795496

Kaliumphosphat

anhydrous, free-flowing, Redi-Dri^™, ACS reagent, ≥98%

• Synonym(e): Dikaliumhydrogenphosphat, Dikaliumphosphat, sek.-Kaliumphosphat
• Lineare Formel: K₂HPO₄
• CAS-Nummer: 7758-11-4
• Molekulargewicht: 174.18
• EG-Nummer: 231-834-5
• MDL-Nummer: MFCD00011383
• UNSPSC-Code: 12352302
• PubChem Substanz-ID: 329768488
• NACRES: NA.21

Eigenschaften

• Qualität: ACS reagent; anhydrous; free-flowing
• Qualitätsniveau: 200
• Agentur: suitable for SM 5210
• Produktlinie: Redi-Dri^™
• Assay: ≥98%
• Form: powder
• Verunreinigungen: ≤0.001% Nitrogen compounds (as N); ≤0.01% Insoluble matter
• Verlust: ≤1.0% loss on drying, 105°C
• pH-Wert: 8.5-9.6 (25 °C, 5% in solution)
• pKa (25 °C): (1) 2.15, (2) 6.82, (3) 12.38 (phosphoric acid)
• Anionenspuren: chloride (Cl^-): ≤0.003%; sulfate (SO₄^2-): ≤0.005%
• Kationenspuren: Fe: ≤0.001%; Na: ≤0.05%; heavy metals: ≤5 ppm (by ICP-OES)
• SMILES String: [K+].[K+].OP([O-])([O-])=O
• InChI: 1S/2K.H3O4P/c;;1-5(2,3)4/h;;(H3,1,2,3,4)/q2*+1;/p-2
• InChIKey: ZPWVASYFFYYZEW-UHFFFAOYSA-L

Beschreibung

Allgemeine Beschreibung

Potassium phosphate dibasic is a useful biological buffer having a pH in the range of 8.5–9.6. Potassium phosphate is present in various forms: monobasic (KH₂PO₄), dibasic (KH₂PO₄), and tribasic (K₃PO₄). Potassium phosphate buffers are widely employed in equilibrium dialysis, high performance liquid chromatography (HPLC) and affinity capillary electrophoresis studies.

Anwendung

Potassium phosphate dibasic has been used in the preparation of MMG (maltose, methyl green) medium, phosphate buffered saline and hypotonic solution.

Leistungsmerkmale und Vorteile

• Increased efficiency – Eliminate time and effort of loosening hardened powders
• Safety – Avoid risks of using tools of force to break up clumps
• Economy – Faster preparation and solvation increase productivity and reduce costs
• Assured quality – Excellent, expert-tested quality with no anti-caking agents
• Flexible volumes – Available from research amounts to scale-up quantities

Rechtliche Hinweise

Redi-Dri is a trademark of Sigma-Aldrich Co. LLC

Sicherheitshinweise

• Lagerklassenschlüssel: 11 - Combustible Solids
• WGK: WGK 1
• Flammpunkt (°F): Not applicable
• Flammpunkt (°C): Not applicable