Sodium hexametaphosphate
Sodium hexametaphosphate (CAS: 68915-31-1) is an inorganic salt with the formula (NaPO3)n. This versatile polyphosphate is a key component in various industrial processes. It functions effectively as a sequestrant, deflocculant, and dispersant, finding widespread use in water treatment, detergent formulations, and as a crucial additive in materials science and ceramic applications. Its ability to bind metal ions makes it invaluable for controlling water hardness and improving product stability.
- IUPAC
- Calgon,Phosphate glass, water soluble,Polyphosphate sodium salt,Sodium polyphosphate
- Synonyms
- CalgonPhosphate glassPolyphosphate sodium saltSodium polyphosphate
Water Treatment
Utilised as a scale inhibitor and sequestrant in industrial and municipal water systems. It prevents the precipitation of mineral scales, ensuring efficient water flow and protecting equipment from corrosion and fouling.
Detergent Formulations
Acts as a builder and dispersant in powdered detergents and cleaners. It softens water by chelating calcium and magnesium ions, enhancing the cleaning efficacy of surfactants and preventing soil redeposition.
Materials Science
Employed as a deflocculant and dispersant in the processing of ceramics, clays, and pigments. It reduces viscosity in suspensions, allowing for easier handling and improved homogeneity in manufactured materials.
Food Industry (as a sequestrant)
Functions as a sequestrant and emulsifier in certain food applications, although its grade for such uses must be verified. It helps to stabilise emulsions and prevent the unwanted reactions of metal ions.
| Grade | practical grade |
|---|---|
| Composition | P2O5, ≥66.5% |
| Protective equipment | Eyeshields, Gloves, type N95 (US), type P1 (EN143) respirator filter |
|---|---|
| Water hazard class (WGK, DE) | 1 |
Hazard information is provided for guidance. Always consult the product Safety Data Sheet (SDS), available on request, before handling.
Documentation
Every batch ships with a Certificate of Analysis covering assay, identity and purity; the grade is confirmed against your enquiry. Safety Data Sheets and technical data sheets are available on request.
Supply & logistics
Samples for technical evaluation; bulk MOQ by grade and packaging. In-stock material ships in 7–10 working days, worldwide, with full export documentation.
What is Sodium Hexametaphosphate used for?
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Sodium hexametaphosphate (CAS: 68915-31-1) is primarily used in water treatment as a sequestrant and scale inhibitor, in detergents as a builder and dispersant, and in materials science as a deflocculant for ceramics and pigments.
What are the CAS number and formula for Sodium Hexametaphosphate?
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The CAS number for Sodium Hexametaphosphate is 68915-31-1. Its formula is (NaPO3)n, representing a polymeric chain of sodium metaphosphate units.
What grade and purity does Tech Serve Solutions supply?
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Tech Serve Solutions supplies Sodium Hexametaphosphate in a practical grade, with a P2O5 content of ≥66.5%. We do not represent this product as USP, BP, EP, or any other pharmacopoeia grade unless explicitly stated.
How should Sodium Hexametaphosphate be handled safely?
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Handle Sodium Hexametaphosphate with appropriate personal protective equipment, including eyeshields and gloves. Ensure adequate ventilation. Refer to the safety data sheet for comprehensive handling and hazard information. It is classified under WGK Germany 1.
Is Sodium Hexametaphosphate a controlled substance?
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Based on the provided data, Sodium Hexametaphosphate (CAS: 68915-31-1) is not indicated as a controlled substance.
How is Sodium Hexametaphosphate packed and shipped?
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Tech Serve Solutions exports Sodium Hexametaphosphate globally, adhering to all relevant shipping regulations for chemical substances. Specific packing details can be provided upon request.
How can I request a sample or quote for Sodium Hexametaphosphate?
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To request a sample or a quotation for Sodium Hexametaphosphate, please contact our sales department through our website or by phone, providing your specific requirements and delivery details.
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