Sodium triphosphate pentabasic

Product Name

Sodium triphosphate pentabasic, purum p.a., ≥98.0% (T)

InChI

1S/5Na.H5O10P3/c;;;;;1-11(2,3)9-13(7,8)10-12(4,5)6/h;;;;;(H,7,8)(H2,1,2,3)(H2,4,5,6)/q5*+1;/p-5

InChI key

HWGNBUXHKFFFIH-UHFFFAOYSA-I

SMILES string

[Na+].[Na+].[Na+].[Na+].[Na+].[O-]P([O-])(=O)OP([O-])(=O)OP([O-])([O-])=O

grade

purum p.a.

assay

≥98.0% (T)

form

powder

concentration

57-59% (calc. based on P₂O₅)

pH

9.0-10.0 (25 °C, 1% in H₂O)

solubility

water: soluble 148 g/L at 20 °C

anion traces

chloride (Cl^-): ≤1000 mg/kg
sulfate (SO₄^2-): ≤500 mg/kg

cation traces

Ca: ≤200 mg/kg
Cd: ≤50 mg/kg
Co: ≤50 mg/kg
Cu: ≤50 mg/kg
Fe: ≤50 mg/kg
Ni: ≤50 mg/kg
Pb: ≤50 mg/kg
Zn: ≤50 mg/kg

Quality Level

200