User:Elizabeth Ghias/Notebook/Experimental Chemistry/2012/10/22: Difference between revisions
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# Leave the film in the apparatus until Wednesday. | # Leave the film in the apparatus until Wednesday. | ||
# On Wednesday, measure the conductivity one final time and then remove the film from the apparatus. | # On Wednesday, measure the conductivity one final time and then remove the film from the apparatus. | ||
<u>Porphyrin Film Crosslinking</u> | |||
* The exact amounts of glutaraldehyde fixant, HCl, and sodium bicarbonate solutions were recorded. A sample of the solutions were saved before and after crosslinking for tests with UV-Vis. | |||
# Allow the PVOH film containing glutaraldehyde to dry completely. | |||
# Prepare a solution of 100 mL H<sub>2</sub>O, 2 mL concentrated H<sub>2</sub>SO<sub>4</sub>, and 20 g Na<sub>2</sub>SO<sub>4</sub> in a 150 mL beaker. (solution is referred to as glutaraldehyde fixant) | |||
# Place stir bar in beaker and a Buchner funnel top (cap) over the stir bar | |||
# Heat solution to 70°C (temperature on hotplate should be about 160) | |||
# Place film in solution for one hour. | |||
# Prepare 100 mL of a 1% HCl solution in a 150 mL beaker. Place a stir bar and an inverted buchner funnel into beaker. | |||
# Heat HCl solution to 70°C | |||
# Remove film from glutaraldehyde fixant and rinse with distilled water. | |||
# Place film into HCl solution for 30 minutes. | |||
# Prepare 0.2 M sodium bicarbonate solution. (1.68 g in 100 mL) | |||
# After 30 minutes, remove the film from the HCl solution and place into the sodium bicarbonate solution (at room temperature) for about 15 minutes. | |||
# Use tweezers to remove the film from the sodium bicarbonate solution. | |||
# Rinse film with deionized water and place in a beaker with distilled water until it is used. | |||
* 100 mL of glutaraldehyde fixant, 1 mL HCl in 100 mL water, and 1.6817 g sodium bicarbonate in 100 mL water were used. | |||
<u>Glutaraldehyde Film Preparation</u> | |||
Revision as of 14:18, 26 November 2012
Experimental Chemistry | <html><img src="/images/9/94/Report.png" border="0" /></html> Main project page <html><img src="/images/c/c3/Resultset_previous.png" border="0" /></html>Previous entry<html> </html>Next entry<html><img src="/images/5/5c/Resultset_next.png" border="0" /></html> |
ObjectiveTo conduct ion conductivity tests on the 100% CEC clay, to make a new 1 g glutaraldehyde/PVOH film, to crosslink the porphyrin film, and to conduct UV-Vis tests on the copper solution DescriptionIon Conductivity Test
DataIon Conductivity
Notes
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