User:Samiye Yaman/Notebook/Lab 581/2012/09/12

Experimental Chemistry

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Objective Description Part A (Preparing a film) Preparing a film (0.5 g of MW:22000 + 5ml of water @70C) After it is cooled down, add 0.25ml of gluteraldehyde (KEEP EVERYTHING UNDER THE HOOD) Pour and leave it in the teflon plate to dry (UNDER THE HOOD) Part B (Prepare 100% exchanged Na.MT(clay)) Theoretical Values (DMHDIBr was the surfactant used) (0.92 meq v/g)* (2g clay) * (1eqv/ 1000meqv) * (1 mol surfactant/ 1eqv ) * (401.47 g/ 1 mol of surfactant) =0.7387 g of surfactant Add 25 ml of water, 25 ml of ethanol, 2.004 g of clay and 0.7390 g of surfactant were placed in to a 100ml beaker. The beaker was placed on a hot plate but only stirring feature was used. The beaker left to stay on hot plate for a week. Part C (50% exchanged Na.MT) Theoretical Values (DMHDIBr was the surfactant used) 0.7387 g/2 = 0.3695 g of surfactant Add 25 ml of water, 25 ml of ethanol, 2.004 g of clay and 0.3690 g of surfactant were placed in to a 100ml beaker. The beaker was placed on a hot plate but only stirring feature was used. The beaker left to stay on hot plate for a week. Add 25 ml of water, 25 ml of ethanol, 2.004 g of clay were placed in to a 100ml beaker. The beaker was placed on a hot plate but only stirring feature was used. The beaker left to stay on hot plate for a week. Part D (Fe3O4) coated NaMT 40 ml of water, 2 g of clay 1.04 g of Fe3O4 and 0.53 g of FeSO4 were placed in to a 100 ml beaker. 2.67 f of NaOH was dissolved completely with 10 ml of water and added to the previously made solution drop by drop. The solution was heated at 40 C and kept on stirring for 45 minutes. After the precipitates form, the solution filtered. The filter paper with the precipitants were placed under the hood for 2 days to dry completely. Data Powder has a magnetic property. 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.