Sigma-Aldrich Sodium phosphate tribasic dodecahydrate

Quality Level

200

assay

≥98%

form

crystalline

impurities

≤0.001% heavy metals (as Pb)
≤2.5% free alkali (as NaOH)

solubility

boiling water: soluble 1 part
water: soluble 3.5 parts
alcohol: insoluble

density

1.62 g/mL at 25 °C

anion traces

chloride (Cl^-): ≤0.01%
sulfate (SO₄^2-): ≤0.01%

cation traces

As: ≤1 mg/kg
Fe: ≤10 mg/kg

SMILES string

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

InChI

1S/3Na.H3O4P.12H2O/c;;;1-5(2,3)4;;;;;;;;;;;;/H;;;(H3,1,2,3,4);12*1H2/q3*+1;;;;;;;;;;;;;/p-3