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Sodium Hexametaphosphate(Sodium Polyphosphates, Glassy; Sodium Tetrapolyphosphate; Graham’s Salt)

Chemical formula: (NaPO3)6

CAS No.:10124-56-8

Molecular weight: 611.82Standard executed: HG/T2837-1997Properties: White powder, relative density is 2.484 (20), easily soluble in water, but not in organic solution, absorbent to dampness, and turn sticky when absorbed dampness in air. It is possible to form solvent compound with metallic ions such as Ca, Ba, Mg, Cu and Fe; It is a fine agent for water treatment.

1. Specification

Sodium Hexametaphosphate

68%min tech grade

Appearance:White power

Specification: Total phosphate as P2O5: 68% min

Inactive phosphate as P2O5: 7.5% max

Iron: 0.05% max

PH value(1% solution): 5.8-7.3

Water insoluble: 0.05% max

2. Specification

Re: Sodium Hexametaphosphate 68%min food grade

Appearance: White powder

Specification: Total phosphate as P2O5: 68% min

Inactive phosphate as P2O5: 7.5% max

Iron: 0.05% max

PH value(1% solution): 5.8-6.5

Water insoluble: 0.06% max

Heavy metals as Pb: 0.001% max

As: 0.0003% max

F: 0.003% max