User:Michael S. Bible/Notebook/CHEM498 POMs/2015/10/19

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Complete synthesis precursor molecule K8[BW11O39H]·13H2O


  • The precipitate from the solution produced on 10/15 was removed by vacuum filtration and discarded.
  • 50 g of KCl was added to the solution in order to precipitate out the desired potassium salt.
  • The precipitate was collected by vacuum filtration and dissolved in 1 L of lukewarm DI water.
  • The insoluble portion was eliminated by vacuum filtration.
  • The potassium salt was precipitated again by addition of another 50 g of KCl.
  • The precipitate was isolated and collected using vacuum filtration.


The mass of the product isolated was 25.94 g. This quantity is in line with the literature which indicates and expected yield of approximately 25%.