User:Madeleine Y. Bee/Notebook/CHEM-581 Experimental Chemistry/2014/09/10

CHEM 581: Experimental Chemistry

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September 10, 2014 Procedures Completing Film Synthesis Continued from Wednesday, 9/3/2014<br.> Procedure detailed by Dr Hartings Stir in Sodium Sulfate, 1% HCl, and Sodium Bicarbonate solutions Exchanging Sodium in NaMT for Organic Cation Procedure detailed by Dr Hartings.<br.> Assuming 92 miliequivalents (meq) of Na+ per 100g of montmorillonite.<br.> Add 1.12g of Sodium Montmorillonite (NaMT) to a scintillation vial containing 20mL of 50:50 HPLC grade water:ethanol. (1.12 g NaMT)×(92×10-3 eq/100 g NaMT)×(507.65 g/mol tributylhexadecylphhosphonium bromide)=0.523 g tributylhexadecylphosphonium bromide Add 0.523g of tributylhexadecylphosphonium bromide to exchange 100% of the Na from the clay Cap the vial Stir for 1 week Vacuum filter using 0.2uM nylon filter paper Dry in oven at 90C overnight Grind with a mortar and pestle Store in a dessicator