Sodium phosphate dibasic heptahydrate
ALDRICH/431478 - ≥99.99% trace metals basis
Synonym: Disodium hydrogen phosphate heptahydrate; Disodium phosphate
CAS Number: 7782-85-6
Empirical Formula (Hill Notation): HNa2O4P · 7H2O
Molecular Weight: 268.07
EC Number: 237-707-0
MDL Number: MFCD00149180
Linear Formula: Na2HPO4 · 7H2O
Product Type: Chemical
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This image depicts SKU: 431478-250G
This image depicts SKU: 431478-250G
| anion traces | chloride (Cl-): ≤0.001% |
| sulfate (SO42-): ≤0.005% | |
| assay | ≥99.99% trace metals basis |
| cation traces | Fe: ≤0.001% |
| heavy metals: ≤0.001% | |
| density | 1.68 g/mL at 25 °C (lit.) |
| form | solid |
| impurities | ≤0.005% insolubles |
| <100 ppm total metallic impurities | |
| InChI | 1S/2Na.H3O4P.7H2O/c;;1-5( |
| InChI key | PYLIXCKOHOHGKQ-UHFFFAOYSA |
| pH | 8.7-9.3 |
| SMILES string | O.O.O.O.O.O.O.[Na+].[Na+] |
| vapor density | 4.9 (vs air) |
| Application: | Sodium phosphate dibasic heptahydrate has been used to prepare sodium phosphate buffer and phosphate-buffered saline (PBS) buffer.[44} |
| Features and Benefits: | Meets A.C.S. reagent specifications. |
| Packaging: | 50, 250 g in poly bottle |
| RIDADR | UN 3077 9 / PGIII |
| WGK Germany | WGK 3 |
| Flash Point(F) | Not applicable |
| Flash Point(C) | Not applicable |
| Purity | ≥99.99% trace metals basis |
| Density | 1.68 g/mL at 25 °C (lit.) |
| UNSPSC | 12352302 |