60494

Potassium phosphate tribasic monohydrate

BioUltra, ≥95% (T)

• Synonym(s): tert-Potassium phosphate monohydrate, Tripotassium phosphate
• Empirical Formula (Hill Notation): K₃O₄P · H₂O
• CAS Number: 27176-10-9
• Molecular Weight: 230.28
• EC Number: 231-907-1
• MDL number: MFCD00150410
• UNSPSC Code: 12161700
• PubChem Substance ID: 24881892

Properties

• product line: BioUltra
• assay: ≥95% (T)
• impurities: insoluble matter, passes filter test; ≤0.6% free alkali
• loss: ≤13% loss on ignition, 800 °C
• pH: 12.5-14.0 (25 °C, 1 M in H₂O)
• solubility: H₂O: 1 M at 20 °C, clear, colorless
• anion traces: chloride (Cl^-): ≤50 mg/kg; sulfate (SO₄^2-): ≤200 mg/kg
• cation traces: Al: ≤5 mg/kg; As: ≤0.1 mg/kg; Ba: ≤5 mg/kg; Bi: ≤5 mg/kg; Ca: ≤10 mg/kg; Cd: ≤5 mg/kg; Co: ≤5 mg/kg; Cr: ≤5 mg/kg; Cu: ≤5 mg/kg; Fe: ≤5 mg/kg; Li: ≤5 mg/kg; Mg: ≤5 mg/kg; Mn: ≤5 mg/kg; Mo: ≤5 mg/kg; Na: ≤1000 mg/kg; Ni: ≤5 mg/kg; Pb: ≤5 mg/kg; Sr: ≤5 mg/kg; Zn: ≤5 mg/kg
• λ: 1 M in H₂O
• UV absorption: λ: 260 nm A_max: 0.03; λ: 280 nm A_max: 0.02
• SMILES string: O.[K+].[K+].[K+].[O-]P([O-])([O-])=O
• InChI: 1S/3K.H3O4P.H2O/c;;;1-5(2,3)4;/h;;;(H3,1,2,3,4);1H2/q3*+1;;/p-3
• InChI key: RMNIZOOYFMNEJJ-UHFFFAOYSA-K