User:Alicia Rasines Mazo/Notebook/CHEM-581 Experimental Chemistry I/2014/09/24

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Tasks for September 24

  • To continue processing films from last week
  • To make new films with exfoliated clay
  • To run AA on the arsenic samples.

Preparation of 10% wt new exfoliated clay films

  • 1.0042 g 22,000 PVA, 0.1101 g of of exfoliated tributylhexadecylphosphonium bromide (THP Br) and 7 mL of distilled water were used to make up a 10% wt PVA-exfoliated THP Br film. Note this clay was prepared by Jame's group.
  • 1.0028 g 22,000 PVA, 0.1107 g of exfoliated tributylhexadecylphosphonium bromide (THP Br) and 7 mL of distilled water were used to make up a 10% wt PVA-exfoliated THP Br film.
  • Heated at apprx. 80ºC with gentle stirring until all crystals were dissolved
  • Added 0.5 mL glutaraldehyde under hood
  • Stirred for 3 min to ensure homogeneity
  • Poured into teflon dish and allowed to dry

Completing synthesis of films

  • Soaked in sodium sulfate,


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