tri-Sodium phosphate dodecahydrate

Quality Level

300

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

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