User:Mary Mendoza/Notebook/CHEM 581: Experimental Chemistry I/2014/11/04: Difference between revisions

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==Synthesis of PVA-clay Beads==
==Synthesis of PVA-clay Beads==
* 0.51520 g PVA + 0.05154 g NaMT in 6 mL 10% HCl.
* 0.51520 g PVA + 0.05154 g NaMT in 6 mL 10% HCl.
*  
* 1 mL of 0.8% glutaraldehyde was added to 20 mL of ethyl acetate. The mixture was stirred at maximum speed on a stirrer.
* The PVA-clay-HCl solution was added to the ethyl acetate mixture in a drop wise manner.
* Depending on the conditions, microbeads should form between 2-3 minutes. As soon as the beads are visible, IMMEDIATELY ADD 25 mL of 0.2 M NaHCO<sub>3</sub>.
   
   


Revision as of 17:19, 4 November 2014

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Suspension of Synthesized Beads in Malachite Green

  • Beads made from last Friday were suspended in 1 mL 80 ppm malachite green.
80 ppm Malachite Green
PVA-clay beads
PVA-clay beads with 80 ppm Malachite Green at initial addition
PVA-clay beads with 80 ppm Malachite Green after 15 minutes

Synthesis of PVA-clay Beads

  • 0.51520 g PVA + 0.05154 g NaMT in 6 mL 10% HCl.
  • 1 mL of 0.8% glutaraldehyde was added to 20 mL of ethyl acetate. The mixture was stirred at maximum speed on a stirrer.
  • The PVA-clay-HCl solution was added to the ethyl acetate mixture in a drop wise manner.
  • Depending on the conditions, microbeads should form between 2-3 minutes. As soon as the beads are visible, IMMEDIATELY ADD 25 mL of 0.2 M NaHCO3.



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