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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 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 |
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% |