Bismuth Subgallate Powder

Formula:BiC7H5O6 . xH2O where x = 1-2
Appearance:Yellow powder
Bismuth Oxide (dry basis): 52.0-57.0%
Loss on Drying(105° C): 7.0% max.
Lead: 20 ppm max.
Arsenic: 7.5 ppm max.
Alkalis & Alkaline Earths: 0.5% max.
Free Gallic Acid: 0.5% max.
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