User:Madeleine Y. Bee/Notebook/CHEM-581 Experimental Chemistry/2014/09/03

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September 3, 2014

Procedures

Completing Film Synthesis

Continued from Wednesday, 8/29/2014<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)

UV-vis Measurements

  • Take UV Vis spectra for Malachite green at the following concentrations: 0ppm, 0.20ppm, 0.50ppm, 1.1ppm, 1.4ppm, 1.7ppm, and 2.0ppm
  • Construct calibration curve for each of the two absorbance maximums

Equilibrium Measurements

  • Dilute all solutions to 10 mL 1.5 ppm & transfer to glass test tube (3 mL needed for absorbance measurements)
    1. 2.0 ppm to 1.5 ppm
      • 7.5 mL 2.0 ppm in 10 mL H2O
    2. 8.0ppm to 1.5 ppm
      • 1.88 mL 8.0 ppm in 10 mL H2O
    3. 80.0 ppm to 1.5 ppm
      • 187.5 uL 80.0 ppm in 10 mL H2O
    4. 200.0 ppm to 1.5 ppm
      • 75 uL 200.0 ppm in 10 mL H2O
  • Determine the amount of Malachite green absorbed into a film
  • Determine the equilibrium of free Malachite green vs bound malachite green with I.C.E. table
  • Determine the mass of malachite green absorbed per mass of film

FTIR Measurements

Powder X-ray Diffraction Measurements

Differential Scanning Calorimetry Measurments


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