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
This picture is provided solely for illustration purposes. Optical properties of the actual product may deviate. Relevant product information is printed on labeled products and other accompanying or available information material.
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 |
| functional group | phosphate |
| 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 |
| Quality Level | 200  |
| 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 |