567547

Natriumphosphat, dibasisch, molekularbiologische Qualität, CAS-Nr. 7558-79-4, Calbiochem

Molecular Biology Grade; Useful in conjunction with Sodium Phosphate, Monobasic in the preparation of biological buffers.

• Synonym(e): Natriumphosphat, sec-Natriumphosphat, Dinatriumphosphat, Natriumhydrogenphosphat, di-Natriumhydrogenphosphat
• Lineare Formel: Na₂HPO₄
• CAS-Nummer: 7558-79-4
• Molekulargewicht: 141.96
• UNSPSC Code: 12161700
• NACRES: NA.25
• MDL number: MFCD00003496

Eigenschaften

• description: Merck USA index - 14, 8659
• Quality Segment: 100
• assay: ≥98.5% (titration)
• form: solid
• manufacturer/tradename: Calbiochem^®
• storage condition: OK to freeze, desiccated (hygroscopic)
• color: white
• pKa (25 °C): (1) 2.15, (2) 6.82, (3) 12.38 (phosphoric acid)
• solubility: water: 10%
• cation traces: heavy metals (as Pb): ≤0.001%
• absorption: ≤0.01 at 260 nm, ≤0.01 at 280 nm
• foreign activity: DNases, proteases, RNases, none detected
• shipped in: ambient
• storage temp.: 10-30°C
• InChI: 1S/2Na.H3O4P/c;;1-5(2,3)4/h;;(H3,1,2,3,4)/q2*+1;/p-2
• InChI key: BNIILDVGGAEEIG-UHFFFAOYSA-L

Beschreibung

General description

In Verbindung mit monobasischem Natriumphosphat (Kat.-Nr. 567545 oder 567549) bei der Herstellung von biologischen Puffern von Nutzen.

Molekularbiologisches Reagenz (Absorption: ≤0,01 bei 260 nm und 280 mm).

Legal Information

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

Disclaimer

Toxizität: Reizstoff (B)

Sicherheitshinweise

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