enhances moisture content in food products
  • Effective preservation: Inhibits microbial growth by chelating metal ions
  • Texture stabilization: Maintains optimal food structure during processing
  • Alkaline solution: Provides pH adjustment capability
  • High solubility: Easily dissolves in water for uniform distribution
  • Food safety: Meets strict food-grade purity standards

Applications

Primary Functions in Food Processing

  • Meat products: Improves water binding capacity and texture
  • Bean products: Prevents structural collapse during processing
  • Beverages: Acts as preservative in beer and soft drinks
  • Canned foods: Extends shelf life and maintains quality
  • Processed foods: Enhances overall product stability

Mechanism of Action

  • Interacts with proteins and starches to improve water holding capacity
  • Forms complexes with metal ions to inhibit bacterial growth
  • Stabilizes food matrix to prevent texture degradation
Processing Tip: For optimal performance, dissolve in water before incorporating into food formulations. Typical usage levels range from 0.1% to 0.5% depending on application.

Packaging & Storage

Package: 25kg paper bags with inner PE liner

Shelf Life: 24 months when properly stored

Storage Conditions:

  • Store in dry, well-ventilated environment
  • Protect from direct sunlight and moisture
  • Reseal tightly after each use to prevent caking
  • Keep separate from toxic or hazardous substances