Bismuth hydroxide ( Bi(OH)3 ) is not a fully characterised chemical compound. It is produced as white flakes when alkali is added to a solution of a bismuth salt and is usually described as bismuth oxide.hydrate or bismuth hydrate. Bismuth hydrate is a component used in milk of bismuth which is used in gastrointestinal disorders as a protective agent. Aqueous ammonia reacts with bismuth(III) ion to precipitate white bismuth hydroxide.
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Bismuth hydroxide Wikipedia(Text) CC BY-SA