Characterization Methods: The final product‚ cyclododecanone‚ was analyzed by infrared (IR) spectroscopy to confirm the oxidation of the hydroxyl group to a carbonyl group. In IR spectroscopy‚ the presence of functional groups can be identified by their unique vibrational frequencies. There also were some other characterization tests such as the yield and the melting point. Procedure: The experimental
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Experiment 1: TLC Analysis of Analgesic Drugs 1/23/2011 Purpose: The goal of this experiment is to test our knowledge and understanding of TLC analysis by having us do a TLC analysis of analgesics to figure out their main chemical components. Calculations: 1.) Rf = Distance spot traveled/ distance solvent traveled Results: Table 1: TLC Analysis Analgesic Drugs | Rf Value | Acetaminophen | 0.323 | Aspirin | 0.597 | Caffeine | 0.081 | Unknown 154 (Plate 1) | 0.081‚ 0.306‚ 0.597
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and hydrogen groups from the carbons. Concentrated phosphoric acid was used as a catalyst to help move the reaction towards the products motioned above. To determine the successfulness of the experiment and the amount of product(s) recovered‚ IR spectroscopy‚ Gas Chromatography and percent yield calculations were used. Equations and Structures 6. References 1. "18. Dehydration of 2- Methylcyclohexanol." Organic Chemistry Lab 2040L. XU Chemistry‚ n.d. Web. 12 Feb. 2013.
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This low percent yield is most likely due to error in the experiment. The potassium permanganate test was positive for the presence of a double bond in the product as brown precipitate formed along with the discoloration of the solution. An IR spectroscopy of the product was also performed. Results of the IR absorptions of this experiment were compared to the IR absorptions of standard functional groups as identified by the University of Puget Sound. Three main absorption bands were formed at 3373
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MICRO-RAMAN ANALYSIS OF EARLY CHRISTIAN FRESCOES IN EGYPT Hussein H. Marey Mahmoud Laboratory of Mural Paintings Conservation‚ Department of Conservation‚ Faculty of Archaeology‚ Cairo University‚ P.O. 12613 Giza‚ Egypt‚ marai79@hotmail.com ABSTRACT The early Christian cemetery in Egypt is located at Kharga Oasis in the western desert. The cemetery consists of 263 mud-brick chapels dating back to the 4th century AD. In the present study‚ micro-Raman analysis was used to study micro samples from
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is widely used in the Philippines as herbal medicine and is recognized by the Philippine Department of Health for its antiseptic property. Bayabas or guava fruit is known for being rich in vitamin C and vitamin A. Bayabas leaves and fruits contain eugenol‚ tannin‚ saponins‚ amydalin‚ phenolic acids‚ malic acid‚ ash‚ aldehydes‚ catequinic components and flavonoids. Bayabas or guava is used in herbal medicine as antiseptic‚ anti-inflammatory‚ anti-spasmodic‚ antioxidant hepatoprotective‚ anti-allergy
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constituents of the more common essential oils. Name Part of plant used Leaf Botanical name Important constituents Uses Lemongrass and citronella Eucalyptus Cymbopogon spp Citral Citronella Terpenes Cineale Citronella Terpenes Eugenol Eugenol Terpenes Linalol Sanatols Myristicin Benzaldehyde Linalol Terpenes Perfumery Disinfectant Leaf Eucalyptus globulus Eucalyptus citriodora Eucalyptus dives Cinnamomum zeylanicum Eugenia caryophyllus Pinus spp Cinnamon leaf Clove Turpentine
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law with respect to bleach and blue dye‚ a series of graphic and algebraic manipulations were done on the data obtained in the kinetic trace experiment in order to determine the different components that made up the rate law. Using absorbance spectroscopy to monitor concentration over time‚ rate order of the dye was found to be 1st order through the integrated rate law and through the proportionality method; the order of the bleach was also determined to be 1st order. Using this information‚ the
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electromagnet. Since then‚ the splitting of energy levels proportional to an external magnetic field has been called the "Zeeman effect". The "Zeeman resonance effect" causes magnetic resonances which are classified under radio frequency spectroscopy (rf spectroscopy). In these resonances‚ the transitions between two branches of a single energy level split in an external magnetic field are measured in the megahertz and gigahertz range. In 1944‚ Jevgeni Konstantinovitch Savoiski discovered electron
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the starting material. The structural property of the material was studied by X-ray diffraction (XRD). The functional groups present in the material were identified using Fourier Transform Infra-Red (FTIR) Spectroscopy. The thermal behaviour was analyzed by using TG-DSC studies. UV-Vis Spectroscopy and Photoluminescence studies were taken to analyze the optical nature of the material. 1. INTRODUCTION Dielectrics are insulating materials that exhibit the property of electrical polarization
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