composed of sucrose (10%)‚ aspirin (40%)‚ and Tylenol (50%). Although this information is reported‚ the true composition of Panacetin is questionable. While sucrose and aspirin are present in Panacetin‚ Tylenol may be replaced by an unknown component (acetanilide or phenacetin). Separation of the components of a sample of Panacetin may prove valuable in identification of the unknown component‚ as well as the true percent composition of each component of Panacetin. This experiment involves two parts‚ covering
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Xanthoproteic Test Conc. HNO3‚ conc. NaOH For W‚F‚Y (aromatic except for H) Blue to blue-violet Oxidative decarboxylation color & deamination followed by (proline:hydroxypr condensation oline gives a yellow color) Yellow sol’n/ppt. Nitration via SEAr with conc. HNO3‚ orange with excess NaOH Millon’s rgt.(Hg2+ & Hg22+nitrates& nitriles/Hg(NO3)2 in conc. HNO3‚ w/ trace of HNO2/HgSO4‚H2SO4 ‚NaNO2) Hopkins-Cole Test Glyoxylic acid (Mg powder‚ oxalic acid‚ HOAc)‚ conc. H2SO4
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Objective: Separate and purify acetanilide from a mixture by recrystallization. Compare the melting points of crude and recrystallized acetanilide. Introduction : The most common method of purifying solid organic compounds is by recrystallization. In this technique‚ an impure solid compound is dissolved in a solvent and then allowed to slowly crystallize out as the solution cools. As the compound crystallizes from the solution‚ the molecules of the other compounds dissolved
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toluene‚ cyclohexene and naphthalene in hexene were subjected to parallel chemical testing to differentiate their intrinsic physical properties in terms of structure and behavior. The physical state and color were noted by simple physical observation. Nitration Testing was conducted for preliminary parallel testing until a positive result of yellow oil was seen. For the second and final testing‚ oxidation was done through introducing 3 drops of KMnO4 reagent and 2 drops of 10% NaOH solution to 5 drops of
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Esterification and Hydrolysis: Methyl Benzoate by Fisher Esterification Nitration of Methyl Benzoate Jingling Li 2/16/2014 Purpose of the experiment: To understand the mechanisms for Fisher esterification reactions as an equilibrium process and hydrolysis is the reversal reaction of esterification. Nitrate methyl benzoate by an electrophilic aromatic substitution reaction. Summary of procedures: Add sulfuric acid to the mixture of benzoic and methanol‚ heat up the mixture to 65 oC
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The early twentieth century led to the discovery of penicillin‚ which revolutionized the use of curative agents to combat many bacterial contagions found around the globe. This was particularly useful in 1943 when the War Production Board outlined a plan to mass-produce a powdered formula of the drug to aid in the WWII American war effort.1 Penicillin’s use on Allied forces in the field reduced the number of amputations and deaths by an estimated 12-15%.2 Despite penicillin’s continued use today
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Results: Melting Point: Compound | Experimental (°C) | Lit value (°C) | Ice-water | 2°C | 0°C | Naphthalene | 81-83°C | 80-82°C | Acetanilide | 113-116°C | 113-115°C‚ 128-129°C | Acetylsalicylic acid | 136-140°C | 135-140°C | Salicylic acid | 159-162°C | 158-160°C | Succinic acid | 186-188°C | 185-189°C | Compound Structure: Naphthalene | Acetanilide | Acetylsalicylic Acid | Salicylic acid | Succinic acid | Water | Eutectic Point Determination: Melting Point Compound | Experimental
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tribromide and use ethanol to rinse sides. Heat for five more minutes; cool down to room temperature‚ then ice bath. Collect product by vacuum filtration. Weight dry product and take melting point. Synthesis of Bromoactanile: add correct amounts of acetanilide‚ sodium bromide‚ ethanol and acetic acid in an Erlenmeyer. Add a stir bar and plug the top with cotton. Place the flask in ice bath to cool. Add 7ml bleach and continue to stir for a while. Remove flask from ice bath and warm to room temperature
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Tatiana Pachova BSc‐2‚ chemistry Assistant : Chandan Dey Sciences II – lab. A Nitration of bromobenzene (n°28) 1. INTRODUCTION 1.1) 1.2) Purpose The objective of this experiment is to synthesize the p‐bromonitrobenzene (bromo‐1‐nitro‐4‐benzene) out of bromobenzene‚ by nitration. Scheme Br Br HNO3 / H2SO4 Mechanism The first step is the formation of the NO2 from the nitric acid: NO2 1.3) O O S N
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Nor Amirah Farhana Nawawi Organic Chemistry Lab Report Bo Shen Title: Nucleophillic Substitution Reaction Introduction: This lab experimented on the reactions of the chemicals that undergoes SN1 or SN2 reaction. Nine different compounds were given to be examined with two reagents - NaI in acetone and AgNO3 in ethanol. The SN1 reaction happens in AgNO3 in ethanol reagents‚ and SN2 reaction is in NaI in acetone. Procedure: Following the lab manual. Results: compound NaI /acetone (SN2) AgNO3/ethanol
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