|
Appearance
|
White powder / crystals / crystalline powder
|
|
Assay (acidimetric)
|
Min 99.5%
|
|
DNases (exo and endonucleases)
|
None detected
|
|
Insoluble matter
|
Passes filter test
|
|
Non-volatile substances in MeOH/HCl
|
Max 0.05%
|
|
Phosphatase
|
None detected
|
|
RNases
|
None detected
|
|
Loss on drying (at 120°C)
|
Max 0.5%
|
|
Solubility (1 M in water)
|
Complete,colourless
|
|
pH (saturated solution in water)
|
3.6 - 4.6
|
|
Chloride (Cl)
|
Max 0.0005%
|
|
Phosphate (PO4)
|
Max 0.0005%
|
|
Sulphate (SO4)
|
Max 0.0005%
|
|
Heavy metal (as Pb)
|
Max 0.0005%
|
|
Arsenic (As)
|
Max 0.00005%
|
|
Sodium (Na)
|
Max 0.005%
|
|
UV absorbance 1 M in water
|
|
|
Wavelength
|
Max. Absorbance
|
|
260 nm
|
0.015
|
|
280 nm
|
0.010
|