FormMicrocrystalline powder or powder
Assay from Supplier's CofA≥98.5% to ≤101.5% [UK sourced material]
Assay from Supplier's CofA64.5 ± 0.5% Ag w/w [US sourced material]
CommentMaterial sourced either in UK or USA
CommentMay contain trace amount of fine black particles from the manufacturing process
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