The mixture comprises 21 PAHs (Acenaphthene‚ Acenaphthylene‚ Anthracene‚ Benz[a]anthracene‚ Benzo[b]fluoranthene‚ Benzo[k]fluoranthene‚ Benzo[ghi]perylene‚ Benzo[a]pyrene‚ Chrysene‚ Dibenz[a‚h]anthracene‚ Dibenzo[a‚e]pyrene‚ 7‚12-Dimethylbenz[a]anthracene‚ Fluoranthene‚ Fluorene‚ Indeno[1‚2‚3-cd]pyrene‚ 3-Methylcholanthrene‚ 2-Methylnaphthalene‚ Naphthalene‚ Perylene‚ Phenanthrene‚ Pyrene)‚ 11 benzene derivatives
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The experimental melting point range of the desired alkene product‚ trans-9-(2-phenylethenyl) anthracene‚ was found to be 132-134 ˚C‚ in comparison to the literature value melting point range of 130-132˚C‚1 it was slightly higher than expected. Overall‚ the experimental melting point range varied from the initial melting point temperature and maximum melting point temperature by 2˚C. As the experimental melting point had a small range of temperature variance and was above that of the literature value
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A. Goal and Purpose: Session 1: In this lab‚ we will achieve a simple Friedel-Crafts alkylation of anthracene. The choice of anthracene as an aromatic substrate stems from two considerations. First‚ there is a question of regioselectivity. Second‚ anthracene and its derivatives are highly visible under UV light. Session 2: In this lab‚ we will complete a partial conversion of 9-acetylanthracene using m-chloroperoxybenzoic acid (mCPBA). We will also determine by NMR‚ the regiochemistry of the
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1. RADIOLOGY REPORT LOCATION: Hospital‚ Outpatient PATIENT: Dan Diel ORDERING PHYSICIAN: Daniel G. Olanka‚ MD ATTENDING/ADMIT PHYSICIAN: Daniel G. Olanka‚ MD RADIOLOGIST: Morton Monson‚ MD PERSONAL PHYSICIAN: Ronald Green‚ MD EXAMINATION: Gallbladder ultrasound. CLINICAL SYMPTOMS: Increased bilirubin. GALLBLADDER ULTRASOUND: Examination was technically difficult with some limitations due to overlying leads. Large right pleural effusion identified. Gallbladder is visualized. No obvious
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RESULTS AND CALCULATIONS Ligroin Toluene Ethanol H2O Anthracene Did not dissolve Slightly dissolved Did not dissolve Did not dissolve Benzoic acid Did not dissolve Dissolved Slightly dissolved Did not dissolve Phthalic acid Almost dissolved Almost dissolved Did not dissolve Dissolved Resorcinol Dissolved Dissolved Dissolved Dissolved Sodium naphthionate Did not dissolve Did not dissolve dissolved Dissolved Table 1. Results for the five compounds tested in four different solvents. Functional Group
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38 Sujet : Subject Référence : Reference EUROPEAN REGULATION – REACH Pages Pages CE9 Version : Revision Q Date: 09/12/10 Etabli par : V.NGUYEN Established by Validé par : Approved by C. De Meerschman RÉFÉRENCE NORMATIVE NORMES REFERENCE CHAMPS D’APPLICATION APPLICATION FIELD OBJECTIFS PURPOSE Regulation 1907 / 2006 of the 18th December 2006 All the products European frame for the REACH Regulation WARNING: The user is responsible for checking any
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D) is catalyzed by the sodium halide salt. E) requires one equivalent of acid. 9) 10) In the Michael reaction‚ addition to the α‚β-unsaturated carbonyl occurs in a: A) 1‚2-fashion. B) 1‚3-fashion. C) 1‚4-fashion. D) 1‚5-fashion. E) Diels-Alder reaction. 10)
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Pure Biphenyl freezes at 71.0 c. A solution of 1.44 g of Anthracene (C14 H10 molar mass = 178.2 g/mol) and 12.87 g of biphenyl froze at 21.1 c. Calculate Kf of Biphenyl. The solution has 1.44 g of anthracene in 12.87 g of solvent also have 1.44 g/ 178.2 g / mole of the solute = 0.00808 moles in 12.89 g of solvent moles of solute / kg of solvent = 0.008008 x 1000 / 12.89 = 0.62690
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INTRODUCTION The purpose of this experiment is to synthesize trans-9-(2-phenylethenyl) anthracene from benzyltriphenylphosphonium chloride and 9-anthraldehyde through the reaction mechanism recognized as the Wittig Reaction. The Wittig Reaction allows the chemist to synthesize phosphoranes in the lab with relative ease. A more recent and inexpensive version of the reaction is the Wittig-Horner reaction (1). ABSTRACT Georg Wittig was a German chemist and Nobel Prize winner in 1979 for the Wittig
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HITLERS RISE TO POWER (1923-1934) Author -*Simon lugwisha* INTRODUCTION Adolf Hitler’s rise to power began in Germany in September 1919] when Hitler joined the political party known as German Workers’ Party the name was changed in 1920 to the National Socialist German Workers’ Party‚ commonly known as the Nazi Party. This political party was formed and developed during the post-World War I era. It was anti-Marxist and was opposed to the democratic post-war government of the Weimar Republic
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