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Appearance
|
White crystalline powder
|
|
Assay
|
Min 99%
|
|
RP gradient test
|
Corresponds to standard
|
|
Filter test
|
Corresponds to standard
|
|
Solubility (0.1 g/mL in water; 25°C)
|
Complete, colorless
|
|
pH (10% solution in water; 20°C)
|
4.0-4.5
|
|
Absorption (0.5 M solution in water)
|
|
|
at 210 nm
|
Max 0.1
|
|
at 260 nm
|
Max 0.06
|
|
at 280 nm
|
Max 0.04
|
|
at 320 nm
|
Max 0.02
|
|
at 500 nm
|
Max 0.02
|