Sodium phosphate tribasic dodecahydrate
SIGMA/S7778 - BioXtra, ≥98.0% (titration)
Synonym: TSP; Trisodium phosphate (tert) dodecahydrate; Trisodium phosphate dodecahydrate
CAS Number: 10101-89-0
Empirical Formula (Hill Notation): Na3O4P · 12H2O
Molecular Weight: 380.12
EC Number: 231-509-8
MDL Number: MFCD00149198
Linear Formula: Na3PO4 · 12H2O
Product Type: Chemical
| absorption | ≤0.023 at 280 in H2O at 0.5 M |
| ≤0.035 at 260 in H2O at 0.5 M | |
| anion traces | chloride (Cl-): ≤0.005% |
| sulfate (SO42-): ≤0.005% | |
| application(s) | diagnostic assay manufacturing |
| assay | ≥98.0% (titration) |
| cation traces | Al: ≤0.0005% |
| Ba: ≤0.0005% | |
| Bi: ≤0.0005% | |
| Ca: ≤0.001% | |
| Cd: ≤0.0005% | |
| Co: ≤0.0005% | |
| Cr: ≤0.0005% | |
| Cu: ≤0.0005% | |
| Fe: ≤0.0005% | |
| K: ≤0.005% | |
| Li: ≤0.0005% | |
| Mg: ≤0.0005% | |
| Mn: ≤0.0005% | |
| Mo: ≤0.0005% | |
| Ni: ≤0.0005% | |
| Pb: ≤0.0005% | |
| Sr: ≤0.0005% | |
| Zn: ≤0.0005% | |
| density | 1.62 g/mL at 25 °C |
| form | powder |
| impurities | Insoluble matter, passes filter test |
| ≤3% Free alkali (as NaOH) | |
| InChI | 1S/3Na.H3O4P.12H2O/c;;;1- |
| InChI key | ASTWEMOBIXQPPV-UHFFFAOYSA |
| pH | ~13.0 (20 °C, 0.5 M in water) |
| product line | BioXtra |
| Quality Level | 200  |
| SMILES string | O.O.O.O.O.O.O.O.O.O.O.O.[ |
| solubility | H2O: 0.5 M at 20 °C, clear, colorless |
| Symbol |  GHS07 |
| Signal word | Warning |
| Hazard statements | H315 - H319 - H335 |
| Precautionary statements | P302 + P352 - P305 + P351 + P338 |
| Hazard Codes | C |
| Risk Statements | 34 |
| Safety Statements | 26-36/37/39-45 |
| RIDADR | NONH for all modes of transport |
| WGK Germany | WGK 1 |
| Flash Point(F) | Not applicable |
| Flash Point(C) | Not applicable |
| Purity | ≥98.0% (titration) |
| Density | 1.62 g/mL at 25 °C |
| UNSPSC | 12161700 |