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ITEM | SPECIFICATION | ANALYSIS RESULT | ||
Excellence in goods | First grade | |||
Appearance | Dark purple, metallic luster granular, needle-like crystal or quicksand | OK | ||
Purity (KMnO4) | 99.40% min | 99.20% min | 99.53% | |
Water-insoluble matter (%) | 0.12 max | 0.15 max | 0.04 | |
Chloride (Cl) content / (%) | 0.01 max | 0.02 max | <0.004 | |
Sulfate (SO4) content / (%) | 0.05 max | 0.10 max | <0.03 | |
Moisture assay (%) | 0.5 max | 0.5 max | 0.03 | |



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