CAS · 68915-31-1
Product Overview
Sodium hexametaphosphate is a high-purity water-treatments supplied for industrial and specialty chemical applications. Contact our team for specifications, packaging options and lead times.
Product Specifications
| Appearance: | White powder, granules or flakes |
|---|---|
| Total Phosphate Content (as P2O5): | 68.0% min |
| Inactive Phosphate Content (as P2O5): | 7.5% max |
| Water insoluble Content: | 0.04% max |
| Iron Content: | 0.03% max |
| pH (in 100g/L Solution): | 5.8~7.0 |
| Solubility: | Conforms |
Applications
1. Water Treatment
Dispersing agent to prevent scale formation in boilers, cooling towers, and water pipelines.
Sequesters metal ions like calcium, magnesium, and iron, making it an effective softening agent.
2. Food Industry (Food Grade SHMP)
Approved as a food additive (E452i) in many countries.
Used in:
Processed meats: Improves texture, water retention, and shelf life.
Seafood: Maintains moisture and inhibits rancidity.
Dairy products: Stabilizes casein in cheese and evaporated milk.
Beverages: Controls pH and stabilizes flavor compounds.
3. Detergents and Cleaners
Acts as a builder in detergent formulations to enhance cleaning performance.
Softens hard water to allow surfactants to function more efficiently.
Used in automatic dishwashing detergents, industrial cleaners, and personal care products.
4. Ceramics and Paints
Dispersant in clay processing and ceramic glazes.
Improves slurry fluidity and particle distribution.
Stabilizes pigments in water-based paints and coatings.
5. Oil Drilling and Mining
Used in drilling fluids to disperse solids and prevent scale.
Aids in ore flotation processes and mineral separation.
6. Textile and Leather Processing
Improves dye penetration and distribution.
Softens water used in processing and enhances performance of auxiliaries.
7. Toothpaste and Oral Care
Helps prevent tartar formation.
Chelates calcium ions to reduce plaque and mineral buildup.
Benefits
1. Strong Chelating Ability
Binds and inactivates metal ions (Ca²⁺, Mg²⁺, Fe³⁺), improving effectiveness of other additives and reducing precipitation.
2. Excellent Water Softening
Essential in applications where hard water affects performance (e.g., detergents, food processing, water treatment).
3. Versatile Functional Additive
Provides multiple effects: dispersing, emulsifying, stabilizing, and sequestering, making it indispensable across many industries.
4. Improves Product Quality
In food and ceramics, SHMP enhances texture, color uniformity, and processing efficiency.
5. Cost-Effective and Safe
Low toxicity and used at minimal effective dosages.
Recognized as GRAS (Generally Recognized As Safe) for approved food uses under specific conditions.
Conclusion
Sodium Hexametaphosphate (CAS 68915-31-1) is a multifunctional inorganic phosphate used across water treatment, food processing, ceramics, detergents, and personal care. Its strong chelating ability, water softening capacity, and dispersing properties make it an essential ingredient for both industrial and consumer applications.
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