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

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*Polymer Film
*Polymer Film
** g PVA (~1g)
** g PVA (~1g)
===Exchanging Sodium in NaMT for Organic Cation===
Assuming 92 miliequivalents (meq) of Na+ per 100g of montmorillonite.<br.>
# Add 1.1g of Sodium Montmorillonite (NaMT) to a scintillation vial containing 20mL of 50:50 HPLC grade water:ethanol.
# Determine the amount of cation to add if using either tributylhexadecylphosphonium bromide or (1-hexadecyl)triphenylphosphonium bromide to exchange 100% of the Na from the clay
# Add this amount of phosphonium ion to the clay solution
# 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




Revision as of 15:33, 9 September 2014

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September 9, 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

Beginning New Film Synthesis

Procedure detailed by Dr Hartings

  • Polymer-10% Clay Film
    • g PVA and g sodium montmorillonite (~1g PVA and ~.1g NaM)
  • Polymer Film
    • g PVA (~1g)

Exchanging Sodium in NaMT for Organic Cation

Assuming 92 miliequivalents (meq) of Na+ per 100g of montmorillonite.<br.>

  1. Add 1.1g of Sodium Montmorillonite (NaMT) to a scintillation vial containing 20mL of 50:50 HPLC grade water:ethanol.
  2. Determine the amount of cation to add if using either tributylhexadecylphosphonium bromide or (1-hexadecyl)triphenylphosphonium bromide to exchange 100% of the Na from the clay
  3. Add this amount of phosphonium ion to the clay solution
  4. Cap the vial
  5. Stir for 1 week
  6. Vacuum filter using 0.2uM nylon filter paper
  7. Dry in oven at 90C overnight
  8. Grind with a mortar and pestle
  9. Store in a dessicator



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