Alcohols.docx

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UNIVERSITY OF BALAMAND Faculty of Sciences Department of Chemistry Organic Chemistry Laboratory I Names: Lara Frangieh Anthony Dahdah Nayla Mouawad Experiment Title: Chemistry of the Alcohols Experiment #: 7 Date: 29/11/10 Submitted to: Dr. Ghassan Bechara 1
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Introduction: Alcohols undergo a variety of chemical reactions. They may act as a base, where the hydroxyl (OH) group is removed in the reaction (the C–OH bond is cleaved), or as an acid, where the H is removed (the CO–H bond is cleaved). The purpose of this experiment was to demonstrate the chemistry of alcohols through a series of experiments. The first experiment carried out was to compare the rates of reaction of primary, secondary and tertiary alcohols with hydrogen chloride (halide) (a reaction involving the removal of the OH group), and to see the effect of heating on these reactions. The second experiment dealt with the oxidation of alcohols (involving the cleavage of the CO–H bond), and with the order of reaction (which class of alcohols - 1˚, 2˚ or 3˚ - reacts fastest). The last experiment showed how distinguishing tests (acetate test and salicylate test) based on smell can be carried out for ethyl alcohol (esterification reactions involving the removal of the H, i.e. cleavage of the CO–H bond). Chemicals Used: n-butyl alcohol (butan-1-ol) s-butyl alcohol (butan-2-ol) t-butyl alcohol 2
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Ethyl alcohol (ethanol) Acetic acid (CH 3 COOH) Brine solution (NaCl) Sodium hydroxide (10%) (NaOH) Concentrated hydrochloric acid (HCl) Sulfuric acid (10%) (H 2 SO 4 ) Potassium permanganate (KMnO 4 ) Sodium dichromate (Na 2 Cr 2 O 7 ) Salicylic acid (S.A.) Distilled water Cold water 3
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  • Winter '15
  • Amir Alimohammad

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