Sodium dihydrogen phosphate dihydrate

Agency

reag. Ph. Eur.

Quality Level

300

product line

EMSURE^®

Assay

99.0-100.5% dry basis (alkalimetric)

form

crystals

potency

8290 mg/kg LD₅₀ oral (Rat)
>7940 mg/kg LD₅₀ skin (Rabbit)

impurities

≤0.15% In water insoluble matter (calculated on dried substance)

loss

21.5-24.0% loss on drying 130 °C

pH

4.5 (25 °C 12 g/L in H₂O)

mp

60 °C

solubility

850 g/L

density

1.915 g/cm³ at 20 °C

bulk density

1000 kg/m³

anion traces

chloride (Cl^–): ≤0.0005%
fluoride (F^–): ≤0.001%
phosphate phosphite (as H₃PO₄): ≤0.5%
sulfate (SO₄^2-): ≤0.01%

cation traces

Al: passes test (detectable with ammonia)
As: ≤0.00005%
Ca: ≤0.005%
Ca: passes test (detectable with ammonia)
Cd: ≤0.0001%
Co: ≤0.005%
Cu: ≤0.005%
Fe: ≤0.001%
Hg: ≤0.0001%
K: ≤0.005%
Mg: ≤0.005%
N: ≤0.001%
Ni: ≤0.005%
Pb: ≤0.0004%
Zn: ≤0.025%
heavy metals (as Pb): ≤0.0005%

storage temp.

2-30°C

SMILES string

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

InChI

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

InChI key

VBJGJHBYWREJQD-UHFFFAOYSA-M