Daniel D. Clark. Convenient and Inexpensive Insulation for Fractional Distillation Columns.
. 2016; 4(3):49-51. doi: 10.12691/WJCE-4-3-1
laboratories and demonstrations, organic chemistry, separations, laboratory equipment, experiment, fractional distillation
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[1] | Weires, N. A., Johnston, A., Warner, D. L., McCormick, M. M., Hammond, K., McDougal, O. M., “Recycling of Waste Acetone by Fractional Distillation”, J. Chem. Educ. 88 (12), 1724-1726, December 2011. |
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[2] | Baum, E. W., Esteb, J. J., Wilson, A. M., “Waterless Condensers for the Teaching Laboratory: An Adaptation of Traditional Glassware”, J. Chem. Educ. 91 (7), 1087-1088, July 2014. |
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[3] | Robinson, J. M., Williams, D. L., “An Efficient ‘Brush’ Packing for Fractional Distillation”, J. Chem. Educ. 91 (3), 457-460, March 2014. |
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[4] | (a) Gilbert, J.C., Martin, S.F., Experimental Organic Chemistry: A Miniscale and Microscale Approach, 5th ed., Cengage Learning: Boston, MA, 2011. (b) Pavia, D.L., Lampman, G.M., Kriz, G.S., Engel, R.G., A Small Scale Approach to Organic Laboratory Techniques:, 3rd ed., Brooks/Cole: Belmont, CA, 2011. (c) Ault, A. Techniques and Experiments for Organic Chemistry, 6th ed., University Science Books: Sausalito, CA, 1998. (d) Landgrebe, J.A. Theory and Practice in the Organic Laboratory: with Microscale and Standard Scale Experiments, 5th ed., Thomson Brooks/Cole: Belmont, CA, 2005. (e) Fessenden, R.J., Fessenden, J.S.; Feist, P. Organic Laboratory Techniques, 3rd ed., Thomson Brooks/Cole: Belmont, CA, 2001. |
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[5] | Distillations were performed in an open fume hood with 25 mL of a 50% (v/v) methanol and 1-propanol mixture contained in a 100 mL round bottom flask and heated with a Powermite-controlled 100 mL Thermowell heating mantle as part of the distillation apparatus as referenced in Figure 1– except for the incorporation of a Vigreux column that was either left uncovered, insulated with tubular polyethylene foam, or insulated with a layer paper towels and aluminum foil, respectively. Each of these experiments employed similar Powermite control settings throughout the duration of the distillations to facilitate a slow rise of the condensate through the fractionating column and the collection of distillate at similar a pace during similar points of each separation (i.e. 3-5 sec per drop for the collection of methanol and 1.5-3 sec per drop for the collection of 1-propanol). |
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[6] | Material Safety Data Sheet [online] for Nomaco Construction Polyethylene Foam Pipe Insulation; Nomaco, Inc.: Zebulon, NC (USA), September 15, 2014. http://www.nomacoinsulation.com/pdf/msds/MSDS%20PE%20062911_002.pdf (accessed May 6, 2016). |
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