User:Madeleine Y. Bee/Notebook/CHEM-582 Experimental Chemistry II/2015/02/11: Difference between revisions
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===Procedure=== | ===Procedure=== | ||
Procedure adapted from [http://onlinelibrary.wiley.com/doi/10.1002/bit.260390411/abstract | Kuo-Ying Amanda Wu and Keith D. Wisecarver (1992)]<br.> | |||
# Prepare an aqueous solution of 13% PVA and 0.02% sodium alginate at 60°C (Stir plate on 3rd setting: ~68°C) | |||
#* 1 gram of PVA and 0.16 g of sodium alginate in 7 mL of water (12.5% PVA and ~0.02% alginate) | |||
##* Add alginate '''while stirring''' PVA-water solution | |||
#* ~0.1 g of nanocomposite should be added to this mixture where applicable | |||
# Cool dissolved and mixed solution to 35°C | |||
# Prepare 210 mL of saturated citric acid with 4% calcium chloride | |||
## Add 8.4 grams (4%) of calcium chloride to 210 mL of water | |||
## Add citric acid to saturation (32 g citric acid) | |||
##* 14.7g/100mL > 30.87 g/210 for solubility comparable to boric acid | |||
# Add the PVA-Alg-Nanocomposite mixture drop-wise (by syringe) to the gently stirring (stir plate 3) citric acid-calcium chloride solution using a Pasteur pipette | |||
# Stir for 2 hrs to allow solidification | |||
# Rinse with water to remove excess reactants | |||
====Measurements==== | ====Measurements==== | ||
*PVA-Alg-AC | |||
**PVA: | |||
**Alg: | |||
**AC: | |||
**Citric acid: | |||
**CaCl2 | |||
*PVA-Alg-Zeolite | |||
**PVA: | |||
**Alg: | |||
**Zeolite: | |||
**Citric acid: | |||
**CaCl2 | |||
====Notes==== | ====Notes==== |
Revision as of 20:12, 10 February 2015
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February 11, 2015
ProcedureProcedure adapted from | Kuo-Ying Amanda Wu and Keith D. Wisecarver (1992)<br.>
Measurements
Notes |