|
Appearance
|
White crystalline powder
|
|
Assay
|
Min 99%
|
|
Melting point
|
174 - 178 deg C
|
|
Insoluble matter in water
|
Max 0.005%
|
|
Sulphated ash
|
Max 0.05%
|
|
Sulphate (SO4)
|
Max 0.01%
|
|
Iron (Fe)
|
Max 0.0005%
|
|
Loss on drying (at 105°C)
|
Max 0.5%
|
|
Sensitivity for Bismuth
|
Passes test
|