Purity 96% STPP Phosphate Sodium Tri Poly Phosphate For Water Treatment

Molecular formula: Na5P3O10

Molecular weight: 367.86

Industrial grade: CAS 7758-29-4

Standard: GB/T 9983-2004

Chemical Formula: Na₅P₃O₁₀

Molecular Weight: 367.86 g/mol

Appearance: White crystalline or powdery solid

Form: Typically exists as an anhydrous compound (Na₅P₃O₁₀) or a hexahydrate (Na₅P₃O₁₀*6H₂O)

Water Solubility: Highly soluble in water (14 g/100 mL at 20°C, 30 g/100 mL at 60°C)

Other Solvent: Insoluble in organic solvents (e.g., ethanol)

Aqueous Solution pH: 9.5-10.5 (1% solution)

Decomposition Temperature: 622°C (into sodium pyrophosphate and sodium metaphosphate)

Hydrate Stability: Hexahydrate tends to effloresce in dry air

Hygroscopicity: Strong; easily absorbs moisture from the air

Chelating Ability: Forms stable soluble complexes with metal ions (calcium, magnesium, iron)

• Softens water quality and enhances detergent decontamination ability
• Chelates calcium and magnesium ions to prevent scale formation
• Disperses dirt and prevents reattachment to surfaces
• Maintains alkaline environment for improved cleaning

• Food additive (E451) for quality improvement
• Water retaining agent for meat and seafood products
• Texture improver for dairy products and processed meats
• Preservative to extend shelf life

• Prevents scale formation in boiler and cooling water systems
• Improves heat exchange efficiency
• Reduces corrosion in pipes and equipment

• Dispersant for ceramic paste preparation
• Improves slurry flow and uniformity
• Enhances strength and surface finish of products

• Printing and dyeing process auxiliary agent
• Improves dye dispersion and uniformity
• Enhances dyeing effect and color fastness

• Drilling fluids and oilfield chemicals
• Adjusts drilling fluid viscosity
• Prevents scaling and reduces corrosion

• Metal treatment: cleaning and rust prevention
• Paper industry: filler and coating dispersant
• Coatings industry: improves stability and fluidity

• Potential for water eutrophication
• Being replaced by non-phosphorus alternatives (zeolite, polycarboxylate) in some applications

• High quality raw materials: Strict selection meeting environmental standards
• Advanced production technology: International equipment with automated processes
• Diverse product lines: Wide range of industrial chemicals with customization options
• Strict quality control: ISO9001 certified with continuous improvement
• Environmental protection: Focus on eco-friendly products meeting safety standards
• Market recognition: Strong brand reputation with customer-focused service
• R&D innovation: Dedicated team developing competitive new products