Sodium Phosphate Dibasic Anhydrous 99% AR
sec-Sodium phosphate; Disodium hydrogen phosphate; Disodium phosphat; Sodium hydrogen phosphate
Product Code. |
02481 |
Grade |
|
Purity |
99% |
CAS No. |
7558-79-4 |
Molecular Formula |
Na2HPO4 |
Molecular Weight |
141.96 |
H.S.Code |
2835.29900 |
Shelf Life |
60 Months |
Physical Properties
| Physical state at 20 °C |
Solid |
Colour |
White crystalline |
Odour |
Odorless |
| pH value |
8.9 - 9.2 at 50 g/l at 25 °C |
Melting point/ Freezing point [°C] |
240°C |
Decomposition point [°C] |
240°C |
| Vapour density |
4.9 |
Density [g/cm3] |
1.52 |
Solubility in water [% weight] |
Soluble in water |
Packaging
Specification
| Appearance | White crystalline powder |
| Assay (on anhydrous basis) | Min 99% |
| pH (5% solution in water) | 8.7 - 9.3 |
| Insoluble matter | Max 0.01% |
| Chloride (Cl) | Max 0.002% |
| Nitrogen compounds (as N) | Max 0.002% |
| Sulphate (SO4) | Max 0.005% |
| Copper (Cu) | Max 0.001% |
| Iron (Fe) | Max 0.001% |
| Lead (Pb) | Max 0.001% |
| Potassium (K) | Max 0.01% |
| Loss on drying (at 130°C) | Max 5.0% |
Safety Information and Hazard Symbols