Description
ACS reagent, ≥98%
Synonyms: Dipotassium hydrogenphosphate, Dipotassium phosphate, sec.-Potassium phosphate
Linear Formula: K2HPO4
General description
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.
Application
Potassium phosphate dibasic has been used in the preparation of MMG (maltose, methyl green) medium, phosphate buffered saline and hypotonic solution.
Features and Benefits
- 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
PROPERTIES
grade
ACS reagent
Pack Sizes
100g; 500g
Agency
suitable for SM 5210
Assay
≥98%
form
powder
impurities
≤0.001% Nitrogen compounds (as N)
≤0.01% Insoluble matter
loss
≤1.0% loss on drying, 105°C
pH
8.5-9.6 (25 °C, 5% in solution)
anion traces
chloride (Cl–): ≤0.003%
sulfate (SO42-): ≤0.005%
cation traces
Fe: ≤0.001%
Na: ≤0.05%
heavy metals: ≤5 ppm (by ICP-OES)



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