Sodium Hexametaphosphate

Sodium Hexametaphosphate (SHMP) is a polyphosphate salt used as a sequestrant and dispersing agent. It is particularly effective at chelating metal ions, especially calcium and magnesium. SHMP is widely used in water treatment as a softener, in ceramics as a dispersant, and in food as a moisture binder. It is also known as Calgon and has applications in numerous industries.

CAS:

10124-56-8

Formula:

(NaPO3)6

Molar Weight

611.77 g/mol

Melting Point

Decomposes above 625°C

Boiling Point

Not applicable (decomposes)

Density

2.48 g/cm³

Forms

White powder or granules, Glassy form available

Odor

Odorless

Key applications

Water softening and treatment agent
Dispersant in ceramic production
Sequestrant for metal ions
Moisture binder in foods
Deflocculant in clay processing

Industries

Water Treatment
Ceramics and Pottery
Food Industry
Detergent Manufacturing
Paper Industry
Textile Industry
Oil and Gas Drilling

SHMP, Calgon, Graham’s salt, Sodium polymetaphosphate, Sodium metaphosphate, E452(i)

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