Packings
05972
Article No. 05972
Purity 99%
Molecular Formula Na2HPO4
H.S. Code 2835.2990
Grade AR
CAS No. 7558-79-4
Molecular Weight 141.96
Shelf Life 60 Months

Physical Properties

Specifications

Safety Information and Hazard Symbols

Symbol:


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

Specifications

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 105°C; 4 hrs) Max 1.0%