Sodium phosphate dibasic anhydrous is a sodium salt of phosphoric acid. It is a white powder that is highly hygroscopic and water soluble.
Sodium phosphate dibasic has been used for preparing phosphate buffer which in turn is utilized in X-gal staining.
Sodium phosphate dibasic is an important component of running buffer of denaturing gel electrophoresis. It induces glomerular calcification as well as other nephrotic syndrome in Sprague-Dawley rats.
Grade: Anhydrous, USP
Assay: 98.0 - 100.5%
Potency: ≤0.002%
Key Applications: Additive, Buffer
Product Type: Inorganics
Biochemical Category: Salts
Melting Point: ca. 250°C with decomposition(lit.)
Presentation: White Crystalline Solid
pH: 8.4-9.6 (20°C, 1%) (lit.)
pKa: (1) 2.15, (2) 6.82, (3) 12.38 (phosphoric acid) (lit.)
Heavy Metals: ≤0.002%
Insoluble Matter: ≤0.4%
Loss on Drying: ≤5.0%
NOTES: Chloride ≤0.06% Sulfate: ≤0.2% Arsenic: ≤16 ppm
Solubility: Freely soluble in water; insoluble in alcohol
Storage & Handling: Room Temperature, desiccate