Synonyms: sec-Sodium phosphate; Disodium hydrogen phosphate; Disodium phosphate; Sodium hydrogenphosphate
Formula: Na2HPO4
Formula Weight: 141.96
CAS No.: 7558-79-4
Purity: ≥99.0%
Abs.: A1M/280, H2O <0.05
Anion Traces: chloride (Cl-): ≤0.05%
Assay: ≥99.0%
Cation Traces: Fe: ≤0.002%
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)
Product Line: BioXtra
Solubility: H2O: soluble1 M at 20°C, clear, colorless