Preparation of N‚N-Diethyl-m-toluamide (DEET) and its Identification by IR and NMR Spectroscopy Eim A. Chemist CHEM 304 July 10‚ 2005 INTRODUCTION N‚N-Diethyl-m-toluamide (DEET) is the active ingredient in many insect repellants.1 In this experiment‚ DEET will be prepared from m-toluic acid through the intermediate acid chloride and then identified by its IR and proton NMR spectra. The overall reaction is a series of two acyl substitutions and is shown in Scheme 1 below: [pic] Scheme
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Analytical Chemistry I 1 Course Outlines LU1 :Analytical Chemistry Overview LU2: Measurements and Data Treatment LU3: Stoichiometric Calculations LU4: General Concepts of Chemical Equilibrium LU5: Gravimetric Methods LU6: Acid-Base Equilibria LU7: Acid-base titrations LU8: Analytical Separations Course Assessment Laboratory reports (15%) Assignments (15%) MidTerm Examination (30%) Final Examination (40%) 3 References 1. Christian‚ G.D. (2003)
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MRI and functional MR spectroscopy‚ other imaging techniques are discussed briefly such as positron emission tomography (PET)‚ electroencephalography (EEG) ‚ magnetoencepholography (MEG)‚ and MR diffusion imaging. These functional brain imaging studies have demonstrated that dyslexia is a brain-based disorder and that serial imaging studies can be used to study the effect of treatment on functional brain activity. Functional Magnetic Resonance Imaging and Spectroscopy of the Brain: Application
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been presented. First the PH measurements‚ Dr. honey dew does not explain how the PH device was calibrated or if the blood sample was added or mixed with anything prior to the measuring of the pH (like water‚ etc.). In regards to the absorption spectroscopy‚ the method by which the concentration was obtained is questionable. Was the concentration known before the experiment began‚ or was it found based on a similarly known variable so the epsilon value could be known for Beer’s law. Additionally‚
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skills about photonics. That’s why‚ TUBITAK ( Turkish National Scientific and Technical Research Center) Materials Institute was very good place for me‚ so I started to do my training there in Electron Microscopy and XRD-Spectroscopy Laboratories. In TUBITAK I focused on spectroscopy techniques‚ photonics systems‚ photonic detection and characterization. Compulsory official training time was 1 month but I extended the time to 5 months for my self. My training result was (AA – in German System 1.0) excellent
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com/chromatography/gc>. (5) "IR Spectroscopy Tutorial." Organic Chemistry at CU Boulder. N.p.‚ n.d. Web. 3 May 2013. <http://orgchem.colorado.edu/Spectroscopy/irtutor/tutorial.html>. (6) "ScienceLab: Chemicals & Laboratory Equipment." ScienceLab: Chemicals & Laboratory Equipment. N.p.‚ n.d. Web. 3 May 2013. <http://sciencelab.com>. (7) "IR Chart." Organic Chemistry at CU Boulder. N.p.‚ n.d. Web. 2 May 2013. <http://orgchem.colorado.edu/Spectroscopy/specttutor/irchart.html>
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CHE 182 Chemistry in Art Fall 2013‚ CSB 222 Instructor: Professor Machczynski Email: machczym@newpaltz.edu Office Hours: CSB 217‚ T 1:00-5:00 pm Learning Outcomes By the end of this course‚ students will be able to: 1. Explain and predict the colors of objects by applying an understanding of how light interacts with matter. 2. Explain how chemical structure determines the properties of materials and apply this principle to optimally select and use a variety of artistic materials. 3. Delay their
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Cam-Ha Nguyen Abstract: Using hypochlorous acid to convert secondary alcohol called cyclododecanol to the corresponding ketone which is cyclododecanone by oxidation. Procedures: Gilbert‚ John and Stephen F. Martin. Experiment Organic Chemistry: A Miniscale & Microscale Approach. Belmont‚ CA: Thomson Brooks/Cole‚ 2010. 537-547. Print. Data/ Results: Synthesis of cyclododecanone: Cyclododecanol | 0.2691 (g) | Sodium hypochloride | 2.300 (ml); positive for 1 time test (purple/black)
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F. & Schaafsma‚ G.J. (1998). Probiotic. International Journal of Food Microbiology‚ 39‚ 237–238. Helm‚ D. Labischinski‚ H. Schallehn‚ G. & Naumann‚ D. (1991). Classification and identification of bacteria by Fourier transform infrared spectroscopy. Journal of General Microbiology‚ 137‚ 69–79. Ilium‚ L.1998. Chitosan and its use as a pharmaceutical excipient. Pharmaceutical Research‚ 15‚ 1326–1331. Jankowski‚ T.‚ Zielinska‚ M.‚ and Wysakowska‚ A (1997) Kailasapathy‚ K.‚ and Chin‚ J. (2000)
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The discipline of archaeology is by no means a simple nor singular study of the past. Due to the wide range of evidence within the archaeological record‚ from organic to inorganic‚ many different methods and approaches are taken in order to deal with the wide spectrum of differing evidence. Nevertheless‚ the study of pottery is without doubt one of the most important tasks taken on by any archaeologist. A great wealth of information can be gained from the study of pottery‚ despite its inanimate state
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