|
Appearance
|
White or yellowish white powder
|
|
Assay (as Bi)
|
80-82%
|
|
Insoluble matter in HNO3
|
Max 0.05%
|
|
Loss on drying (at 105°C)
|
Max 1.0%
|
|
Chloride (Cl)
|
Max 0.05%
|
|
Nitrate (NO3)
|
Max 0.4%
|
|
Sulphate (SO4)
|
Max 0.1%
|
|
Alkali & alkaline earth metals
|
Max 1.0%
|
|
Silver (Ag)
|
Max 0.0025%
|
|
Arsenic (As)
|
Max 0.0005%
|
|
Copper (Cu)
|
Max 0.005%
|
|
Iron (Fe)
|
Max 0.01%
|
|
Lead (Pb)
|
Max 0.002%
|