S3264

Sodium phosphate dibasic

for molecular biology, ≥98.5% (titration)

• Synonym(s): Sodium hydrogenphosphate, Disodium phosphate, Disodium hydrogen phosphate, sec-Sodium phosphate
• 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: 24899552
• NACRES: NA.25

Properties

• Quality Level: 200
• grade: for molecular biology
• assay: ≥98.5% (titration)
• form: powder
• 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: H₂O: 100 mg/mL
• anion traces: chloride (Cl^-): ≤40 ppm
• cation traces: Fe: ≤20 ppm; heavy metals (as Pb): ≤10 ppm
• application(s): diagnostic assay manufacturing
• foreign activity: DNase, RNase and protease, none detected
• 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: 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