di-Sodium hydrogen phosphate dihydrate
SIGMA/71643 - BioUltra, Molecular Biology, ≥99.0% (T)
Synonym: sec-Sodium phosphate; Disodium hydrogen phosphate dihydrate; Disodium phosphate; Sodium phosphate dibasic dihydrate
CAS Number: 10028-24-7
Empirical Formula (Hill Notation): HNa2O4P · 2H2O
Molecular Weight: 177.99
EC Number: 231-448-7
MDL Number: MFCD00149182
Linear Formula: Na2HPO4 · 2H2O
Product Type: Chemical
| λ | 0.5 M in H2O |
| anion traces | chloride (Cl-): ≤10 mg/kg |
| sulfate (SO42-): ≤50 mg/kg | |
| application(s) | diagnostic assay manufacturing |
| 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 | |
| Ni: ≤5 mg/kg | |
| Pb: ≤5 mg/kg | |
| Sr: ≤5 mg/kg | |
| Zn: ≤5 mg/kg | |
| form | crystals |
| grade | Molecular Biology |
| impurities | DNases, none detected |
| insoluble matter, passes filter test | |
| phosphatases, none detected | |
| proteases, none detected | |
| RNases, none detected | |
| ≤0.001% total nitrogen (N) | |
| InChI | 1S/2Na.H3O4P.2H2O/c;;1-5( |
| InChI key | KDQPSPMLNJTZAL-UHFFFAOYSA |
| pH | 8.9-9.2 (25 °C, 0.5 M in H2O) |
| product line | BioUltra |
| Quality Level | 200  |
| SMILES string | O.O.[Na+].[Na+].OP([O-])( |
| solubility | H2O: 0.5 M at 20 °C, clear, colorless |
| UV absorption | λ: 260 nm Amax: 0.03 |
| λ: 280 nm Amax: 0.03 |
| Application: | Sodium phosphate dibasic dehydrate has been used in the preparation of antifreeze solution to analyse the transduction pattern in the rat central nervous system (CNS) and in the preparation of sodium phosphate buffer. |
| Other Notes: | Gel electrophoresis - running buffer component for denaturing gels containing formamide. |
| RIDADR | UN 3077 9 / PGIII |
| WGK Germany | WGK 1 |
| Flash Point(F) | Not applicable |
| Flash Point(C) | Not applicable |
| Purity | ≥99.0% (T) |
| UNSPSC | 12161700 |