|
Appearance
|
White to off white powder
|
|
Assay
|
98.5 - 101%
|
|
Specific optical rotation ([α]20/D; 20 g/L in 1 mol/L HCl; on dried substance)
|
-218 to -224°
|
|
Chloride (Cl)
|
Max 0.05%
|
|
Sulphate (SO4)
|
Max 0.03%
|
|
Ammonium (NH4)
|
Max 0.02%
|
|
Ninhydrin positive substance
|
Max 0.2%
|
|
Loss on drying (at 110°C)
|
Max 0.5%
|
|
Sulphated ash
|
Max 0.1%
|
|
Iron (Fe)
|
Max 0.002%
|
|
Lead (Pb)
|
Max 0.001%
|