Sodium hexametaphosphate (SHMP) is a hexamer of composition (NaPO3)6. Sodium hexametaphosphate of commerce is typically a mixture of polymeric metaphosphates, of which the hexamer is one, and is usually the compound referred to by this name. It is more correctly termed sodium polymetaphosphate.
Sodium hexametaphosphate (Graham’s Salt) Letterbox Friendly Pouch
£2.95 – £5.75
- Used as a sequestrant and has applications within a wide variety of industries including as a food additive.
- Used as a deflocculant in the production of clay-based ceramic articles.
- Dispersing agent to break down clay and other soil types.
- Claimed as a anti-staining and tartar prevention ingredient.
Minimum Assay: >68%
Molecular Formula: (NaPO3)6 (Mainly)
Molecular Weight: 611.78
Solubility in Water (% weight): Soluble in water
Melting Point: 628 °C
Boiling Point: 1500°C
Solubility: Soluble in water
Chloride (Cl): <0.02%
Heavy Metals (as Pb): <0.005%
Iron (Fe): <0.01%
Hazard Phrases: Not considered harmful under normal laboratory conditions.
Cas No: 68915-31-1
Einecs No: 272-808-3
100gm, 250gm, 500gm