User:Rachel Gill/Notebook/Chem 681 2018/2018/11/14

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Objective

Make more beads PVA/clay, measure PVA/clay dye adsorption UV-Vis, make Na montmorillonite dye uptake with MG, create stock solutions for Pb and Hg metals for ICP analysis.

Lab Protocol

Na Montmorillonite uptake

  • use ~5 mg Na montmorillonite
  • 4.5 g of MG dye
  • concentrations to aim for for MG 28, 50, 75, and 100 ppm.

Data

Na Montmorillonite MG uptake

  • actual concentrations of MG used 29.3, 50, 73, and 106 ppm
  • MG conc. 29.3 ppm, Na mont 0.00422 g, MG used 4.53744 g
  • MG conc. 29.3 ppm, Na mont 0.00532 g, MG used 4.50660 g
  • MG conc. 50 ppm, Na mont 0.00353 g, MG used 4.50054 g
  • MG conc. 50 ppm, Na mont 0.00511 g, MG used 4.53660 g
  • MG conc. 73 ppm, Na mont 0.00297 g, MG used 4.50527 g
  • MG conc. 73 ppm, Na mont 0.00223 g, MG used 4.61800 g
  • Mg conc. 106 ppm, Na mont 0.00409 g, MG used 4.52275 g
  • MG conc. 106 ppm, Na mont 0.00523 g, MG used 4.50385 g

Notes