1.19753

di-Natriumhydrogenphosphat-Dihydrat

buffer substance for chromatography LiChropur^™

• Synonym(e): Natriumphosphat Dihydrat, Natriummonohydrogenphosphat, zweibasisches Natriumphosphat, sec-Natriumphosphat, Dinatriumphosphat, di-Natriumhydrogenphosphat, di-Natriumhydrogenphosphat Dihydrat
• Lineare Formel: Na₂HPO₄ · 2H₂O
• CAS-Nummer: 10028-24-7
• Molekulargewicht: 177.99
• NACRES: NB.21
• EC Index Number: 231-448-7
• UNSPSC Code: 12161703
• MDL number: MFCD00149182
• Assay: ≥99.0% (acidimetric)
• Grade: reagent grade
• Form: solid

Eigenschaften

• grade: reagent grade
• Quality Segment: 100
• assay: ≥99.0% (acidimetric)
• form: solid
• potency: >2000 mg/kg LD₅₀, oral (Rat)
• technique(s): HPLC: suitable
• pH: 9.0-9.4 (20 °C, 50 g/L in H₂O)
• mp: 92.5 °C (Elimination of water of crystallisation)
• density: 2.1 g/cm³ at 20 °C
• bulk density: 850‑1000 kg/m³
• storage temp.: 2-30°C
• InChI: 1S/2Na.H3O4P.2H2O/c;;1-5(2,3)4;;/h;;(H3,1,2,3,4);2*1H2/q2*+1;;;/p-2
• InChI key: KDQPSPMLNJTZAL-UHFFFAOYSA-L

Beschreibung

Analysis Note

Identität: entspricht
pH-Wert (5 %; Wasser): 9,0–9,2
Gehalt (acidimetrisch): ≥ 99,0 %
Selbstabsorption (215 nm; 0,2 mol/l; 1 cm; Wasser): ≤ 0,15
Selbstabsorption (220 nm; 0,2 mol/L; 1 cm; Wasser): ≤ 0,05
Selbstabsorption (254 nm; 0,2 mol/L; 1 cm; Wasser): ≤ 0,02

Legal Information

LiChropur is a trademark of Merck KGaA, Darmstadt, Germany

Sicherheitshinweise

• Lagerklasse: 13 - Non Combustible Solids
• wgk: WGK 1
• flash_point_f: Not applicable
• flash_point_c: Not applicable