1.06579

di-Sodium hydrogen phosphate dodecahydrate

for analysis EMSURE^® ISO,Reag. Ph Eur

• Synonym(s): Sodium phosphate dibasic dodecahydrate, Sodium monohydrogen phosphate, Sodium phosphate dibasic, sec-Sodium phosphate, Disodium hydrogen phosphate dodecahydrate, Disodium phosphate, di-Sodium hydrogen phosphate dodecahydrate
• Linear Formula: Na₂HPO₄ · 12H₂O
• CAS Number: 10039-32-4
• Molecular Weight: 358.14
• MDL number: MFCD00149181
• UNSPSC Code: 12352302
• EC Index Number: 231-448-7
• NACRES: NA.21

Properties

• agency: reag. ISO; reag. Ph. Eur.
• Quality Level: 300
• product line: EMSURE^®
• assay: 99.0-102.0% (alkalimetric)
• form: solid
• potency: >2000 mg/kg LD₅₀, oral (Rat)
• composition: Water, 57-61%
• impurities: ≤2.5% Sodium Dihydrogene phospate
• pH: 9.0-9.3 (20 °C, 50 g/L in H₂O)
• solubility: 218 g/L
• density: 1.52 g/cm³ at 20 °C
• bulk density: 800‑900 kg/m³
• anion traces: chloride (Cl^-): ≤0.0005%; sulfate (SO₄^2-): ≤0.005%
• cation traces: As: ≤0.00005%; Cu: ≤0.0002%; Fe: ≤0.0005%; K: ≤0.005%; N: ≤0.001%; Pb: ≤0.0005%; heavy metals (as Pb): ≤0.0005%
• storage temp.: 15-25°C
• SMILES string: O.O.O.O.O.O.O.O.O.O.O.O.[Na+].[Na+].OP([O-])([O-])=O
• InChI: 1S/2Na.H3O4P.12H2O/c;;1-5(2,3)4;;;;;;;;;;;;/h;;(H3,1,2,3,4);12*1H2/q2*+1;;;;;;;;;;;;;/p-2
• InChI key: DGLRDKLJZLEJCY-UHFFFAOYSA-L

Description

Linkage

Replaces: SX0718; SX0718-1

Analysis Note

Assay (alkalimetric): 99.0 - 102.0 %
Identity: passes test
Appearance of solution: passes test
Sodium Dihydrogene phospate: ≤ 2.5 %
pH-value (5 %; water): 9.0 - 9.3
Chloride (Cl): ≤ 0.0005 %
Sulfate (SO₄): ≤ 0.005 %
Total nitrogen (N): ≤ 0.001 %
Heavy metals (as Pb): ≤ 0.0005 %
As (Arsenic): ≤ 0.00005 %
Cu (Copper): ≤ 0.0002 %
Fe (Iron): ≤ 0.0005 %
K (Potassium): ≤ 0.005 %
Pb (Lead): ≤ 0.0005 %
Reducing substances: passes test
Water: 57.0 - 61.0 %
Corresponds to ISO,Reag. Ph Eur

Legal Information

EMSURE is a registered trademark of Merck KGaA, Darmstadt, Germany

Safety Information

• Storage Class: 13 - Non Combustible Solids
• wgk_germany: WGK 1
• flash_point_f: Not applicable
• flash_point_c: Not applicable