Sodium hexametaphosphate

Sodium hexametaphosphate (CAS 68915-31-1), abbreviated SHMP and listed as E452i in food applications, is a polyphosphate salt used in industrial and food-grade markets.

Where is Sodium hexametaphosphate used?

• Water treatment: scale and corrosion control in cooling towers, boilers and municipal distribution systems
• Food: moisture-retention and texture agent in processed meats, seafood, dairy and canned products
• Industrial cleaning and detergents: water softener that prevents redeposition of soils
• Textile and paper processing: disperses minerals in process water
• It binds calcium, magnesium and heavy metal ions as a sequestrant, dispersant and scale inhibitor.

Good to know: Purity levels and chain-length specifications vary by grade; buyers should confirm these against their process or regulatory requirements.

Commercial specifications

• Food-grade (FCC, E452i-compliant) and technical-grade
• Purity levels and chain-length specifications vary by grade