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| View Original: | Barium sulfate colloid from magnet solution.JPG (357x773) | |||
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| Keywords: Barium sulfate colloid from magnet solution.JPG en This solution of a magnet in hydrochloric acid made a colloid when reacted with magnesium sulfate showing that common black magnets contain minute amounts of toxic barium compounds own Chemicalinterest Barium sulfate Magnets | ||||
