Pepto bismol (bismuth subsalicylate) is use to treat stomach discomforts.
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Ever hear of Pepto Bismal? The main ingredient contains bismuth.
Pepto-Bismol is made with bismuth subsalicylate, which can react with sulfur compounds present in contaminated water to form bismuth sulfide. This chemical reaction causes the mixture to turn black.
It is used in Pepto bismol, and is heavier than lead. It also has a half-life of over a billion times as long as the ESTIMATED AGE OF THE UNIVERSE.
One possible poison that can turn your tongue black is bismuth subsalicylate, commonly found in medications like Pepto-Bismol. This discoloration is temporary and considered harmless. If you suspect poisoning or experience any severe symptoms, seek medical help immediately.
Bismuth is a metal. It is a post-transition metal and is the most diamagnetic element, meaning it is a poor conductor of electricity and is typically used in cosmetics and medicines.