Sodium Hexametaphosphate is also called as Calgon. The formula for Sodium Hexametaphosphate is (NaPO3)6. It is a gathering of sodium polyphosphate polymers based on repeating NaPO3 units. It is a water dissolvable polyphosphate glass that comprises of circulation of polyphosphate chain lengths. Sodium hexametaphosphate is a complex phosphate glass produced by a thermal process from soda ash and food-grade phosphoric acid.

Chemical formula : (NaPO₃)₆

Appearance : White crystals

Density : 2.48 g/cm³

Molecular weight/ Molar mass : 611.77 g/mol

Boiling point : 1500 °C

Melting point : 628 °C

Odour : Odourless

SolubilitySoluble in water, insoluble in organic solvents.

Uses of Sodium Hexametaphosphate

Used as a surfactant, emulsifier, suspending agent, dispersing agent and as buffer.

Industrial uses include clay processing, drilling fluids and cleaning products which stick together and form clumps.

Used in water treatment, when added to a municipal or industrial water systems it helps to reduce scale formation, corrosion, and biofilm formation in pipes and other equipment.