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Appearance
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A heavy white crystalline powder
|
|
Assay (complexometric)
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99-102%
|
|
Chloride (Cl)
|
Max 0.002%
|
|
Iron (Fe)
|
Max 0.001%
|
|
Copper (Cu)
|
Max 0.002%
|
|
Silver (Ag)
|
Max 0.001%
|
|
Zinc (Zn)
|
Max 0.005%
|
|
Substance not precipitated by H2S (as SO4)
|
Max 0.2%
|
|
Alkali & alkaline earth metals
|
Passes test
|