255793

Sodium phosphate dibasic

99.95% trace metals basis

• Synonym(s): sec-Sodium phosphate, Disodium hydrogen phosphate, Disodium phosphate, Sodium hydrogenphosphate
• Linear Formula: Na₂HPO₄
• CAS Number: 7558-79-4
• Molecular Weight: 141.96
• EC Number: 231-448-7
• MDL number: MFCD00003496
• UNSPSC Code: 12352302
• eCl@ss: 38070211
• PubChem Substance ID: 24855481
• NACRES: NA.23
• form: solid
• solubility: water: soluble

Properties

• Quality Level: 100
• Assay: 99.95% trace metals basis
• form: solid
• reaction suitability: core: sodium
• impurities: ≤550.0 ppm Trace Metal Analysis
• pH: 8.9-9.2 (25 °C, 50 g/L in water)
• pKa (25 °C): (1) 2.15, (2) 6.82, (3) 12.38 (phosphoric acid)
• solubility: water: soluble
• 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

Application

Sodium phosphate dibasic is widely used to prepare phosphate buffer for mobilephase for HPLC and cell separation techniques.

Safety Information

• Storage Class Code: 13 - Non Combustible Solids
• WGK: WGK 1
• Flash Point(F): Not applicable
• Flash Point(C): Not applicable
• Personal Protective Equipment: dust mask type N95 (US), Eyeshields, Gloves