Ammonium phosphate dibasic
About This Item
Linear Formula:
(NH4)2HPO4
CAS Number:
7783-28-0
Molecular Weight:
132.06
Application
Ammonium phosphate dibasic can be used to study x-ray crystallography, biological buffers, optimization reagents, proteomics and protein structural analysis. Ammonium phosphate dibasic has been used in a study for the development and validation of a stability-indicating HPLC method for determination of voriconazole and its related substances. Ammonium phosphate dibasic has also been used to crystallize the native enzyme cellobiohydrolase IB using the hanging-drop vapour-diffusion method.
Quality Segment: 200
Assay: ≥99.0% (T)
Impurities: insoluble matter, passes filter test
pH: 7.5-9.0 (25 °C, 1 M in H2O)
Melting Point: 155 °C (dec.) (lit.)
Solubility: H2O: 1 M at 20 °C, clear, colorless
Anion Traces: chloride (Cl-): ≤5 mg/kg, nitrate (NO3-): ≤10 mg/kg, sulfate (SO42-): ≤20 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, K: ≤50 mg/kg, Li: ≤5 mg/kg, Mg: ≤5 mg/kg, Mn: ≤5 mg/kg, Mo: ≤5 mg/kg, Na: ≤50 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 Amax: 0.065, λ: 280 nm Amax: 0.065
SMILES String: N.N.OP(O)(O)=O
