CHE656 Computer Applications for Chemical Engineering Practice Process Simulation with ASPEN PLUS Exercise Problems Version 2012 Prepared by Dr. Hong-ming Ku King Mongkut’s University of Technology Thonburi Chemical Engineering Department Chemical Engineering Practice School © May 2004-2012 – Use with Permission of the Author Only 1 Section 1 Elementary Modules‚ Mass Balances‚ and Degree of Freedom Analysis 2 1. Mass Balances and Constraints with Elementary Modules
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substitution reaction. Procedure: 1. Sodium Iodide in Acetone. Acetone‚ with a dielectric constant of 21‚ is a relatively nonpolar solvent that will readily dissolve sodium iodide. The iodide ion is an excellent nucleophile‚ and the nonpolar solvent‚ acetone‚ favors the Sn2 reactions; it does not favor ionization of the alkyl halide. The extent of reaction can be observed because sodium bromide and sodium chloride are not soluble in acetone and precipitate from solution if reaction occurs. 2. Ethanolic
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capillary Tube: Before using the capillary tube in an experiment using acetone‚ students are advised to clean the inside of the tube. Prepare a weak solution of detergent. Use the Hirschman pipette to fill the tube with the solution. Tapping the of side of the tube may be necessary if the solution is trapped and does not flow down. Turn the tube upside-down and shake. Empty the tube. Repeat steps 2 to 3 with acetone. The tube is now ready for student experiment. General Shut-down
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phytochemical and biological analysis of Paris polyphylla (PP). Crude Chloroform/Methanol (1:1) extraction performed on the rhizomes of Paris polyphylla collected from himalayan region of Nepal was followed by fractionaion process using petroleum ether and acetone for the separation of extract based on their polarity. The extract was run through Thin Layer Chromatography and the test confirmed the presence of polar and Non-polar compounds based on their mobility. Phytochemical screening was performed and presence
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The Effect of Solvent Exposure and Temperature on Beet Cell Membrane Integrity Introduction: • Cell membranes are vital to proper cellular function • Cell membranes consist of a lipid bilayer made up of phospholipids • Phospholipids are amphipathic molecules meaning they have a dual nature in that they show both hydrophilic (water-loving) and hydrophobic (water-fearing) properties • The amphipathic nature of phospholipids causes them to spontaneously form bilayers in water
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June 19‚ 2009. http://www.midi-inc.com/pdf/MSDS_Hexane.pdf (accessed Feb 12‚ 2012). Ethyl Acetate; MSDS No.141-78-6 [Online]; Sciencelab.com‚ Inc.: Houston‚ TX‚ Nov 01‚ 2010. http://www.sciencelab.com/msds.php?msdsId=9927165 (accessed Feb 12‚ 2012). Acetone; MSDS No. 67-64-1 [Online]; Millenia Production: Wichita‚ KS‚ March 26‚ 1996. http://www.phy.duke.edu/research/photon/qelectron/acetone_msds.pdf (accessed Feb 12‚ 2012). Methanol; MSDS No. 76-56-1 [Online]; Microbial ID: Newark‚ DE‚ May 05‚ 2011.
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Science Unit Code : UEME3213 Course : Unit Title : Heat and Mass Transfer Year/ Semester : Year 3/ Semester 2 Lecturer : Session : Experiment 2: Gaseous Diffusion Coefficient Objective To determine gas diffusion coefficient of acetone Introduction The knowledge of physical and chemical properties of certain materials is important because very often process engineering deal with the transformation and distribution of these materials in bulk. One such
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components with different volatilities * WATER AND ACETONE when the water H2O and acetone was heated‚ the acetone evaporated from the beaker and condensed to the test tube. The method used to separate the mixture is Distillation. Distillation is the process of separating liquid mixtures with components of varying degrees of volatility or significant differences in boiling point. The water and the acetone separated. The water and Acetone has different
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more ml of distilled water‚ swirl and decant again. Now add several ml of acetone (CAUTION Acetone is very flammable) to the copper. Swirl and allow to stand a few minutes and decant off the acetone. Repeat with a second portion of acetone. Discard the acetone in the organic Wastes beaker (in the fume hood). The acetone readily dissolves the water removes it. The acetone is easily removed by gentle heating since acetone
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made for this experiment. These tests includes Tollen’s test‚ Benedict’s Test‚ 2-4-dinitrophenylhydrazine and Schiff’s test. All the tests conduted yielded same results‚ that is‚ formalin and benzaldehyde are aldehyde-containing compounds while acetone is a ketone. On the other hand‚ effect of acid concentration on the addition of 2-4-dinitrophenylhydrazine yielded precipitate according to the concentration of the acids used. The 0.1M HCl‚ 0.1M acetic acid‚ 1.0M HCl yielded precipitate after 4 minutes
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