磷酸三钠十二水合物

SMILES string

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

InChI key

ASTWEMOBIXQPPV-UHFFFAOYSA-K

product line

EMSURE^®

assay

98.0-102.0% (alkalimetric)

form

crystals

potency

7400 mg/kg LD₅₀, oral (Rat)

impurities

≤0.001% Total nitrogen (N), ≤0.01% Insoluble matter, ≤2.5% Free alkali (as NaOH)

pH

12 (20 °C, 10 g/L in H₂O)

mp

75 °C (Elimination of water of crystallisation)

solubility

285 g/L

density

1.62 g/cm³ at 20 °C

bulk density

950 kg/m³

anion traces

chloride (Cl^-): ≤0.005%, fluoride (F^-): ≤0.0005%, sulfate (SO₄^2-): ≤0.005%

cation traces

Fe: ≤0.001%, excess alkali (as NaOH): ≤2.5%, heavy metals (as Pb): ≤0.001%

storage temp.

2-30°C

Quality Level

300