Packings
05446
Article No. 05446
Purity 99%
Molecular Formula C4H4KNaO6.4H2O
H.S. Code 2918.1390
Grade AR/ACS
CAS No. 6381-59-5
Molecular Weight 282.22
Shelf Life 60 Months

Physical Properties

Specifications

Safety Information and Hazard Symbols

Symbol:


Physical Properties

Physical state at 20 °C Solid Colour Colorless crystalline
Odour Odorless pH value 7.0 - 8.5
Melting point/ Freezing point [°C] 70°C Boiling point [°C] 220°C
Density [g/cm3] 1.79 Solubility in water [% weight] Soluble in water

Specifications

Appearance Colorless crystalline powder Assay 99 - 102%
Insoluble matter Max 0.005% pH (5% solution in water; 20°C) 7 - 8.5
Chloride (Cl) Max 0.0005% Sulphate (SO4) Max 0.005%
Phosphate (PO4) Max 0.001% Ammonium (NH4) Max 0.002%
Heavy metal (as Pb) Max 0.0005% Iron (Fe) Max 0.0005%
Copper (Cu) Max 0.0005% Calcium (Ca) Max 0.004%

Safety Information and Hazard Symbols

Safety Statement: 22-24/25