Agency

meets analytical specifications of BP
meets analytical specifications of Ph. Eur.

Quality Level

200

Assay

98.5-101% (calc. to the dried substance)

form

crystals

quality

meets analytical specification of Ph. Eur., BP

impurities

reducing matter, complies
residual solvents, complies
≤0.001% heavy metals (as Pb)
≤1% NaH₂PO₄ (calc. to dried subst.)

loss

19.5-21% loss on drying, 130 °C

pH

9.0-9.4 (20 °C, 1%)

anion traces

chloride (Cl^-): ≤50 mg/kg
sulfate (SO₄^2-): ≤100 mg/kg

cation traces

As: ≤2 mg/kg
Fe: ≤10 mg/kg

suitability

complies for appearance of solution

SMILES string

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

InChI

1S/2Na.H3O4P.2H2O/c;;1-5(2,3)4;;/h;;(H3,1,2,3,4);2*1H2/q2*+1;;;/p-2

InChI key

KDQPSPMLNJTZAL-UHFFFAOYSA-L