Expt06_SomeAspectsOfCorrosion - Date Performed Experiment...

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Experiment No. 6 Some Aspects of Corrosion I. Objectives: >to observe the corrosion of iron >to incorporate more oxidizable metal in combination with iron to prevent corrosion >to incorporate less oxidizable metal in combination with iron to enhance rate of corrosion II. Diagrams/ Figures for special set-ups: III. Outline/Schematic Diagram of procedure: APPARATUS AND MATERIALS: Colorless gelatin 250-mL beakers Zinc metal Copper wire 4 clean 1 ½ inch (ungalvanized) clean iron nails 0.1 K 3 Fe(CN) 6 1% phenolphthalein Distilled water Pliers Sandpaper 2 small jars PROCEDURE: To prepare the gelatin solution: Boil about 250-mL distilled H 2 O. Stir into the boiling water ½ bar of colorless gelatin. Heat the mixture with continuous stirring until the gelatin is well dispersed. Set aside until the temperature of the solution reaches 60ºC. Add 20 drops of K 3 Fe(CN) 6 into the solution. Stir thoroughly. Add 1.0 mL of 1% phenolphthalein into the cooled unsolidified solution before pouring into
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This note was uploaded on 08/11/2008 for the course CHEM 16 taught by Professor Siao during the Fall '07 term at University of the Philippines Diliman.

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Expt06_SomeAspectsOfCorrosion - Date Performed Experiment...

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