Appearance
|
White hygroscopic crystalline powder
|
Assay
|
Min 99%
|
Solubility (0.1 g/mL in water; 25°C)
|
Complete, colourless
|
pH (10% solution in water)
|
8.5 - 9.6
|
Loss on drying (at 105°C)
|
Max 1.0%
|
UV absorbance (10% in water)
|
-
|
at 230 nm
|
Max 0.15
|
at 240 nm
|
Max 0.12
|
at 250 nm
|
Max 0.11
|
at 310 nm
|
Max 0.05
|
at 500 nm
|
Max 0.02
|