User:Elizabeth Ghias/Notebook/Experimental Chemistry/2012/12/03

Current revision

Experimental Chemistry

To continue the porphyrin film salt tests

Remove the porphyrin film from the sodium sulfate solution.
Cut the film to the size of a cuvette
Measure the thickness of the film (2.6 mm)
Take a UV-Vis of the film.
Place the film into 2% wt H₂SO₄ solution until it turns green
Remove the film from the acid solution and place it in the previously prepared aluminum sulfate solution.

After sitting in the sodium sulfate the whole weekend, the porphyrin film had a light brown color.
The porphyrin film was sort of falling apart, broke into 2 pieces one large and one small, we used the larger one
High baseline occurs because the crosslinking makes the film not completely transparent

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 ==Objective==
+To continue the porphyrin film salt tests
 ==Description==
+# Remove the porphyrin film from the sodium sulfate solution.
+# Cut the film to the size of a cuvette
+# Measure the thickness of the film (2.6 mm)
+# Take a UV-Vis of the film.
+# Place the film into 2% wt H<sub>2</sub>SO<sub>4</sub> solution until it turns green
+# Remove the film from the acid solution and place it in the previously prepared aluminum sulfate solution.
 ==Data==
@@ Line 17: / Line 27: @@
 ==Notes==
-This area is for any observations or conclusions that you would like to note.
-Use categories like tags. Change the "Course" category to the one corresponding to your course. The "Miscellaneous" tag can be used for particular experiments, as instructed by your professor. Please be sure to change or delete this tag as required so that the categories remain well organized.
-[[Category:Course]]
-[[Category:Miscellaneous]]
+* After sitting in the sodium sulfate the whole weekend, the porphyrin film had a light brown color.
+* The porphyrin film was sort of falling apart, broke into 2 pieces one large and one small, we used the larger one
+* High baseline occurs because the crosslinking makes the film not completely transparent