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Appearance
|
A white powder
|
|
Assay (acidimetric)
|
Min 99%
|
|
Specific optical rotation ([α]20/D; 100 g/L in 1 mol/L HCl; on dried substance)
|
+30.5 to +32.5 deg
|
|
Chloride (Cl)
|
Max 0.02%
|
|
Sulphate (SO4)
|
Max 0.03%
|
|
Heavy metal (as Pb)
|
Max 0.001%
|
|
Iron (Fe)
|
Max 0.001%
|
|
Ammonium (NH4)
|
Max 0.02%
|
|
Ninhydrin positive substance (TLC)
|
Max 0.5%
|
|
Sulphated ash (at 600°C)
|
Max 0.1%
|
|
Loss on drying (at 105°C)
|
Max 0.5%
|