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This study investigated the formation of bismuth oxide (Bi 2 O 3 ) crystals by an aqueous precipitation method using bismuth nitrate pentahydrate [Bi(NO 3 ) 3 ·5H 2 O] and NaOH. The phase evolution during NaOH titration was also studied. Basic bismuth nitrates were formed during NaOH titration. However, these nitrates dissolved and recrystallized into Bi ...
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