Sodium Phosphate Dibasic Heptahydrate,
500 Grams
RP-S23175-500.0

Sodium Phosphate Dibasic Heptahydrate,
500 Grams
RP-S23175-500.0

Research or further manufacturing use only, not for food or drug use.

CAS Number: 7782-85-6

Molecular Weight: 268.07

Chemical Formula: Na2HPO4 • 7H2O

Solubility: Water

Storage Temperature: Room Temperature

Sodium Phosphate Dibasic Heptahydrate, also known as disodium hydrogen phosphate heptahydrate, is a chemical compound with significant applications in the life science marketplace. It is a hydrated form of sodium phosphate dibasic, meaning it contains seven water molecules per molecule of the compound.

Sodium Phosphate Dibasic Heptahydrate is primarily used as a buffering agent and as a source of phosphate ions. Buffers help maintain a stable pH in biological and biochemical processes, ensuring optimal conditions for enzymatic reactions, cell culture, and other molecular biology techniques.

It is also commonly used in laboratory settings for the preparation of buffer solutions with specific pH ranges and buffering capacities. It is particularly useful in applications where a higher pH range is required, as it has a buffering capacity in the alkaline pH range.

Moreover, the compound is used in various biological and biochemical assays, protein purification processes, and the formulation of diagnostic kits and pharmaceutical products. It serves as a source of phosphate ions, which are essential for numerous biological processes such as DNA and RNA synthesis, energy metabolism, and signal transduction.

Appearance: Fine White Crystalline Powder Phosphate Test (ID): Pass Sodium Test (ID): Pass Arsenic: ≤ 16 ppm Assay: 98.0 - 100.5 % Chloride (Cl): ≤ 0.06 % Heavy Metals: ≤ 20 ppm Insoluble Matter: ≤ 0.4 % Loss on Drying: 43.0 - 50.0 % Residual Solvents: Conforms Sulfate: ≤ 0.2 % Aerobic Plate Count: ≤ 1000 CFU/g Yeast and Mold Count: ≤ 100 CFU/g Total Coliforms: Negative BSE/TSE Free: BSE/TSE Free Grade: USP