|
Appearance
|
White crystalline powder
|
|
Melting point
|
170 - 173 deg C
|
|
pK (at 20°C)
|
8.3
|
|
Solubility (20°C)
|
800 g/L (H2O)
|
|
DNAase/RNAase/Proteases
|
Not detectable
|
|
Assay (titration)
|
Min 99.9%
|
|
pH (1 M in water at 20°C)
|
10.5 - 11.5
|
|
Water (H2O)
|
Max 0.2%
|
|
Copper (Cu)
|
Max 0.0001%
|
|
Iron (Fe)
|
Max 0.0001%
|
|
Lead (Pb)
|
Max 0.0001%
|
|
UV absorbance
|
-
|
|
at 260 nm (1 cm; 1 M in water)
|
Max 0.03
|
|
at 280 nm (1 cm; 1 M in water)
|
Max 0.02
|
|
at 430 nm (1 cm; 1 M in water)
|
Max 0.004
|