|
Appearance
|
White powder
|
|
Assay
|
Min 97%
|
|
Solubility (0.1 M in 1 M NaOH; 20°C)
|
Clear
|
|
pK (at 20°C)
|
7.85
|
|
Chloride (Cl)
|
Max 0.2%
|
|
Copper (Cu)
|
Max 0.005%
|
|
Sulphate (SO4)
|
Max 0.05%
|
|
Iron (Fe)
|
Max 0.005%
|
|
Calcium (Ca)
|
Max 0.005%
|
|
Potassium (K)
|
Max 0.01%
|
|
Cadmium (Cd)
|
Max 0.005%
|
|
Sodium (Na)
|
Max 0.1%
|
|
Cobalt (Co)
|
Max 0.005%
|
|
Nickel (Ni)
|
Max 0.005%
|
|
Lead (Pb)
|
Max 0.005%
|
|
Zinc (Zn)
|
Max 0.005%
|