| CAS ID | 10039-32-4 |
|---|---|
| IUPAC Name | disodium;hydrogen phosphate;dodecahydrate |
| Molecular Formula | H25Na2O16P |
| Molecular Weight | |
| SMILES | O.O.O.O.O.O.O.O.O.O.O.O.OP(=O)([O-])[O-].[Na+].[Na+] |
| CAS ID | 10039-32-4 |
|---|---|
| IUPAC Name | disodium;hydrogen phosphate;dodecahydrate |
| Molecular Formula | H25Na2O16P |
| Molecular Weight | |
| SMILES | O.O.O.O.O.O.O.O.O.O.O.O.OP(=O)([O-])[O-].[Na+].[Na+] |
| 61456 |
Synonym : disodium phosphate dodecahydrate, disodium hydrogen phosphate dodecahydrate, phosphoric acid, disodium salt, dodecahydrate, di-sodium hydrogen phosphate dodecahydrate, sodium hydrogenphosphate dodecahydrate, unii-e1w4n241fo, sodium phosphate dibasic dodecahydrate, sodium phosphate, dibasic, dodecahydrate, disodium orthophosphate, dodecahydrate, sodium monohydrogen phosphate dodecahydrate 2:1:1:12
| Assay Percent Range | 99% |
| Linear Formula | Na2HPO4·12H2O |
| Merck Index | 15,8789 |
| Solubility Information | Solubility in water: 218g/L (20°C). Other solubilities: practically insoluble in alcohol |
| Formula Weight | 358.13 |
| Grade | Extra Pure |
| Packaging | Plastic bottle |
| Solubility | Solubility in water: 218g/L (20°C). Other solubilities: practically insoluble in alcohol |
| Melting Point | 35.0°C |
| Chemical Name or Material | Sodium phosphate, dibasic dodecahydrate |
Our scientists have experience in all research areas, including life science, material science, chemical custom synthesis, chromatography, analytical science, and many others.
Disodium Phosphate Dodecahydrate is an inorganic compound with the formula Na₂HPO₄·12H₂O. It is the hydrated form of disodium hydrogen phosphate and appears as a white crystalline solid. It is widely used in laboratories, food processing, and industrial applications.
Common uses of Disodium Phosphate Dodecahydrate include its role as a buffering agent, emulsifier, and pH regulator. It is used in food additives, detergents, water treatment, pharmaceuticals, and analytical chemistry.
In labs, it's often used as a reagent in buffer solutions, particularly in biochemical and pharmaceutical research, to maintain stable pH levels during experiments.
The melting point of Disodium Phosphate Dodecahydrate is approximately 35–37°C (95–98.6°F). At this temperature, the compound begins to lose its water of hydration and transition into an anhydrous or lower hydrate form.
The boiling point of Disodium Phosphate Dodecahydrate is not well-defined because the compound decomposes upon heating, losing its hydration water before it reaches a true boiling point. It is not typically boiled in standard procedures.
