Sodium phosphate dibasic
SIAL/S7907 - BioXtra, ≥99.0%
Synonym: sec-Sodium phosphate; Disodium hydrogen phosphate; Disodium phosphate; Sodium hydrogenphosphate
CAS Number: 7558-79-4
Empirical Formula (Hill Notation): Na2HPO4
Molecular Weight: 141.96
EC Number: 231-448-7
MDL Number: MFCD00003496
Linear Formula: Na2HPO4
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: S7907-100G
This image depicts SKU: S7907-100G
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: S7907-500G
This image depicts SKU: S7907-500G
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: S7907-1KG
This image depicts SKU: S7907-1KG
| absorption | <0.05 at 260 in H2O at 1 M |
| <0.05 at 280 in H2O at 1 M | |
| anion traces | chloride (Cl-): ≤0.05% |
| sulfate (SO42-): ≤0.05% | |
| assay | ≥99.0% |
| cation traces | Al: ≤0.0005% |
| Ca: ≤0.002% | |
| Cu: ≤0.0005% | |
| Fe: ≤0.002% | |
| K: ≤0.005% | |
| Mg: ≤0.005% | |
| NH4+: ≤0.05% | |
| Pb: ≤0.001% | |
| Zn: ≤0.0005% | |
| form | powder or crystals |
| impurities | ≤0.1% Insoluble matter |
| InChI | 1S/2Na.H3O4P/c;;1-5(2,3)4 |
| InChI key | BNIILDVGGAEEIG-UHFFFAOYSA |
| pH | 8.0-11.0 (20 °C, 1 M in H2O) |
| pKa (25 °C) | (1) 2.15, (2) 6.82, (3) 12.38 (phosphoric acid) |
| product line | BioXtra |
| Quality Level | 200  |
| SMILES string | [Na+].[Na+].[H]OP([O-])([ |
| solubility | H2O: 1 M at 20 °C, clear, colorless |
| Application: | Sodium phosphate dibasic has been used:• as a component of phosphate buffered saline (PBS) • as a component of buffer for the preparation of cryopreservation diluent • in the preparation of McIlvaine buffer (citrate-phosphate buffer) for toluidine blue staining • in the preparation of the S9 mix for the Ames test, and SOS Chromotest • in the preparation of calcium deficient hydroxyapatite (CDHA) paste during the fabrication process of the CDHA scaffold |
| Features and Benefits: | • The BioXtra product line ensures high-quality products for consistent results. • High level of assay ( ≥99.0%), indicating its purity. • Powder form for easy handling and use. |
| General description: | Sodium phosphate dibasic (NaH2PO4), also known as disodium phosphate, is a commonly used phosphate salt in biochemistry research due to its versatile properties. It is a key component in the preparation of phosphate buffer saline (PBS) and phosphate buffer, a commonly used buffer solution in many biological applications. In addition to its buffer properties, NaH2PO4 is also used as a precipitating agent to form silver orthophosphate (Ag3PO4) powders, making it a valuable tool in many laboratory settings. Disodium phosphate is also a widely used emulsifier in dairy products such as cheese and other foods. |
| Packaging: | 1 kg in poly bottle |
| Packaging: | 100, 500 g in poly bottle |
| Packaging: | 5 kg in poly drum |
| RIDADR | UN 3077 9 / PGIII |
| WGK Germany | WGK 1 |
| Flash Point(F) | Not applicable |
| Flash Point(C) | Not applicable |
| Purity | ≥99.0% |
| UNSPSC | 12161700 |