|
Appearance
|
White crystalline powder
|
|
Assay (acidimetric)
|
Min 99%
|
|
Filter test
|
Correspons to standard
|
|
RP gradient test
|
Correspons to standard
|
|
Solubility (0.1 g/mL in water; 20°C)
|
Complete, Colorless
|
|
pH (10% solution in water; 20°C)
|
4 - 5
|
|
UV absorbance (10% solution in water) at:
|
|
|
at 210 nm
|
Max 0.05
|
|
at 220 nm
|
Max 0.04
|
|
at 230 nm
|
Max 0.03
|
|
at 240 nm
|
Max 0.02
|
|
at 500 nm
|
Max 0.02
|