Sodium phosphate dibasic heptahydrate is a reagent with very high buffering capacity widely used in molecular biology, biochemistry and chromatography. Sodium phosphate dibasic is highly hygroscopic and water soluble. Useful in conjunction with Sodium Phosphate, Monobasic in the preparation of biological buffers.
Sodium phosphate dibasic heptahydrate is used in many applications such as sequestrant, emulsifier and buffer in foods. As mordant in dyeing for weighting silk, in tanning. in manufacturing of enamels, ceramics, detergents; as fireproofing agent in soldering and brazing instead of borax; as reagent and buffer in analytical chemistry, cathartic, laxative.
Grade: ACS Grade
Purity: ≥98%
Key Applications: Sequestrant, Emulsifier, Buffer in foods, Mordant in dyeing, Tanning, Fireproofing agent, Laxative
Product Type: Inorganics
Biochemical Category: Salt
Density: 1.679 g/mL(Lit.)
Melting Point: 48°C (loses H2O)(Lit.)
Vapor Density: 4.9 (vs air)(Lit.)
Presentation: White Crystalline Powder
Format: Crystalline Powder
pH: 8.7 - 9.3 (5% aq soln)
Heavy Metals: ≤0.001%
Insoluble Matter: ≤0.005%
NOTES: Chloride= ≤0.001%; Sulfate (SO4)= ≤0.005%; Iron (Fe)= ≤0.001%
Solubility: Soluble in water, but more soluble in hot water; insoluble in alcohol, ethanol.
Storage & Handling: Store at Room Temperature (15-30°C)