User:Michael S. Bible/Notebook/CHEM498 POMs/2015/10/26

From OpenWetWare

Jump to: navigation, search
Project name Main project page
Previous entry      Next entry

Objective

Adopting the protocol for the synthesis of [CeK(H2O)12][Ce(H2O)6]2[(H2O)4CeBW11O39H]2·20H2O, a synthesis was performed using PrCl3·6H2O rather than Ce(NO3)3.

Protocol

  • Dissolved 0.711g (~2 mmol) PrCl3·6H2Oin 20 mL of DI water.
  • Dissolved 1.602g (~0.5 mmol) K8[BW11O39H]·13H2O in 40 mL of DI water.
  • Added the second solution to the first solution and adjusted the pH to 3.5 using 1M NaOH under stirring.
  • Refluxed solution for 2 hours at 80°C.
  • The resulting solution was saved for filtration on Thursday

Completion of Filtration of Product from 10/23

  • The Filtration begun on 10/23 was completed and the product was moved to a scintillation vial. (The mass of the yellow product obtained was 2.3905)
  • The dark yellow filtrate was left covered in the fume hood at ambient temperatures.

Results

The Praseodymium solution was much clearer than the Cerium solution and there was clearly precipitate.



Personal tools