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

Experimental Chemistry

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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 H2SO4 solution until it turns green Remove the film from the acid solution and place it in the previously prepared aluminum sulfate solution. Data Add data and results here... Notes 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