|
Appearance
|
Colorless Crystals.
|
|
Assay (on anhydrous basis)
|
Min 99.9%
|
|
Alcohol insoluble matter
|
Passes test
|
|
Clarity of solution
|
Passes ACS test
|
|
Chloride (Cl)
|
Max 0.0005%
|
|
Sulphate (SO4)
|
Max 0.002%
|
|
Alkalies and other metals
|
Max 0.05%
|
|
Bismuth (Bi)
|
Max 0.0005%
|
|
Copper (Cu)
|
Max 0.0002%
|
|
Iron (Fe)
|
Max 0.0002%
|
|
Sodium (Na)
|
Max 0.002%
|
|
Lead (Pb)
|
Max 0.001%
|
|
Free acid
|
Passes test
|
|
Substance not precipitated by HCl
|
Max 0.01%
|