concentrated hydrochloric acid. Q6. Explain why the solution became milky white in appearance after adding 11 M HCl(aq) to the tertiary butyl alcohol. Q7. A student is given two alcohols with which to perform Lucas Test. These are cyclohexanol and 2-methyl-2-propanol. The bottles containing each alcohol are labelled‚ but the propettes used are not. The student accidentally muddles the propettes. When drops of each alcohol are mixed with Lucas. Reagent and kept at 27 °C‚ both solutions become turbid
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Synthesis of Triphenyl Phosphate and Benzyl Benzoate with Phase-Transfer Catalyst in Heterogeneous Liquid-Liquid Reaction System S a t o r u Asai‚’ Hidemi Nakamura‚ Mitsunori Tanabe‚ and Kenji Sakamoto Department of Chemical Engineering‚ University of Osaka Prefecture‚ Sakai‚ Osaka 593‚Japan The synthetic reactions of triphenyl phosphate from diphenylphosphoryl chloride and sodium phenoxide and of benzyl benzoate from benzyl chloride and sodium benzoate with phase-transfer catalyst were studied
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Aspirin) Background Salicylic acid is a phenol as well as a carboxylic acid. It can therefore undergo two different types of esterification reactions‚ creating an ester either with the hydroxyl or with the acid. In the presence of acetic anhydride‚ acetylsalicylic acid (aspirin or ASA) is formed. Correspondingly‚ an excess of methanol will form methyl salicylate‚ which is also an analgesic. In this experiment‚ we shall use the former reaction to prepare aspirin. Salicylic acid
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Chapter I PRODUCT SPECIFICATION I. Introduction Mango (Magnifera indicia) is a major tropical fruit that is widely consumed in the society. It is considered the dominant tropical fruit variety in the world (Sarris 2003) with total production worldwide of about 25 million metric tonnes a year. It is a succulent‚ delicious fruit with a high nutritional content that is commonly consumed when ripe. Mango is a seasonal fruit that is native to Southeast Asia. As a result of its sweet taste and the large
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and 2853.8 cm-1 (Sp3 C-H); H1NMR (d6-DMSO) 11.487ppm (2‚ 0)‚ 6.097ppm (M‚ 2H)‚ 3.160 ppm (D‚ 2H)‚ 2.995 ppm (S‚ 2H)‚ 1.280 ppm (S‚ 2H); 13C NMR (d6-DMSO) 173.979 ppm‚ 135.199 ppm‚ 48.714 ppm‚ 48.269 ppm‚ 46.384 ppm. After hydrolysis the Fisher Esterification reaction is ran on the diacid. In a 25 mL round bottom flask the endo-diacid is mixed with methanol and concentrated sulfuric acid. A boiling chip is added to the flask and a reflux condenser is attached. The mixture
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experimental research‚ edible rice bran oil used as test material and converted into methyl ester and non-edible jatropha vegetable oil is converted into jatropha oil methyl ester‚ which are known as biodiesel and they are prepared in the presence of homogeneous acid catalyst and optimized their operating parameters like reaction temperature‚ quantity of alcohol and the catalyst requirement‚ stirring rate and time of esterification. In the second step‚ the physical properties such as density‚ flash point
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Chemistry 116: General Chemistry Syracuse University Project Advance Spring 2009 Exam #4 Name Date 1. The bombardment of with nuclei gives two products‚ one of which is The other product is ________. A. B. C. D. E. 2. The decay of to occurs through the emission of a(n) ________. A. alpha particle B. beta particle C. neutron D. proton E. positron 3. Radionuclides which have too low of a neutron/proton ratio generally decay through ________
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standard and DMSO-d6 as solvent. Mass spectra were taken on Shimadzu GCMS QP-1000EX instrument by direct inlet technique‚ at beam energy 70 eV. The 3-acetylquinolinone AQ was prepared according to literature method (Roscheger and Stadlbauer‚ 1990). 2-(1-Methyl-4-hydroxy-2-oxo-1‚ 2-dihydroquinolin-3-yl)-2-oxoacetic acid
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Synthesis of Salicylic Acid and Potentiometric Determination of its Purity and Dissociation Constant ------------------------------------------------- Abstract The purpose of the study is to synthesize salicylic acid from the ester‚ methyl salicylate‚ and determine the acid’s dissociation constant and purity. The ester was converted to salicylic acid by base hydrolysis. The products were refluxed and recrystallized‚ to ensure maximum purity‚ and filtered‚ dried‚ and weighed. The melting point
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and then allowed to cool. Reaction between the alcohol with the oxidizing agent will produce sodium salt (i.e sodium benzoate)‚ which on acidification with hydrochloric acid will produce benzoic acid. Objective To prepare benzoic acid from benzyl alcohol. Materials Sodium hydroxide‚ potassium permanganate‚ benzyl alcohol‚ concentrated hydrochloric acid‚ sodium sulphite‚ methyl orange solution‚ anti-bumping stone granules‚ Buchner funnel‚ 100 mL round bottom flask‚ and filter paper. Methods 1
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