567547

Sodium phosphate dibasic

Molecular Biology Grade; Useful in conjunction with Sodium Phosphate, Monobasic in the preparation of biological buffers.

• Synonym(s): Sodium phosphate dibasic, Na₂HPO₄, Sodium Phosphate, Dibasic, sec-Sodium phosphate, Disodium hydrogen phosphate, Disodium phosphate, Sodium hydrogenphosphate
• Linear Formula: Na₂HPO₄
• CAS Number: 7558-79-4
• Molecular Weight: 141.96
• MDL number: MFCD00003496
• UNSPSC Code: 12161700
• NACRES: NA.25

Properties

• Quality Level: 100
• assay: ≥98.5% (titration)
• form: solid
• manufacturer/tradename: Calbiochem^®
• storage condition: OK to freeze; desiccated (hygroscopic)
• color: white
• pKa (25 °C): (1) 2.15, (2) 6.82, (3) 12.38 (phosphoric acid)
• solubility: water: 10%
• cation traces: heavy metals (as Pb): ≤0.001%
• absorption: ≤0.01 at 260 nm; ≤0.01 at 280 nm
• foreign activity: DNases, proteases, RNases, none detected
• shipped in: ambient
• storage temp.: 10-30°C
• SMILES string: [Na+].[Na+].[H]OP([O-])([O-])=O
• InChI: 1S/2Na.H3O4P/c;;1-5(2,3)4/h;;(H3,1,2,3,4)/q2*+1;/p-2
• InChI key: BNIILDVGGAEEIG-UHFFFAOYSA-L

Description

General description

Molecular biology reagent (absorbance: ≤0.01 at 260 nm and 280 nm).

Useful in conjunction with Sodium Phosphate, Monobasic (Cat. No. 567545 or 567549) in the preparation of biological buffers.

Warning

Toxicity: Irritant (B)

Legal Information

CALBIOCHEM is a registered trademark of Merck KGaA, Darmstadt, Germany

Safety Information

• Storage Class: 13 - Non Combustible Solids
• wgk_germany: WGK 1
• flash_point_f: Not applicable
• flash_point_c: Not applicable