Potassium phosphate is a reagent with high buffering capacity. It occurs in several forms: monobasic, dibasic and tribasic (K3PO4). Most pH neutral potassium phosphate buffer solutions consist of mixtures of the monobasic and dibasic forms to varying degrees, depending on the desired pH.
Potassium phosphate monobasic is typically used as a component for a wide variety of media used in the culture of microorganisms. It is widely used in molecular biology, biochemistry, and chromatography. It is a component in phosphate buffered saline (PBS). In addition to helping maintain pH, it supplies essential phosphate.
Grade: Anhydrous, Cell culture reagent
Assay: ≥99.0%
Suitability: Suitable for cell culture, plant cell culture, insect cell culture.
Key Applications: Cell culture reagent, Component in phosphate buffered saline
Application Areas: Molecular biology, Media component, buffer
Product Type: Inorganics
Biochemical Category: Salts
Chemical Class: Salts
Density: 2.338 g/mL at 25°C(lit.)
Melting Point: 250°C with decomposition (Lit.)
Presentation: White Crystalline Powder
Format: Crystalline Powder
pH: 4.1 - 4.5 (5% aq soln)
pKa: pKa: (1) 2.15, (2) 6.82, (3) 12.38 (phosphoric acid) at 25°C(Lit.)
Solubility: Soluble in water(100 mg/mL); Insoluble to slightly soluble in ethanol; insoluble in alcohol.
Storage & Handling: Room Temperature, desiccate