795496

Potassium phosphate dibasic

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

• Synonim(y): Dipotassium hydrogenphosphate, Dipotassium phosphate, sec.-Potassium phosphate
• Wzór liniowy: K₂HPO₄
• Numer CAS: 7758-11-4
• Masa cząsteczkowa: 174.18
• Numer WE: 231-834-5
• Numer MDL: MFCD00011383
• Kod UNSPSC: 12352302
• Identyfikator substancji w PubChem: 329768488
• NACRES: NA.21

Właściwości

• klasa czystości: ACS reagent; anhydrous
• Poziom jakości: 200
• agency: suitable for SM 5210
• linia produktu: Redi-Dri^™
• Próba: ≥98%
• Postać: powder
• jakość: free-flowing
• zanieczyszczenia: ≤0.001% Nitrogen compounds (as N); ≤0.01% Insoluble matter
• strata: ≤1.0% loss on drying, 105°C
• pH: 8.5-9.6 (25 °C, 5% in solution)
• pKa (25°C): (1) 2.15, (2) 6.82, (3) 12.38 (phosphoric acid)
• ślady anionów: chloride (Cl^-): ≤0.003%; sulfate (SO₄^2-): ≤0.005%
• ślady kationów: Fe: ≤0.001%; Na: ≤0.05%; heavy metals: ≤5 ppm (by ICP-OES)
• ciąg SMILES: [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
• Klucz InChI: ZPWVASYFFYYZEW-UHFFFAOYSA-L

Opis

Opis ogólny

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.

Zastosowanie

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

Cechy i korzyści

• 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

Informacje prawne

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

This page may contain text that has been machine translated.

Informacja o środkach bezpieczeństwa

• Kod klasy składowania: 11 - Combustible Solids
• Klasa zagrożenia wodnego (WGK): WGK 1
• Temperatura zapłonu (°F): Not applicable
• Temperatura zapłonu (°C): Not applicable