Sodium phosphate monobasic monohydrate
SIGMA/71507 - BioXtra, Molecular Biology, ≥99.5% (T)
Synonym: Monosodium phosphate; Sodium dihydrogen phosphate monohydrate
CAS Number: 10049-21-5
Empirical Formula (Hill Notation): H2NaO4P · H2O
Molecular Weight: 137.99
EC Number: 231-449-2
MDL Number: MFCD00149208
Linear Formula: NaH2PO4 · H2O
Product Type: Chemical
| λ | 1 M in H2O |
| anion traces | chloride (Cl-): ≤5 mg/kg |
| sulfate (SO42-): ≤30 mg/kg | |
| assay | ≥99.5% (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/Na.H3O4P.H2O/c;1-5(2,3 |
| InChI key | BBMHARZCALWXSL-UHFFFAOYSA |
| pH | 4.0-4.5 (25 °C, 1 M in H2O) |
| product line | BioXtra |
| Quality Level | 200  |
| SMILES string | [Na+].[H]O[H].OP(O)([O-]) |
| solubility | H2O: 1 M, clear, colorless |
| UV absorption | λ: 260 nm Amax: ≤0.03 |
| λ: 280 nm Amax: ≤0.02 |
| Application: | Sodium phosphate monobasic monohydrate has been used as a component of phosphate buffer to maintain the pH for the preparation of collagen gels and matrices. |
| RIDADR | NONH for all modes of transport |
| WGK Germany | WGK 3 |
| Flash Point(F) | Not applicable |
| Flash Point(C) | Not applicable |
| Purity | ≥99.5% (T) |
| UNSPSC | 12161700 |