795496

Potassium phosphate dibasic

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

• Szinonimák: Dipotassium hydrogenphosphate, Dipotassium phosphate, sec.-Potassium phosphate
• Lineáris képlet: K₂HPO₄
• CAS-szám: 7758-11-4
• Molekulatömeg: 174.18
• EC-szám: 231-834-5
• MDL-szám: MFCD00011383
• UNSPSC kód: 12352302
• PubChem Substance ID: 329768488
• NACRES: NA.21
• Teszt: ≥98%
• grade: ACS reagent; anhydrous
• Forma: powder

Tulajdonságok

• grade: ACS reagent; anhydrous
• Minőségi szint: 200
• Ügynökség: suitable for SM 5210
• termékcsalád: Redi-Dri^™
• Teszt: ≥98%
• Forma: powder
• minőség: free-flowing
• szennyeződések: ≤0.001% Nitrogen compounds (as N); ≤0.01% Insoluble matter
• veszteség: ≤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)
• anion nyomok: chloride (Cl^-): ≤0.003%; sulfate (SO₄^2-): ≤0.005%
• kation nyomok: 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
• Nemzetközi kémiai azonosító kulcs: ZPWVASYFFYYZEW-UHFFFAOYSA-L

Leírás

Általános leírás

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.

Alkalmazás

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

Tulajdonságok és előnyök

• 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

Jogi információk

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

Biztonsági adatok

• Tárolási osztály kódja: 11 - Combustible Solids
• WGK: WGK 1
• Lobbanási pont (F): Not applicable
• Lobbanási pont (C): Not applicable