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1.06529

Supelco

Sodium polyphosphate

(Graham′s salt) EMPLURA®

Synonym(s):
Sodium polyphosphate, Graham′s salt, Sodium metaphosphate
Linear Formula:
(NaPO3)n
CAS Number:
MDL number:
EC Index Number:
233-782-9

Quality Level

product line

Emplura®

form

solid

potency

>2000 mg/kg LD50, oral (Rat)

concentration

≥68% ( P2O5, acidimetric)

pH

5.7 (20 °C, 10 g/L in H2O)

mp

550 °C

solubility

1000 g/L

density

2.5 g/cm3 at 20 °C

bulk density

1000 kg/m3

anion traces

chloride (Cl-): ≤0.02%

cation traces

Fe: ≤0.01%
heavy metals (as Pb): ≤0.005%

storage temp.

2-30°C

InChI

1S/Na.HO3P/c;1-4(2)3/h;(H,1,2,3)/q+1;/p-1

InChI key

AQMNWCRSESPIJM-UHFFFAOYSA-M

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Sodium polyphosphate (Graham′s salt) EMPLURA®

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Sodium polyphosphate

Sodium hexametaphosphate Emplura®

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Sodium hexametaphosphate

Sodium Hexametaphosphate

Supelco

SX0583

Sodium Hexametaphosphate

assay

≥68% P2O5 basis (acidimetric)

assay

85%

assay

-

assay

≥65% P2O5 basis

form

solid

form

powder

form

-

form

granular

pH

5.7 (20 °C, 10 g/L in H2O)

pH

9.5-10.3 (1 g/L)

pH

-

pH

-

mp

550 °C

mp

-

mp

-

mp

-

solubility

1000 g/L

solubility

-

solubility

-

solubility

-

density

2.5 g/cm3 at 20 °C

density

-

density

-

density

-

Analysis Note

Assay (acidimetric, P₂O₅): ≥ 68 %
Identity: passes test
Chloride (Cl): ≤ 0.02 %
Heavy metals (as Pb): ≤ 0.005 %
Fe (Iron): ≤ 0.01 %

Legal Information

EMPLURA is a registered trademark of Merck KGaA, Darmstadt, Germany

Storage Class Code

11 - Combustible Solids

WGK

WGK 1

Flash Point(F)

Not applicable

Flash Point(C)

Not applicable

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