Ammonium phosphate dibasic
SIAL/09839 - BioUltra, ≥99.0% (T)
Synonym: Ammonium hydrogenphosphate; Diammonium hydrogenphosphate; di-Ammonium hydrogenphosphate (sec)
CAS Number: 7783-28-0
Empirical Formula (Hill Notation): H9N2O4P
Molecular Weight: 132.06
EC Number: 231-987-8
MDL Number: MFCD00010891
Linear Formula: (NH4)2HPO4
Product Type: Chemical
| λ | 1 M in H2O |
| anion traces | chloride (Cl-): ≤5 mg/kg |
| nitrate (NO3-): ≤10 mg/kg | |
| sulfate (SO42-): ≤20 mg/kg | |
| assay | ≥99.0% (T) |
| 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 | |
| impurities | insoluble matter, passes filter test |
| InChI | 1S/2H3N.H3O4P/c;;1-5(2,3) |
| InChI key | MNNHAPBLZZVQHP-UHFFFAOYSA |
| mp | 155 °C (dec.) (lit.) |
| pH | 7.5-9.0 (25 °C, 1 M in H2O) |
| product line | BioUltra |
| Quality Level | 200  |
| SMILES string | N.N.OP(O)(O)=O |
| solubility | H2O: 1 M at 20 °C, clear, colorless |
| UV absorption | λ: 260 nm Amax: 0.065 |
| λ: 280 nm Amax: 0.065 |
| 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. |
| RIDADR | NONH for all modes of transport |
| WGK Germany | WGK 1 |
| Flash Point(F) | Not applicable |
| Flash Point(C) | Not applicable |
| Purity | ≥99.0% (T) |
| mp | 155 °C (dec.) (lit.) |
| UNSPSC | 12161700 |