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Bismuth subcarbonate

bismutite | NFPA-H = 1 | NFPA-F = 0 | NFPA-R = 0 Bismuth subcarbonate (BiO)2CO3, sometimes written Bi2O2(CO3) is a chemical compound of bismuth containing both oxide and carbonate anions. Bismuth is in the +3 oxidation state. Bismuth subcarbonate occurs naturally as the mineral bismutite. Its structure{{cite journal

Uses

It is highly radiopaque and for example is used as a filler in radiopaque catheters which can be seen by x-ray. In modern medicine, bismuth subcarbonate has been made into nanotube arrays that exhibit antibacterial properties.

Safety

Bismuth subcarbonate may be harmful if swallowed. It may irritate the respiratory and gastrointestinal tract.

Synthesis

Bismuth subcarbonate can be attained from the reaction between bismuth nanoparticles and the atmospheric carbon dioxide (CO2) dissolved in water.

Structure

Bismuth subcarbonate has a structure with a tetragonal unit cell. Layers of (BiO)n positively charged, and carbonate anion (CO) are surrounding both sides of the (BiO) layer to compensate the charge. Usually, the (BiO)n layer grows perpendicular to the b axis.

References

References

  1. [http://www.freepatentsonline.com/5300048.html Flexible, highly radiopaque plastic material catheter - Patent 5300048]
  2. [http://www.skylighter.com/fireworks/how_to_make/bismuth_subcarbonate_dragon_eggs.asp How To Make Cheaper Crackling Firework Stars (Dragon Eggs) With Bismuth Subcarbonate] {{webarchive. link. (June 9, 2007)
  3. [https://books.google.com/books?id=RVG9zNj8PsMC&dq=parke+davis+%26+co+%22milk+of+bismuth%22&pg=RA1-PA436 Park & Davis Co catalog entry for milk of bismuth]
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bismuth-compounds carbonates
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