|
Appearance
|
Colorless crystals or white crystalline powder
|
|
Assay
|
Min 99.5%
|
|
DNAase/RNAase/Proteases
|
Not detectable
|
|
pH (5% solution in water; 20°C)
|
About 4.5
|
|
Chloride (Cl)
|
Max 0.0005%
|
|
Sulphate (SO4)
|
Max 0.003%
|
|
Calcium (Ca)
|
Max 0.005%
|
|
Iron (Fe)
|
Max 0.0005%
|
|
Potassium (K)
|
Max 0.005%
|
|
Nickel (Ni)
|
Max 0.001%
|
|
Lead (Pb)
|
Max 0.0005%
|