S7907

Sodium phosphate dibasic

BioXtra, ≥99.0%

• 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
• eCl@ss: 38070211
• PubChem Substance ID: 24899769
• NACRES: NA.25

Properties

• product line: BioXtra
• Quality Level: 200
• Assay: ≥99.0%
• form: powder or crystals
• impurities: ≤0.1% Insoluble matter
• pH: 8.0-11.0 (20 °C, 1 M in H₂O)
• pKa (25 °C): (1) 2.15, (2) 6.82, (3) 12.38 (phosphoric acid)
• solubility: H₂O: 1 M at 20 °C, clear, colorless
• anion traces: chloride (Cl^-): ≤0.05%; sulfate (SO₄^2-): ≤0.05%
• cation traces: Al: ≤0.0005%; Ca: ≤0.002%; Cu: ≤0.0005%; Fe: ≤0.002%; K: ≤0.005%; Mg: ≤0.005%; NH₄⁺: ≤0.05%; Pb: ≤0.001%; Zn: ≤0.0005%
• absorption: <0.05 at 260 in H₂O at 1 M; <0.05 at 280 in H₂O at 1 M
• 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

Safety Information

• Storage Class Code: 11 - 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