Sodium phosphate tribasic dodecahydrate

Product Name

Sodium phosphate tribasic dodecahydrate, puriss. p.a., ACS reagent, ≥98.0% (T)

InChI key

ASTWEMOBIXQPPV-UHFFFAOYSA-K

InChI

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

SMILES string

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

grade

ACS reagent
puriss. p.a.

assay

≥98.0% (T)

form

crystals or chunks

impurities

≤0.001% total nitrogen (N)
≤2.5% free alkali (as NaOH)

pH

13 (25 °C, 190.1 g/L)

density

1.62 g/mL at 25 °C

anion traces

chloride (Cl^-): ≤10 mg/kg
sulfate (SO₄^2-): ≤50 mg/kg

cation traces

As: ≤1 mg/kg
Ca: ≤10 mg/kg
Cd: ≤5 mg/kg
Co: ≤5 mg/kg
Cr: ≤5 mg/kg
Cu: ≤5 mg/kg
Fe: ≤5 mg/kg
K: ≤50 mg/kg
Mg: ≤5 mg/kg
Mn: ≤5 mg/kg
Ni: ≤5 mg/kg
Pb: ≤5 mg/kg
Zn: ≤5 mg/kg

Quality Level

200